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    Response
    Re: Futaba F14 Controller Arrived!
    Iโ€™m happy for you, thatโ€™s a neat
    transmitter
    ! If I didnโ€™t have so many of my models using a FrSky
    transmitter
    and receivers, Iโ€™d think about going that route myself. Anyway, good call on the F14 and the Smit Nederland!
    11 hours ago by Cashrc
    Forum
    Extra channels
    Those of us with long memories might recall the difference between the words 'channel' and 'function'. Nowadays a 'channel' is thought of as a stream of information dedicated to a single task - such as working a rudder. That stream carries 'proportional' positioning information, and so can be thought of as carrying a set of theoretically infinite positions between 0% and 100%. If it was not used to position a servo, it might be used to control a 100-position switch, for instance! In the early days of radio control, we did not have the luxury of multiple channels, each carrying proportional information, sent as a single frame which could be separated out and sent to different servos. We had a signal - it was either on or off. If we wanted to do more than one thing, we had to process the signal ourselves - usually mechanically. One 'channel' meant one signal. In its basic form we used an 'escapement' - a bit of mechanics which switched its state once every time it was given a signal pulse. So one pulse would move a bi-directional mechanism from neutral to 'right', and the next pulse would move it to 'left'. For model boats quite complex switching systems could created, driven by a single channel. They were like old telephone dials, whereby a 10-position switch could be pulsed round one click at a time. if you combined that with a mechanical delay on each position you could select one action without initiating all the others - if you were quick! More sophisticated kits had multiple channels - giving one switch for left, and another for right, a third for 'up' and so on. Full control of an aircraft needed 8 channels, and you needed some extra ones to give in-flight trim! When proportional systems came out the old use of the word 'channel' became redundant - each proportional channel was the equivalent of an infinite number of 'single channels' - and for a while the word 'function' was used. So what would have been a 4-channel
    transmitter
    became a 2-function
    transmitter
    .... Nowadays we do everything electrically, but it would be possible to create a mechanical device which would give Martin multiple switches running off a single proportional 'function'....
    7 days ago by DodgyGeezer
    Forum
    Extra channels
    My frsky Tx can operate 16 channels. This can be done by either fitting two X8R receivers or using 8 channels on one X8R and s-bus with two four channel decoders for the second eight channels. These do not need switching as you can set the
    transmitter
    for either 8 or 16 channels. The s-bus channels can be 1-8 or 9-16. My Dusseldorf Fire Boat will use all 16 channels, if I get it right or if I actually complete it.๐Ÿ˜
    7 days ago by MouldBuilder
    Forum
    Wiring help needed.
    Good day Doug and Martin, I think I am on the same page as you now, look at my sketch and see what you think. Still have a channel free, so might use another rc switch to operate the radar. If it is correct I will then ask for help setting up the
    transmitter
    . Ah the mistery of radio control systems. Cheers Colin Ps none of 40 mhz stuff had enough channels. And just found another one of my old flight tx's. See picture. Can't find my instructions for any of this lot so sailing in thick fog.
    8 days ago by Colin H
    Forum
    Wiring help needed.
    What I need to do is to get the thruster to run in 2 directions??? I thought that you were going to drive a second reversible ESC from the receiver to the thruster, and stick a voltage-dropping line in the ESC output if it was a bit too high? ...then combine that channel with the rudder if your
    transmitter
    is programmable... if you want them to operate together...
    9 days ago by DodgyGeezer
    Forum
    Wiring help needed.
    Thanks Doug, I have sketched the layout as best I can. Lights and radar will be switched direct to batteries. I need 4 channels to operate the esc, rudder, fire hydrant rotation, and fire hydrant vertical movement. The pump is switched via micro switches and cam on the rotator so it only works when pointing away from the boat. What I need to do is to get the thruster to run in 2 directions??? The UBEC can give me either 5 or 6 volts output. So I'll need to switch it somehow, as it only needs to run at one speed. I only have a 4 channel rc
    transmitter
    and receiver spare at present, so I may go with a fixed height on the fire hydrant if i need another servo channel to control the thruster. ๐Ÿค” ALL and any help gratefully received. Now to go and look at the electrics on the Wavemaster. Cheers Colin.
    9 days ago by Colin H
    Forum
    Sea Commander.
    Well fellow boatworlders, here is the Sea Commander. Originally built in the early 1960s by modeller from Cumbran in Wales. Sadly it had been left in a shed for a few years where it suffered the ingress of damp and woodworm. I have managed to turn the propshaft and motor with the aid of WD40. I have hopefully cured the woodworm in the keel and injected it with resin to stabilise. I can't move the rudder servo. And the forward and reverse system is a puzzle to me, also the old rx may not work unless I can locate a suitable
    transmitter
    . If anyone has an old magregor
    transmitter
    that is no longer needed I would be interested in buying it. The Hull and superstructure are solid and in fair condition, which is he as I am in the process of renovating my dad's old one and it has parts missing which I can measure and rebuild. All comments appreciated. Cheers Colin.
    10 days ago by Colin H
    Forum
    Charity shop find.
