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>> Home > Tags > rope

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Thunder Tiger Avanti by boaty Admiral   Posted: 3 days ago
Has anyone done any significant modifications to a Thunder Tiger Avanti fast electric? I have one and all I have done is to replace the nylon prop with a metal one thus there is very little increase in performance and the reason for doing this was due to the nylon prop throwing a blade after striking an underwater object. Prestwich Model Boats have a suitable replacement motor complete with a better ESC than the existing Ace one and their system can handle up to 4S Lipos instead of the stock set up of 3s . I have located a source of a 4S Lipo which length and width is same as my 3S one but the height is a little more and it will fit into the battery box. To trim it out properly I would have to add some ballast to the starboard side. Due to the electrics including the battery all being in a small watertight box at the stern there is not a great amount of scope for a lot of mods. Boaty😁

HMS BRAVE BORDERER by RHBaker Fleet Admiral!   Posted: 9 days ago
Back to the build. Next milestone, to complete the superstructure and engine covers. The superstructure is essentially a cowl that supports the open bridge and serves as the air intake for the gas turbines. The engine covers fit into the rear of it. The superstructure is full of curves and will be interesting to make. Still trying to save weight, decided to make it out of glassfibre. Rather than first make a plug then a female mould and finally the cowl, wanted to try the technique of making a plug out of styrene foam sheet, then covering it in a glass fibre matt. Once the glass fibre is set, the foam is dissolved out using a solvent and the cowl remains – Inshallah! To ensure the foam did not react to the glass fibre resin, painted the finished cowl with enamel paint before sticking the matt down. See pictures. What a mess! The resin had crept under the paint and into the foam dissolving it. When the resin dried the plug had shrunk slightly and had the surface finish of a quarry. First thought was to hurl it and start again, this time in wood. On second thoughts, wondered if the plug could still be used. Decided to build it up with wood filler and from it make a female mould, as originally intended. The cowl would then be made from the mould. Built the damaged plug up and sanded it smooth. As the plug would be covered in fibreglass, the surface finish was not critical. Brushed a coat of fibreglass on the plug and, after drying filled any defects with glaze putty and sanded smooth. Once the finish and dimensions were satisfactory, applied a thicker coat of glass fibre to the plug. This was again smoothed down, waxed with carnauba polish and then covered in mould release. From it the cowl was made. Picture shows plug, mould and cowl placed side by each. The cowl requires reinforcement; the fittings and various mountings then adding before installing. A trial installation showed that it fitted properly the deck and was accurate. A lesson for the next time is to make the plug and mould much deeper than the finished item. That will allow any rough edges, on either the mould or the component, to be trimmed off leaving a smooth fibreglass edge.

Ship rudders by RNinMunich Fleet Admiral!   Posted: 15 days ago
Mornin' Toby, I'm back😁 Pardon the delay, just finished tidying up the wiring and final running tests on Colin's Taycol Supermarine motor and converter board - to make it run off a standard brushed ESC! The rivets look great👍 and the last pic was much better as well😊 Soooo many rivets 😲 guess you have to do them in batches, and then go pull up a tree or something, or you'd go doolally 😡 And I thought I was patient doing all the portholes and stanchions on my 4' 6" 1936 destroyer - that was ONLY hundreds! Rivets? Didn't even contemplate that!! I think you should continue this in a proper Build Blog - there's lotsa good stuff you're doing here👍 And at the end you can make a pdf file of the whole story with just a few clicks😉 Be a nice memento👍 Look forward to the Launch Report. During my career I attended the launches of several naval ships I had worked on,designing the COMMS systems. The funniest one was a glass fibre minehunter at the Intermarine yard in Italy near La Spezia. The ship was still in dry dock, like a huge bath. They turned on the 'taps' and slowly up came the ship! Keep up the good work, cheers, Doug 😎 BTW; were you sitting on the saw to help keep awake? 😁😁

