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>> Home > Tags > working monitor

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working monitor
Charging NiMhs, one for Doug?... by RNinMunich Fleet Admiral!   Posted: 4 months ago
Evenin' Martin, Oh dear oh dear oh dear! 😲 There is some good advice above, but maybe not optimally expressed for use by a Luddite! Sorry guys but this might be a relatively long post to separate the wheat from the chaff, explode a few myths and resolve this little conundrum of Martin's! One thing at a time! NUMBER1. THE RADIO- Dear Martin: Whatever possessed a self confessed Luddite and Scrooge like you to spring a large chunk of your hard earned pension on one of the most expensive and complex RC sets on the market in the first place???? I bought a Spektrum DX6 on impulse a few years ago while strolling around Conrad here in Munich. I've regretted it ever since. In retrospect it was way too expensive >600€, and complex. It is intended for the Fly Boys, as unfortunately most sets are these days. I have still not successfully programmed it to do what I want to do, instead of what it is pre-programmed to do for helis and fixed wing aircraft. Not even with it's own Spektrum RX, let alone a 'foreign' RX like Orange. So I have not yet risked it in a model. Definitely NOT my Catalina. Since then I have bought a Turnigy I6. Which does the same as the Spektrum, works fine with my Orange RX with giro for the Catalina😉, cost only 69€ (is now available for around 33 quid😡) and within a few hours I had it programmed and tested to do all I want in my destroyer and Sea Scout.👍 In short: the Spektrum is way way way Overkill for your yacht or Fire Float or similar, where you will only ever want rudder and sail servo / winch or rudder and speed control. So flog the Spektrum and get a nice simple (and cheap😉) 2 or 4 channel set. I can't imagine you ever wanting to start building special effects into your models so 2 (max 4) channels is all you will probably ever need. Stick your Spektrum on eBay, maybe you'll get at least a 100 quid for it. If you still want to go 2.4Gig get yourself a Turnigy i6 set with RX, 6 ch but cheap enough and I can help you directly with binding and programming from experience - I have a good English manual with no Chenglish gobbledygook. If not and you still have a working 27 or 40MHz FM set (40 would be better) use that. Where you sail, all alone, who's going to bother you or be bothered? BTW: Yes the Spektrum TX IS DSM2 and DSX compatible BUT you have to tell it what you want to use!!! Frankly I think trying that with a non-Spektrum RX is risky - especially first time out and for a novice Luddite😉 NUMBER 2. THE NiMh BATTERY- Voltage is not a reliable indication of battery charge / remaining capacity. After use a battery will recover slightly when at rest and the open terminal (off load) voltage will rise, often to the nominal voltage or slightly above. This is NO indicator of remaining charge as when a load is applied the voltage will drop again rapidly, the higher the current drawn the faster the voltage drops. If it goes below 1.0V per cell the battery will be permanently damaged and never regain it's original capacity. Haverlock is dead right about batteries losing charge when not used or regularly recharged. An NiMh batt loses charge at the rate of about 1% per day so after 3 months or so you can send it to the great recycling depot in the sky and buy a new one. Periodic cycling, discharge / charge prevents / minimises this - see care hints I posted above. And yes, NiMh do have that irritating Memory effect🤔 albeit not so pronounced as with NiCads. Lipos apparently not, but I ain't seen any evidence yet - the jury is still out! Sooo - ignore the 6.37V and run the batt through a discharge and full charge cycle. If your new NiMh batt has not yet been cycled and charged I would bet that it's present capacity is about 45%. See example below (and in attached pic) of one of my new 4.8V (nom) NiMh RX batts. NUMBER 3. THE CAPACITY CHECKER - "Glorified voltmeter" ? Where did the 6.37V reading come from if not from your 'new toy'? If it is showing volts it should also be showing capacity in %age. If you received the wrong thing it's not the "bloody electrics" but the bloody nit who packed and sent it that's at fault. Before you send it back check the below😉 Send me a photo of the Checker you have and with your battery plugged in so I can see what's happening on the display. Otherwise we are all poking about in the dark (Are we back to Jules and his friend Sandy😉😲) The link I sent you was for a checker exactly the same as mine except for the labelling! As you can see in my photo, properly connected it shows the terminal voltage and the remaining capacity (charge level) of the battery pack. Forget the Nixx (=2 Ni possibilities) display, that just means 'It ain't a LiXX' (3 Li- pissibolities). Attached photo shows a brand new 4 cell NiMh RX pack 4.8V (Nominal) connected to one of my Checkers. As you can see the voltage shown is 5.19V, according to the popular 'folklore' that would seem to indicate FULL charge. Unfortunately not🤔 Capacity indication is 45% which is normal for brand new batteries in storage and transit. Explanation thereof - see above! RE: " If it can do LiPos, why not the relatively simpler NiMhs?" a) the LiPo pack has a different chemistry and construction which requires different input circuitry on the checker, b) LiPos need balancing and are fitted with Balancer Plugs which connect to the multipin connectors on the checker. Each pin connects to one cell of the LiPo so that they can be monitored individually. LiPo chargers use this to balance the cells to within 0.01V (100mV) or less by adjusting the charge / discharge currents to each cell. The checkers use this to show you the individual cell voltages and charge states. A big difference, i.e.lower V and capacity, indicates cells with faults, e.g. higher internal resistance, or a discharged pack which needs charging and balancing. NiMh packs don't usually have this facility to measure individual cells. They are thus connected to a separate input on the checker which can then only show total pack terminal voltage and capacity. BTW: if you can get it passed 'THE Management' store your battery packs in the fridge😲 The 'coolth' slows down the rate of self discharge, which is a function of the battery internal resistance, which reduces slightly with reduced temperature😉 Enough for now, back to stripping my PTB for it's Midlife Refit! Cheers, Doug 😎 PS Martin: Just saw your post about another RX. Why the hell not buy a Spektrum designed Rx guaranteed to work with their TX? Or better still; flog the Spektrum and get a nice simple Turnigy set as above, also recommended by Ron, albeit the 9 ch version. All this frigging about with 'claimed compatible' bits and pieces just wastes money and time, fogs the issue and don't prove nutt'n!