    Hi ya here are a couple of pics of the bow thrusters that I am using in the Seaforth Clansman - as I have said - the one at the front :-) - is linked in with a Y lead to the rudder - the stern bow thruster is on its own stick on the
    transmitter
    (I think its channel 2) so, therefore, I can control the model by making it move sideways across the lake and also spinning it on the spot. Both thrusters have independent speed controllers.
    15 days ago by JOHN
    Blog
    Detailing the pilot house and 2nd lash up
    So, the few guys we had ready to sail today decided to postpone due to people being out for various reasons, and itโ€™s just too doggone hot in Texas in during most of August. I can deal with highs in the 90s, but when itโ€™s 100 or over, Iโ€™m out. When I used to fly a lot, I would disappear from around the end of July to the first week of September. Iโ€™d rather sit in my somewhat air conditioned garage and build to utilize my hobby time than stand in a field, or at the edge of a pond holding a
    transmitter
    and roasting in my own juices. Anyway, I had taken all of the details off of the pilot house, and this week I masked the windows and did a repaint, as well as making another railing as the first one wasnt up to snuff. Today I added the details back plus many I had not finished, built up the catwalk, then spilled the holes in the pilot house that the catwalk support tubes will be glued into. I then did another lash up to see where I stand, and what adjustments need to be made. Iโ€™m that close to finishing all the details that will glue to the deck/hatch, hopefully next update will find that part finished. Cash
    1 month ago by Cashrc
    Forum
    Problem with Skysport 4
    transmitter
    TV4F
    Hi there I wonder if anyone has had a similar problem to this one. Had model boat down to the lake today; and the transmission range was shall we say 'very short' say about say 20 yards. I had the same problem last week with a totally different model but same
    transmitter
    . No-one was on the same frequency, and the aerial was fully extended on the
    transmitter
    and on the model I had this morning, the aerial runs along the deck for the receiver - and - the model I had out last Sunday (an MTB which the aerial is coiled around the inside of a Carley float on deck ) , The MTB (I know for a fact has a range of over 1/4 mile with a Skysport 6
    transmitter
    ). Riggers and I tried this out a few years ago. Now, came home today thinking the aerial wire may be snapped inside the
    transmitter
    - took it all apart - but couldn't find a thing wrong. No evidence of black wire or anything inside the
    transmitter
    . But, I noticed - when I switched the
    transmitter
    on - and removed the crystal from the
    transmitter
    - the power needle goes up to 100% - replace the crystal into the
    transmitter
    and it drops down to the near enough 60% or, just outside the red bar. Tried this crystal and other crystals in another Skysport 4 which I have and it stays at 100% same as on my Skysport 6. So, has anyone experienced this type of problem/any ideas - I still cannot sort the shortness of range - Its as though there is a short when you plug a crystal into the
    transmitter
    . Obviously I have tried various other crystals in this
    transmitter
    , but, they all have the same affect. John
    2 months ago by JOHN
    Forum
    Mixing throttle and rudder
    Having read somewhere on this site ( I canโ€™t find it now!) that turning a 34โ€ crash tender at speed can be a problem I have been thinking about ways to Reduce the risk. The obvious way is to pilot it carefully, turning gently, or slowing before turning sharply. But that requires the pilot to be paying attention. Iโ€™m not sure my young grandson would take that care, even if I do. So, is it a good idea to mix throttle and rudder to overcome this issue. It seems to me there are two options: 1. Reduce the rudder throw based on the throttle setting. i.e. mix such that as the speed increases, the maximum rudder throw reduces. Or 2. Reduce the throttle based on the rudder demand. i.e. mix channels so that the boat automatically slows based on the rudder demand. I havenโ€™t found any reference to this on this website, which make me think it isnโ€™t a good idea, but I would be interested in any thoughts from those with much more experience than I have. Also, can these mixes be set up on an fs- i6x
    transmitter
    ?
    2 months ago by Graham93
    Forum
    Problem with Skysport 4
    transmitter
    TV4F
    Hi Doug , This is the type of battery that was in the
    transmitter
    slow drain https://www.componentshop.co.uk/9-6v-eneloop-2000mah-aa-flat-
    transmitter
    -battery-pack.html
    2 months ago by JOHN
    Forum
    Problem with Skysport 4
    transmitter
    TV4F
    Hi there Doug sorry for the delay in replying, your knowledge and replies are much appreciated. What I have been doing the last day and a bit is, going through my
    transmitter
    s and checking all their batteries and what I have found is that I have two which are 'duff' and they are the slow drain type. Its got me thinking. Due to the fact that we don't charge these often, is this one of the reasons that the cells are prone to deteriorating? Be interesting to see if anyone else has had this problem. I am going to go back to the standard battery pack for the
    transmitter
    s because I had 2 old ones in the drawer and they have charged straight up and replaced the one in the 4 channel
    transmitter
    that was duff and everything seems hunky dory now, or , seems that way - so it will be a test on Sunday to see if I get a greater range :-) john
    2 months ago by JOHN
    Forum
    Problem with Skysport 4
    transmitter
    TV4F
    Hi there thanks for the reply; I think I may just have solved the problem - the battery pack for the
    transmitter
    looks as if it has a duff cell in it - cos when I put the battery under load out of the
    transmitter
    - the voltage dies off rapidly, even though its fully charged,. Could be the strong suspect.