My other hobby by Hellmut1956 Sub-Lieutenant   Posted: 16 days ago
Hi. Mi private pilots license also does not include night flying. But interesting is to consider when they define what is included. When having a certain number of instructed night flights you are entitled to fly in the vicinity of an airport. Vicinity of an airport German definition is that you have to be able to see the traffic in the pattern of an airport. When I did my flight from San Jose, CA to Phoenix SkyHarbour, I was able to see the traffic being about 1.5 hours from the airport. The night definition is that the night begins 30 minutes after sunset. So was entitled to do this night approaches as you can see the traffic in the pattern, on a large airport like Sky Harbour, and in the Southwest of the USA from very far. But when doing these landing operations at a large international airport, shortly before touch-down you are flying into a black hole. Due to this on my first landing in Sky Harbour, I made an awful 3-point-landing making the plane jump 2 or 3 times. Fortunately, I was aware of how to react properly when this happens. The second special experience is when you are taxiing on the runway to get to its exit and report "runway vacated" in a small plane like a Cessna Cutlass the lights lose their structure. So I went to search for the yellow line on the left side of the runway until it curved into the exit. But this yellow line and the blue runway lights are hugely distant from each other so I had to focus my efforts to stay to the right of the blue lights but still being able to see the yellow line. Once I crossed the lines that mark that you are leaving the runway I could report back to the tower "runway vacated". My second-night landing was when I did try to fly to an airport next to the "Grand Canyon". As the report of the airport said expect gain or lose 40 knots of speed on final I decided not to land and flew back To Phoenix. What a wonderful experience. The landscape was already impressive on my flight to the Grand Canyon, but it was topped when I flew by night. First I was in contact with one center in charge while being above a certain altitude. Then this center passes you to one in charge below that altitude. Makes you feel like a professional pilot. Finally, this center did pass me to the tower of Sky Harbor. I was approaching from the north. Then, what controllers of large airports like they make you cross the airport midfield what ensures you stay away from the other traffic of the airport. You cannot imagine what a sight it is when you approach a large city like Phoenix by night. After he gave me its clear to land I was remembering my awful night landing earlier. When I did have the feeling that I was about to touch-down I did control the airplane so that all you felt on touch-down was the vibration of the wheels turning. A Geman friend of mine that was on the plane with me was so impressed that he said he would fly again with me at any time. One other fact I want to share is the importance to really dominate the phraseology of radio communication and what Americans call to know the system. On my first approach by night to Phoenix, I did confuse the last VOR with the ILS beacon. So when switching to what I thought to be the last VOR the needle got full to the right and stayed there. So I did a report I was not able to tune in the VOR and so tower did give me instructions for the further approach. When you fly in from the west you fly over a mountain full of antennas and the red lights on top of it. I felt very good being routed by the tower. Those of you familiar with night-flight and how to find the location of the airport know the rule of the black spot within the lights of the city is where the airport is. Well, Sky Harbor has the terminal building between its 2 runways and so Sky Harbor does not look like a black spot. So when the tower asked me if I had field in sight I did respond negative a couple of times until he reported that I was on the 45 for the runway. Then I finally saw the airport. Here is something that is the consequence of good radio training. My instructor always said to report negative until you are really enabled to say affirm. So Tower knows when you are really able to report affirm. Do not be shy, it is your and others life! The second time on that approach was when tower gave me the instruction: 3-60 to the right until further advice! My teacher played the role of the tower and one of the things he said to teach us the right behavior was to stay silent and fly as instructed until tower contacts you again. I do confess I had never done 3-60s neither by night nor during the day! So I put the plane into a standard curve, kept it there, watched my altitude and speed. Being so familiar with this instruction from the tower I felt "at home" and this being relaxed was very useful!

Carina by Hellmut1956 Sub-Lieutenant   Posted: 17 days ago
I am continuing to try to learn the way this forum is properly used. I want to publish here my photos of the construction of my sailboat Carina from scratch that I am publishing here. I will limit myself to photos that are useful to get a general view of the topics I am publishing

Carina by Hellmut1956 Sub-Lieutenant   Posted: 17 days ago
Trying to learn to use this forum properly I am publishing a video that shows an experiment I did to find out how fast the stepper motor could turn. I am using in my model of the sailboat Carina 2 stepper motors like the one shown in the video to work as a winch to control the position of the sails in a system solution where I am realizing this my own way to implement the sheets as shown on the original sailboat Endeavour. This requires my sheet control system to control the length of the sheet of the mainsail i.e. over a range of 8.3 meters. This requires the drum which is turned by the stepper motor to make 21 full turns. Details will be published in my report from scratch of building my Carina.

Thornycroft MTB by jbkiwi Commander   Posted: 22 days ago
Just converted this 40yr old twin brushless model (scratch built from a Vic Smeed plan) to a proper independent twin system plus a sound unit. Started off with a 70s Futaba ESC on 27mhz, then on FM, then replaced with an Electronize unit on FM, then to 2.4 and now on 2.4 with twin ESCs and converted TGY S6 (twin throttles). Maneuvers a lot better and makes a better noise.