Sprinkles by Commodore-H Sub-Lieutenant   Posted: 1 year ago
Sprinkles, a scratch built, U.S. Coast Guard PWB (patrol boat waterways) is just about done. Operating features include; working running and searchlight, rotating radar and blue emergency beacon. Water monitor on cabin roof can traverse and squirt water 10-15 feet. Bending tubing for the water monitor was difficult, it is actually a composite of several types. Nozzle was made on Unimat. Pump is a Sig "gas passer" Propulsion is from two 600 size motors geared 2:1 with 9.6V Nimh and 3 blade 45mm Graupner props

Crash Tender Shaft Tube Poistion by neilmc Commander   Posted: 1 year ago
Hi To you all thank you for the continued advice it is making life so much easier and I do like it when the thinking is done by experts. Paul The disc idea is an absolute bonus and will be using it for sure as it takes away the need for continued measurements. Dave The water scoop is going as like you and Doug say I don't need it no working monitors for me, just a working boat would be good. I'll be using measurements given to achieve shaft positioning as at the moment I have a 2 blade prop which I think is 30mm diameter so disc to suit will be used. Doug I like KISS it's worked for me loads of times in the past but I can't help buying shining things 😁😁😁 The shim idea on the prop tube is a good one but may still go for a support even though not needed it shines 🤣🤣🤣🤣. But it may still go back to the filler piece as all depends on how difficult it is to fit the A frame support. I purchased one at 8mm for the tube and not 4mm for the shaft. I'm looking forward to the weekend to get started and even set an alarm for an early start which is unusual for me. Im off to HMS Alliance as I do volunteer guiding there otherwise Id be starting now. Will keep you all posted hopefully with good news and no more questions - well on this bit anyway 🤣🤣

Conrad REELY, Flysky iA6, FS iS6, Turnigy HT6 !! by rolfman2000 Fleet Admiral!   Posted: 1 year ago
Most of the companies you have mentioned tend to rebadge third party suppliers hardware, and put their own firmware on it. Flysky and Turnigy normally won't work together, but, if you install Turnigy with Turnigy, or Flysky with Flysky, it will work. I have successfully "updated" Turnigy receivers with Flysky firmware updates to enable me to use them with my Flysky Transmitter. My next job is to hack my Flysky GT3-B to increase to 8 channels and ppm transmission, so I can install an 8 channel receiver on my 46" fire tender (sound, directional working fire monitors, etc). Hopefully doing it sometime next week. Progress reports as(or if) I make any 😨 Best wishes, Dave W 😊

Patriot by GARTH Admiral   Posted: 1 year ago
[Score: 6/10] 27"/1200g Patriot Capable of 4mph and a runtime of 60mins Direct Drive Powered by NiMH (7.2v) 3Amp/h Batteries - Comments: Midwest kit with working monitor I use a Sonic Mark X pump for the water sprayer Kids love to get wet but mothers don't !