    2 months ago by JOHN
    Forum
    Mixing throttle and rudder
    I did this, well sort of, by using the settings in my
    transmitter
    , which at the time was a spektrum DX6i. You use dual rates, and exponential settings, I would imagine most modern 2.4 sets have this feature. In simple language, dual rates (D/R) will limit the throw, so by experimenting you flick the switch, and all of a sudden you have limited the throw of the rudder, flick it back for slower speeds and you have full movement. Exponential (expo) nulls the centre stick movement, and is generally on the same switch, so it makes the stick (rudder) in your case less sensitive, so easier to use at higher speed. Just remember though, most
    transmitter
    s and receiver have aeroplane terminology, so, if your rudder is right stick, this is labelled as the aileron in the instructions, menu and so on
    2 months ago by pmdevlin
    Blog
    Andrea Gail continued
    Got around to the railings & some of the crane hardware . Haven't done a lot other than wiring up all the electronics had to use a older
    transmitter
    as the newer 2.4 g
    transmitter
    s don't have servo reverse switch's my rudder was backward's . Made up two battery boxes for 5 AA rechargeable batteries to make 6 volts used a holder for 4 & added a single holder for the 5th battery
    2 months ago by GARTH
    Forum
    futaba radio and receivers
    I have been using Futaba 2.4 for years, be aware there are 2 systems, FHSS and FASST, they are not compatible, except with some of the high end
    transmitter
    s which work with both systems. As to other type compatible receivers, i have Corona and Orange, a lot cheaper than Futaba, they do work, but, as Dodgy said, you might lose some range, look for the ones that are surface receivers, 'air' receivers depend on height for there range, also beware of park fly receivers, they are very limited range, park or indoor. It all depends how many channels you need to use. if you need more info give me a shout
    2 months ago by jarvo
    Forum
    Motor reversing
    Thanks for the link Fred๐Ÿ‘ First thread I looked at 'Submarines and 2.4GHz' is a timely warning! Read it and you will understand why I have a stock of 40MHz RXs from Standard to Pico versions. And why I bought all the 40Meg crystals I could find locally a few years ago. I also have two MC-10 40Meg
    transmitter
    s plus the 40Meg job that came with my Southampton tug. Southampton is being converted to 2.4Gig leaving that TX free for my subs๐Ÿ˜Š Cheers, Doug ๐Ÿ˜Ž http://www.theassociationofmodelsubmariners.com/t83-openlrs-and-2-4-ghz-and-submarines BTW: I think this should be a good source of 40Meg sets, tailored to submarine use๐Ÿ˜Š, for some time to come. This guy is a specialist who does ONLY sub stuff. https://engel-modellbau.eu/shop/en/home/
    2 months ago by RNinMunich
    Response
    Re: Stern Module assembly
    Hi Pete, "I have now purchased my chosen motors. They are MFA 360. ... I wonder if I have to put the usual three suppressors on the motors if running a 40Mhz
    transmitter
    ." Most definitely!! Considering the attenuation of RF signals under water the last thing you want to do is take risks with interference๐Ÿ˜ฎ As the RF signal level falls off when you dive the boat any local interference, i.e. from the motors, will become more significant at the RX input. Re warped stern parts. You could try gently (and I mean gently Bentley!) warming the part (hair dryer?) while weighting it down on a flat surface. You may want to put some shaped wood block supports inside to ensure the part does not bend inwards. Cheers, Doug ๐Ÿ˜Ž
    2 months ago by RNinMunich
    Blog
    Stern Module assembly
    This weekend I decided to do more work on the Gato Submarine. Now I am starting to realise how big this job to build the model is, let alone the WTC which I am thinking about and starting to plan in tandem. I have been working on the stern module today trying to get the rudder and aft planes in a working state. I have followed the video made by a kind soul on the internet which I am finding very helpful. To make them fit properly has resulted in a lot of filing and reshaping particularly on the rudder. All of the edges were interfering all over. After a considerable amount of adjusting, they now fit and work perfectly. A hole was carefully drilled right through the height of the rudder to allow for a shaft to be inserted for operation. Small holes were also drilled through some waste material to produce two running bearings for the rudder shaft. There has had to be a considerable amount of material removal inside the stern module halves to allow for the planes and rudder to work. This was done using a burr in the Dremel and files. Great care was taken not to remove too much and go right through the part. I am having a little problem with warpage of one of the stern halves. You can see the gap between the parts in one of the photographs. It might be that they will glue together without incident if I fix them well with bands during curing. Does anybody have a cunning plan to straighten this part before gluing? I have purchased the propeller shafts and tubes so further work on this module will continue when they arrive, probably towards the end of July. I have now purchased my chosen motors. They are MFA 360. I have also ordered the raw materials to make the motor mount and servo trays. I wonder if I have to put the usual three suppressors on the motors if running a 40Mhz
    transmitter
    . Next time I am going to work on the bow planes. I will have them working and retracting. I bought the gears for the retracting mechanism today but have found them to be too big on diameter to fit two side by side in the bow module. The gears are perfect in every other way so I think I will reduce them to quadrants which should fit nicely. More cad design work for me I think.