HMS BRAVE BORDERER by RHBaker Fleet Admiral!   Posted: 22 days ago
Finally the new brass propellers arrived, delayed about a month in one of Canada's regular postal disruptions. After minor modifications to the boss profile (the brass are more streamlined and thus longer than nylon) to give clearance with the rudder leading edges, they were easily installed. Could now refit the electrical equipment previously removed to get access to the shaft couplings. Inevitably took the opportunity to make “improvements”, so then could not get anything to work! After much frustration determined the problem was not from my improvements, but from the cheap and nasty slide switches provided with ESCs. These must have got damp during the test runs and corroded internally. Suggest when using these switches they be consigned to the garbage and replaced with proper toggle ones. Had decided to use the centre brushed motor/propeller for manoeuvring and low speed operation and then the outer brushless for high speed. Brushless ESCs do not modulate smoothly and motor operation is erratic. This was particularly evident when going from forward to reverse and vice versa. Using a lever control Tx, it was also easy to inadvertently operate the brushless control along with the brushed making the model response unpredictable. After some thinking, decided to insert a small relay into each of the white signal wires for the brushless motor ESCs. These relays would be controlled by a RC switch operated by another channel on the Rx. Hoping this way the brushless motors could be switched on and off whenever desired. The two relays would retain the ESCs as separate circuits and avoid any interference between them. The idea worked, can now operate the brushed motor confidently knowing the brushless will not be inadvertently triggered. This means low speed manoeuvers can be gently undertaken using the modulation and control ability of the brushless motors and, by selecting the auxiliary control, can add the high speed capability of the brushless. Am also hoping that when the Li-Pos trigger the low voltage cut-outs in the ESCs, this will retain a “get-home” facility on the brushed motor as that ESC operates independently. Much to look forward to when next on the water.

new oscar by woody Chief Petty Officer   Posted: 25 days ago
no longer available from Harbor models given to me by Norm Rusinow oar propelled East Coats Dory

PS Waverley by petercbrown Lieutenant   Posted: 1 month ago
I hope you get properly compensated. What a nightmare😱!!

Ashes the scratch built Motor Torpedo Boat by Sakibian Sub-Lieutenant   Posted: 1 month ago
I found this hull at thingiverse last year. I printed the hull from a local shop and rest was handmade. Firstly I bought a 2426 4200kv brushless 2-3s which was too powerful and too heavy for the boat size. The length is 38cm. And the 30Amp esc was also too big for it's size. After that I tried small 180 brushed motor with 20A brushed esc w/brake. It was perfect (still it's heavy😂). The bridge and deck is made by 1.75mm pvc,torpedos are made of wooden pencil. Small battery space takes a 2s 500mah lipo. 30mm 3blade propeller. YouTube video link is here: https://youtu.be/KZdmZ8_Z0IE

Aldi excellent service by onetenor Fleet Admiral!   Posted: 1 month ago
I fixed the broken one easily. A wire broke where it entered the little pcb.Lifted the board to unsolder the stub of wire left in place and poked it out with a cocktail stick. The wire still had enough exposed wire to pop through the hole and a quick dab with the soldering iron and it wa fixed. Getting the case closed properly was a pig but fixed now. Replacement arrived today too. Woo Hoo.👍🤓 P.S. what does this represent😤?

Search light by RNinMunich Fleet Admiral!   Posted: 1 month ago
A small tip and word to the wise Michael, When I take shots for posting I first load 'em to the PC and view in full size before going any further. If there's anything wrong I can reshoot before carrying on, either with the assembly or the post. Doesn't always work out that way, depends on how carried away I am with the job in hand 😁 'The word' 😉If you can try to get the photos in proper relation to the horizontal and vertical. You're making some of us seasick! 🤐😱😲 Nevertheless, very nice work, Hat Off Sir 👍 The comment from Robbob (King of the Crash Tenders) is praise indeed. I once spent an entire afternoon reading his astounding build blog and picking up tips. I just got 'hooked' 😊 Cheers, Doug 😎

BRAVE BORDERER - BRUSHLESS SUMMARY by RHBaker Fleet Admiral!   Posted: 1 month ago
The pump was installed to give positive water flow even when stationary. Felt this would ensure cooling under most conditions. The plumbing is quite torturous and suspected there might be a significant head drop in the circuit. With the wisdom of hindsight, probably overkill; the water scoop between propellers may prove adequate.

Spraying Again....... by MouldBuilder Admiral   Posted: 2 months ago
Really useful information here. I will take it all on board. I would like to know though if the primer red is the ideal colour for your top coat for antifouling, can it remain as primer only or is it necessary to go to a proper top coat paint. Thanks.🤓😊