Sprinkles by Commodore-H Sub-Lieutenant   Posted: 2 years ago
[Score: 10/10] 32" Sprinkles Twin Propellors (3 Blade 35mm) Geared to a electrofly 600 (3 Blade) Powered by NiMH (9.6v) Batteries Controlled Through mtronics ESC - Comments: Latest boat still under construction is Coast Guard PWB. There was a kit at one time but mine is scratch built. When finished it will feature working; running lights, searchlight and rotating beacon as well as operating water monitor and radar.

The fire monitors by robbob Fleet Admiral!   Posted: 2 years ago
Hi Allenrod. Perhaps if I ever do a refit on this model I might consider working fire monitors but as it was never part of my original plan it would be very difficult to incorporate now. Besides, I have had my brother doing a little bit more brass turning for me as you will soon see in some forthcoming posts.😉 Rob.

The fire monitors by allenrod Sub-Lieutenant   Posted: 2 years ago
Hi Rob, They look great your attention to detail is amazing, with this in mind I wonder if you had considered working fire monitors?, from one of your last posts I seem to remember your brother is good with a lathe, keep up the good work it is so interesting, I hope one day to have a go at this build when SWMBO decides to release a bit of cash !!!! Thanks for a great blog with great ideas, Allen R

Aerokits Fast Patrol Boat by jelley_baby Captain   Posted: 2 years ago
Hi, it's not a proper monitor on the cabin roof, but the spray nozzle from an air freshener the type that are battery powered and spray one burst every 15 minutes. I suppose that you could attach a small pipe to it and make it into a working monitor if you wanted too. Hope that this helps Graham.👍

Tug 'DHB Dauntless' by barnet Petty Officer   Posted: 2 years ago
Scratch Built 1:32 scale Dover Harbour Board Tug, DHB Doughty. The main hull is a standard Damen hull purchased from Mobile Marine Models, see their website for Portgarth. the hull is fitted with 2 x T12 Motors for the main propulsion,2 x 60 degree kort nozzles for steering, with 2 x purpose made brass props. Also fitted is a 12v Graupner water pump for the working fire monitor and Fwd spray bar, 2 x Mtronks 15 amp ESC's, Futaba steering servo and Futaba 40 MHz Receiver. Approx Dimensions including fendering Loa 41" Beam 14"

Working fire monitor by Peter47 Commander   Posted: 2 years ago
Tidied up your Photo Dragon, hope it helps. Was surprised when I downloaded all files in your 10th Nov Response, to find my HMS Duke of York model was featured in File 1930 :-)

Working fire monitor by dragon Admiral   Posted: 2 years ago
Your welcome take care

Working fire monitor by akelatheleader Petty Officer   Posted: 2 years ago
Thanks for helping, have found that you need extra parts to make it rotate. Have got them from cornwall model boats.

Shell Pioneer by marlina2 Chief Petty Officer   Posted: 2 years ago
[Score: 5/10] 31" Shell Pioneer Twin Propellors (4 Blade 35mm) Direct Drive to a 2x MFA940051LN (4 Blade) Powered by LiPoly (7.4v) 4Amp/h Batteries Controlled Through 3xViper 15A (5Amps) ESC - Comments: This is my first working RC build but here goes. A bit vauqe about the fiqures because we are still on the slipway. It is scratch built from the Phil Thomas drawing "Shell Pioneer" Twin prop with Kort nozzle steering, bow thruster, working fire monitors and lights. Throtle & steering control via Action Electronics P40E mixer. 2x 2S25C4000mA lipoly's. 6 Ch radio (4 used). draws around 4.5A hope to get 30min run time minimum. Third ESC for bow thruster.

Fairplay by Aquaflite Lieutenant   Posted: 3 years ago
Modified HegI Fairplay V tug built by My late Father. Mods include bigger 65mm Prop in a brass kort nozzle, working fire monitors, lights, radar, engine sound and grappling hooks to rescue nitro boats. Built 1980-81.