    2 months ago by MouldBuilder
    Response
    Re: 34'' Crash Tender
    Yes it was McGregor that produced kits. I still have a 27meg
    transmitter
    and receiver tucked away somewhere. I also have a couple of Elmic rubber driven escapements too [I was aeromodelling in those days].
    3 months ago by swanee
    Forum
    Hintsand tips - Decals made easy
    A really good way to get nice graphics is to order vinyl graphics from a web company called "Callies". Vinyl graphics are much sturdier than decals. They are very understanding of the needs of modelers. They will make whatever you specify for very reasonable charge. You deal with the company by email. You can get images and text; of whatever you need and specify colors, size, font etc. It's almost too good to be true. After you contact them with a request, you will receive an email with a price. They can easily produce replicates, so you can get some spares in case one is damaged or you want to stick some on your
    transmitter
    , boat stand or toolbox. It's a lot easier and cheaper then buying a vinyl cutter and learning how to use it. It might not cost much more than a pack of decal paper.
    3 months ago by Commodore-H
    Wiki
    Basic RC Setup
    NOT from me (RNinMunich)! I just edited it to delete a previous comment of mine! There are many people who are new to radio control, or may have had a model for a while and want to make it electric/remote controlled but don't know where to start. Hopefully I shall explain some basics here. I will start off with a two channel controller. You can get these from hobby shops or other RC shops, you can also buy them (usually a little cheaper) at boat fairs. it may be much better to buy a new one at first so that you get most of the RC parts in the same box as a complete set. Most
    transmitter
    /receiver sets such as Hitec or Futaba include the
    transmitter
    , receiver, the batteries to go with them and servo's. The style of
    transmitter
    is seen here showing the control layout. The channels match up on the receiver and the corresponding equipment should be plugged into it. The wiring can be fairly easy to setup by just following the diagram shown below, providing the speed control has B.E.C. (Battery Elimination Circuit) you will not need the separate battery for the receiver. It is advisable that you incorporate a switch and a fuse in either wire coming off the battery. This will reduce the risk of future smoking electrics if things go wrong! ๐Ÿ˜Š
    3 months ago by RNinMunich
    Forum
    Can anyone help please?
    I have just fitted the rudder servo and connecting rods and tested them with the radio without problem. I was about to install the motor and speed controller in the hull and connected all up to test. I connected the servo and Moronic Hydra 50 G2 speed controller to the receiver, then connected the brushless motor and lipo battery, all correct colour to colour as I have done several times before, turned on the
    transmitter
    then the speed controller and the speed controller went up in smoke!!! The only uncertain connection was which way round the cables connected to the servo, again I have connected these before and changing direction of fit makes them operate if they are the wrong way round. I suspect the speed controller is ruined now as the whole system is lifeless. Can anyone offer some advice please....and how do I get rid of the smell? !!!!
    3 months ago by Brianaro
    Directory
    34'' Crash Tender
    Here is my Crash Tender together with the homemade 27MHz
    transmitter
    . Built in the early 1970s. The collage photo is from 45 years ago, sailing on the boating lake in Llanfairfechan, North Wales. Recently rescued from the garage covered in dust. Diesel replaced with brushless motor and on the water again. Now in dry dock for a major refit!
    3 months ago by Graham93
    Directory
    Puffer
    Built from Mountfleet kit. Chain drive operates Rudder . Puffer sound, whistle, smoke generator, working lights Navigation and interior also flickering orange and red for boiler fire.all switched from
    transmitter
    .
    3 months ago by Elsrickle
    Forum
    Help and advice please
    Hi JB, Comes from 30 odd years of designing COMMS systems for naval vessels, including submarines. Did several surveys of submarines for refit designs. At 6'2" I'm not built for working on subs, kept bangin' me 'ead! ๐Ÿ’ฅ๐Ÿ˜ญ๐Ÿค• Martin, whales have the advantage that they are transmitting directly into water, where sound travels about 4 times faster than in air at sea level. And they can do this mechanically, process still not fully understood, at very low frequencies from around 2Hz to 100Hz mostly. Hence the long ranges achieved. Up to maybe 24kHz for short range echolocation - nosh hunting!๐Ÿ˜œ Interestingly, spectrum analysis of Humpback whale sounds shows an FM type structure with pulsed modulation. Just like our FM RC
    transmitter
    s! ๐Ÿ˜ฎ We have to transmit first through the air, for several thousand kilometres in some cases, and then have enough energy left to penetrate down a hundred metres or so. We have to do this electrically, hence long antennas. Wavelength = Speed of light / frequency in Hertz! Do the math - it's a long chunka wire!๐Ÿ˜ฎ Halfwave at 8kHz ~18.75km. Happy whale listening folks,๐Ÿ˜Ž PS; JB, you can always use the antenna for a spot of fly fishing - while waiting for your sub to come up again!๐Ÿ˜ฎ
    3 months ago by RNinMunich
    Forum
    Help and advice please
    As Doug said, ditch the AM radio, prone to just about any interference these days. This is pre FM (which better and is still used by some in more remote interference free locations but is still prone to interference, plus you need to change frequencies TX and RX) with both of these sets if another person is using the frequency you have). This means either waiting for a frequency to become free (and making sure no one is on your frequency so you don't destroy someones model) or having a number of pairs of frequency crystals to change to, plus having to use a frequency peg board at clubs. Buy a modern 4 or 6 channel
    transmitter
    on 2.4G and you won't have to worry about all of that. 27Mhz -on (AM) 40Mhz -on(FM) is 40 yr old technology really
    3 months ago by jbkiwi
    Forum
    Help and advice please
    Hello again, I was donated this
    transmitter
    and wondered if it would be any good and can i get a receiver to match it. I have no idea how to know which is receiver is compatible. Thanks Gren
    3 months ago by Gren-York
    Forum
    Help and advice please
    Excellent suggestion TG ๐Ÿ‘ I use the German branded version of this system and it works perfectly. You only have to first dump or overwrite all the default aircraft/heli presets! Gren: dump the 27MHz receiver. Your chances of finding a matching
    transmitter
    are remote. And the 27MHz band is prone to severe interference anyway ๐Ÿค” Cheers, Doug Oh! BTW: Welcome aboard ๐Ÿ‘
    3 months ago by RNinMunich
    Forum
    Help and advice please
    Here is a new
    transmitter
    and receiver that will work for you. It has a few extra channels that you dont need. https://www.ebay.co.uk/itm/Flysky-FS-i6X-2-4G-6CH-RC-
    transmitter
    -With-FS-iA6B-RX-for-RC-Car-Boat-in-stock/292884688293?hash=item443149ada5:g:8jMAAOSwclxcuT5z
    3 months ago by tgilchristjr
    Forum
    Help and advice please
    I run sailboats all the time. For the battery pack you can use a 6v hump pack. Here is one with a charger. (you dont need the switch)( I'm in the US so I dont use the UK Ebay site much. https://www.ebay.co.uk/itm/Modelsport-UK-6v-Receiver-Battery-and-Charger-Pack-Hump-Pack-MSRXNP/253828164657?hash=item3b19566c31:g:s88AAOSwAlJbfoYD For the
    transmitter
    , there are 2 ways to go. 1st is to use the existing older frequency receiver that you have and try to find a compatible
    transmitter
    , or just get a new
    transmitter
    and receiver combo.
    3 months ago by tgilchristjr
    Directory
    (Working Vessel) Mowe 2
    I hadn't build a RC model for over 45 years, so as a 60th Birthday present my wife bought me this Aeronaut Mowe 2 kit, complete with all the RC equipment; motor, servo,
    transmitter
    and receiver, ESC unit etc. It was a great kit to build and took me about 3 months from start to finish. The hull was a bit tricky, but a tube of P38 and lots of sanding, re-filling with light balsa filler, re-sanding, finishing and painting and patience won through! Not a brilliant finish, but an ideal boat to get my hand back-in to modelling. When sailing, the boat needed a bit of ballast in the form of 2 old AA batteries in the bow to keep it stable and level in the water at speed! (ESC: Aeronaut) (8/10)
    7 months ago by StuartE
    Forum
    Abergavenny steam and vintage show.
    Hi Colin . would be quite reluctant to admit how many half finished boats I possess - shall we say quite a few, at present there are about 15 completed that are still with me . Gave my grandson a large Ripmax speed boat - loves it but restricted to their swimming pool which is a bit small. (lots of home pools in SA). Making up a kit from a Graham Goodchild design to build with him when he visits in August. - easy and a more appropriate size. Tried to get my son interested but he was among the first of the IT generation - so computers got him to the extent its now his life's work. Did not help when aged about seven he fell into the harbour at our clubs dam whilst running my Rhodesian Patrol Boat - very proud of not getting the
    transmitter
    wet - but embarrassed and seemingly lost interest after that. Now he is a lot older and moving with work to Seattle it might be easier to get him interested as its got a lot of sailing places around............. Saddest loss was a boat given by an old friend of the family - an aluminum hulled motor yacht driven by a Taycol "Star" via the then usual 4 1/2 volt cycle lamp battery. Saw the same hull on Ebay also with a Star fitted some years ago but was unable to come up with the 50 odd quid they wanted. Think it possibly could have been a Basset Lowke yacht hull available in those long ago days , to fit out with your own deck & superstructure as our old friend did.
    4 months ago by redpmg
    Forum
    Fairmile c class maiden voyage
    hi there Chewi having read through your postings and watching your video - I am not sure if you have the ACTion P94 set up correctly. You should be able to spin that model round on the spot as the P94 contains a rudder motor mixer built into it. However, be warned, the P94 doesnt like certain 2.4
    transmitter
    sets. Basically, you have to set your
    transmitter
    back to zero manufacture settings with no mixing at all on your
    transmitter
    to get it working - and - its all done in the ESC - I have built several triple screw vessels myself - the RAF63and the MTBs and basically what I used to do there is use the old Electronize speed controllers from the 90s which dont have the pre-programmed chips in them so that I could switch the signal on and off to the speed controller, thus allowing me to control the centre prop by switching the signal off and on. So, when I wanted speed I ran on all 3 props but when I wanted to manouvre I switched the centre prop off and allowed the 2 outboard motors to spin the vessel with the rudders, using mixers. In this particular model - I would ditch the gelcel battery and go for a Ni-MH battery and the 9.6 volt 500 mAh - 3 of these batteries one for each motor should give you ample run time. John
    4 months ago by JOHN
    Forum
    Motor forward and reverse
    I am seeking some help with the electrical setup for my new Dusseldorf project. The model, when completed, will use 15 channels to operate fully. I am using a Frsky Taranis Plus
    transmitter
    with the x8r receiver. I have purchased two frsky sbus 4 channel decoders which will give me the required channels. I have most things covered, I think, but am a little stuck on what module I will need to make the small geared motors work in forward and reverse on one channel. I have a lot of the Turnigy rc switches to operate most of the functions but these will not give forward and reverse options. I have been thinking that I should have the main items such as rudder, throttle and lights etc operating through sbus on channels one to eight and the more difficult functions, such as the crane lift and lower and the anchor up and down, directly through the receiver on channels nine to 16. I think my problem with the lift and lower (reversing motor direction) might be solved this way by using the on off on switches, several of which are on the
    transmitter
    . I would love to hear what those who have experience of multiple channel usage think and possibly if there is a module that I could connect through sbus to give the forward and reverse option I seek. Thanks. Peter.
    4 months ago by MouldBuilder
    Forum
    R/C Boat for Sale
    For Sale:Rc Model Boat Sea Rover Red & White, wooden deck, 76cm x 25cm, Never used. Condition is New. New Saturn 2.4 Ghz radio
    transmitter
    & receiver included. Viper Marine 25 speed controller & motor included. Will need own battery supply. Buyer to collect.ยฃ250
    4 months ago by Jimbob901
    Blog
    Conclusion.
    I must say that I have really enjoyed building the Aeronaut Pilot Boat. The kit is well detailed and has a certain level of difficulty that suits me at the moment. This is the first project I have completed in 35 years. Boat projects that is. During the build I did encounter a few problems which, in my opinion, could be put right by Aeronaut. The first was the fitting of the skins. The laser cut parts had no extra material to aid fitting. They were difficult enough to fit but with no margin for error at all, I was losing the will to live. I had failure after failure and considering each attempt had to be temporarily set in position with tape, days and days went by. Finally, I managed to get them into the best position I could and stuck them down. I think I managed 95% good with about 5% I had to deal with later on. Most of any error is covered by the rubbing strake.๐Ÿ˜ Another problem is the connections for the two rudders. Fortunately, I noticed the issue early on so devised a repair before a problem was encountered. The instructions, and the parts themselves, were fitted with the screws facing towards the transom. Once the deck was glued into place the screws could not be reached. I redesigned the actuating mechanism so that the screws were facing forwards. They are still difficult to get at, but with a long Allen key it is possible. Getting all of the electrics working as I wanted was also a challenge. I could not find a way to programme three switches to operate on three channels. There is a way, so I understand, by using mixes on the
    transmitter
    . I looked everywhere for information on this site and others. I found nothing except everybody was saying that the ER9X firmware was the way forward. There was no way to update the Turnigy Tx I have so I found the perfect solution in the Turnigy 9X Pro
    transmitter
    with a frsky module. For ยฃ90 this is some piece of kit. I have programmed the three switches with ease and everything works well. One issue I have had and really would like some help with for future projects, is the connection of all of the wires from the removable cabin. I have used some rather large nine pin connectors and eight strand alarm cable. These can be seen in an earlier post. Does anybody know of where I can get much smaller multi pin connectors? For my next project, the Robbe/Krick Dusseldorf, I am considering nine pin DIN sockets. That concludes this build. I think a name might look nice on the side of the hull to break up the full colour. I will see what I can find. I would recommend this kit to those with a little experience. I think it is a little complex for a first build but who knows. Thanks for reading the blog and a special thanks to all of those who have offered valuable help at every stage, so until the next one, Happy Building. Peter.๐Ÿ˜Š
    4 months ago by MouldBuilder
    Forum
    Brushed to Brushless upgrade
    ".....brushless motors the main question is speed controller as I would need forward and reverse...." Simple answer. You can get reversible brushless ESCs. However, watch out, as boats are a minority interest and many cheap reversible brushless ESCs are designed for car use. These may have a 'braking' feature, which means that the controls work like this: forward stick = forward backward stick = motor braked quick forward and backward again = motor goes in reverse which is optimum for cars, but cumbersome for boats. A proper boat designed brushless ESC will be fine, as will be a cheap car one where you can turn off the 'brake'. RNinMunich recommends the Quicrun series of Chinese brushless ESCs, but of course products change all the time. So check that the ESC you are after is reversible, and has a 'no-brake' setting.... Rather more complex background explanation. This is my understanding of how one particular 'brushless' system works - there may well be other technologies out there... : 'Commutation' is the process of switching each coil in an electric motor on at the right time to get attracted to the nearest magnet and off when it passes the magnet, so that the armature will rotate in one direction. In a brushed motor this happens mechanically, and we don't need to worry about it. If you want to know a bit more, get a Taycol motor and start reading papers like this: http://what-when-how.com/electric-motors/commutation-electric-motors/ In a brushless motor, commutation is done by software inside the ESC. So the ESC is essential to a brushless motor - it won't run without one. What the software in a brushless ESC does is start the motor with a pre-programmed series of activations of coils. Once spinning, the software detects the generated back-emf as a magnet passes each coil, and uses this to work out the motor speed, timing, and hence which coils to activate next, depending on the throttle signal. Obviously, this happens very fast. If the motor went round slowly, the generated back-emf would be very low, and the ESC would have difficulty detecting it. So a typical brushless motor has a minimum speed which is quite high compared to a brushed motor. In a sensor motor, the ESC can be much more precise about timing because it reads it off the Hall-effect sensor. It can also run at much slower speeds. But the extra kit, and the low production levels mean that these are going to be more expensive motors. For a brushless ESC the starting process, and the reversing process, are much more complicated than they are in a brushed motor. In each case the software has to try to detect what the motor is doing and adjust the timing to get it running in the right direction 'blind', with possibly odd feedback from the coil back EMF. For a brushed motor, the ESC just reverses the polarity and the mechanical commutation automatically applies a force in the direction you want. The result is that brushless starts can be a bit jerky, and brushless reverses need 'setting up' with a process of signalling from your
    transmitter
    or using a program card. Since cheap brushless ESCs are often turned out with little documentation, making them reverse can sometimes be difficult for an inexperienced purchaser.
    4 months ago by DodgyGeezer
    Forum
    Ace Nautical Commander
    Dodgy - thanks for that - might just sell the Ace on Ebay - buy a cheap 2.4 and convert that. Was the article continued or not ? Noticed the make of the converted
    transmitter
    is not given .
    4 months ago by redpmg
    Forum
    Ace Nautical Commander
    The real benefit of this radio is the twin sticks - dont find those too often. Only one I know of is the very expensive German F14
    transmitter
    . No market for this here - be different in UK Only one fellow in SA repairs radios that I know of , so will try and contact him if no joy via the forum. Electronics engineer friend who could have handled conversion now living in the land of Oz! If I tried there would be big fat smoke signals.............
    4 months ago by redpmg
    Forum
    Ace Nautical Commander
    It might be a shame to alter the innards of such a radio - vintage radios like this make a lot of money if sold in original condition. See https://www.rcgroups.com/forums/showthread.php?2980389-ACE-Nautical-Commander-7-ch-NIB-AND-FOR-SALE-AGAIN Perhaps $200? To convert it to 2.4Ghz you would have to obtain a 2.4Ghz
    transmitter
    module. If you can do that, you can probably obtain a full 2.4Ghz combo and use that radio if interference is the primary issue. To convert you need to obtain a radio module, and then find the position in your
    transmitter
    where the signal is passed to the RF section. You then connect Vcc, GND and Signal to the new 2.4Ghz module. Some radios have a separate RF board, making this part easy, but if not you will need some way to find the bit to connect....
    4 months ago by DodgyGeezer
    Forum
    Motor, speed controller
    All got off ebay. The drone boys use this sort of thing extensively. Go there and google the items below. I have added approximate current prices - but I can recall getting some items considerably cheaper.... FPV Mini Digital Video Camera - about ยฃ6 Eachine RC832 Boscam 5.8G 48CH FPV Receiver Combo - 5.8Ghz Tx and Rx - about ยฃ14.80 7 inch Professional FPV Aerial Photography Monitor For Ground Station - about ยฃ17.50 FPV-Pro-DVR-Mini-Video-Audio-Recorder - about ยฃ11.30 Plastic-FPV-PT-Pan-Tilt-Camera-Platform - 99p! I also got an extra stick - about ยฃ10, a nice plastic box - about ยฃ25(!), and various connectors, switches, etc. The box contains a gel battery for the video, which can power the main R/C
    transmitter
    down the connector line - that's what the buttons and voltmeter on the panel are for... Note that the video
    transmitter
    runs hot - most of them seem to - which is fine on a drone, but thermal control needs some consideration on a boat. You can see a little heat-sink that I added.... P.S. Oh, and you'll need to arrange a 180 deg servo for the panning... P.P.S. You might want to consider a clover-leaf aerial. That enables what they call 'circular polarity' transmission, which is really useful for drones when the transmitting aerial is performing contortions in the air. For boats, a vertical aerial pumping out vertically-polarised waves may suffer from 'bounce' off the water surface, which turns the reflected waves horizontal. But these are very cheap anyway, and can be experimented with - a bit like different propellers...
    5 months ago by DodgyGeezer
    Blog
    Shipping and first trial.
    I decided that I would send the hull via UPS in a secured box with other items. I packed the superstructure in the second box made earlier and took this as hand luggage with me to Budapest. This proved to be almost totally successful except for some minor damage to deck hand rails on the hull which was not totally unexpected. A minor repair is required but will wait until my return in the Summer.๐Ÿ˜ I have attached a couple of pictures of the large box taken as I was unpacking it. I spent a couple of days doing final adjustments, fitting the props and fine tuning the
    transmitter
    set up. Then came the time to trial. Just as I was about to set off to the river. the wind picked up and the water surface became unsuitable for a trial especially as the recovery boat was unavailable. I decided to delay until the next day. The conditions the following day were perfect. I fitted the 2s 3300 Lipo and turned on the power. Next was to place the boat in the river and pray. The test went perfectly and I was very pleased. I have noted that the bow seems a little low in the water when not under power. Strange as all of the operating systems are towards the stern. Under power, this improves greatly and when on full power it looks perfect. I think I might moved the battery towards the stern slightly to see if there is an improvement. Later in the day, I had a second trial to check the effectiveness of the lighting. This was good as well but it would be nice if the blue flashing light was a little brighter. My last post on this series will follow soon with my thoughts on the model and the problems which have been encountered. I have taken a short video of both trials which I will upload soon.
    5 months ago by MouldBuilder
    Forum
    Turnigy Standard 9x
    transmitter
    Hello all. I hope you can help me before I lose all of my hair. I recently purchased a Turnigy 9x set which, according to all of the reviews I have seen, is good value for money. I am sure that they are all right but you need to be a genius to understand the instructions. Everything is in short hand. I am fairly new to the latest radios but I can read. This is not good. The internet has been invaluable and I have found a good instruction book for the Flysky 9x which appears to be the same. I have now got through the basics but I am having a problem achieving what I bought it for in the first place. My latest build, a Pilot boat, has been wired such that I need to use three channels to operate rc switches. I would like to use channels 5, 6 and 7. I have found that I can set 5 to gear which gives me one switch, another can go to throttle something to give me two switches, but the other choices go to trimmers only. After reading bloggs it seems that I can get a third switch working on, say, channel 7, but have to alter mix settings. I am completely lost now and wondered if anybody could instruct me as to how to get this third switch to operate on channel seven. Thank you.๐Ÿ˜Š
    7 months ago by MouldBuilder
    Forum
    transmitter
    Mode 2
    Newbie question. I am going to buy a FlySky FS-i6 and want a spring loaded throttle on left and spring loaded rudder on right. Do I get this if I buy mode 2. ie will it be spring loaded. Chose this brand as I understand it and use it on my sailboat. My sailboat
    transmitter
    is not spring loaded on left as it pulls the sheets on and is then left alone.
    6 months ago by juskiddin
    Response
    Re: Maxton modified wooden ornament
    Hi! Doug no the esc is not home brew, it was from ebay. "RC ESC 20A Brush Motor Speed Controller w/ Brake for RC Car Boat Tank" for ยฃ3.37 works well and as far as the interference suppression with capacitors; no I don't find any need for them now I'm on 2.4ghz. All my models work from the one 6 channel
    transmitter
    , and none of them have any suppressors on, although they are all brushed motors. Never had any problems. I don't do submarines so have no need for 40Mhz or 27 Mhz. I like to keep things simple!
    6 months ago by 4clubs
    Forum
    transmitter
    Mode 2
    I think you can buy kits to spring load the second stick on certain
    transmitter
    s
    6 months ago by Hillro
    Forum
    transmitter
    information
    It's the binding plug. You have to bind the receiver to its
    transmitter
    with that plug in using the instructions that should have been supplied with the kit. With your description, I would say it's an Frsky or Flsky system, as that is just what you described. Check out binding on you tube with your brand of Tx/Rx. Best wishes, Dave W ๐Ÿ‘
    6 months ago by rolfman2000
    Wiki
    2.4ghz TX/Radio
    2.4Ghz TX/Radio combo With the introduction of the 2.4 Ghz Radios the 27Mhz and the 40Mhz systems will soon become obsolete, they are however the only ones suitable for underwater submarine use as the 2.4Ghz will not transmit under water. With the 2.4Ghz system you can forget about wrong crystals; or is somebody on your frequency; dual conversion; incompatibility of some crystals on some radios; interference etc etc. need I go on. The first 2.4Ghz systems were expensive but now a
    transmitter
    and radio can be bought for just under ยฃ30 there seems to be no point in hanging on to your old 27 and 40 Mhz Radios.... START to update for a hassle free life. Additional receivers are only ยฃ10. It seems that the Planet and RadioLink are no longer readily available. FlySky are a suitable in-expensive alternative but are not compatible with Planet or RadioLink. A simple,one off binding process for your first time use and your set is tuned to just your
    transmitter
    . You can use just one
    transmitter
    and have all your boats fitted with receivers which will only receive signals from your one
    transmitter
    . Should you for any reason want to add or change your
    transmitter
    for the same type you can simple re- bind your receivers again to match your new
    transmitter
    SIMPLE !!!! If you do have a rather expensive 40Mhz
    transmitter
    it is possible to purchase an adaption kit to 2.4Ghz and still retain your
    transmitter
    , 2.4Ghz 4 to 6 channel receivers can be purchased for as little as ยฃ10 to match the modified
    transmitter
    .
    6 months ago by 4clubs


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