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size length 34" beam 10.1/2"inchs photos to follow
cabin cruiser - Posted: 27th Feb 2017
This lady in church asked me if I could finish her dad,s boat, as am a aeromodeller thought I would have a go, having a spare skysport transmitter ,servos and things etc but when she brought it in was surprised how big it was. So first thing I was make a stand.that was a year ago now she says can you do it for this May. So the heat is on put it in my bath to see if its watertight ,there was some water in the forepeak area and the keel ply is split so intend to glue and clamp it . next job is the powertrain and control I have a skysport 4 40megahertz need a receiver for same a speed control, have brushed motor 5cm x35mm also need cristals for the radio gear , do have some servos if needed, any help and advice Thanks
Hi aeromodeller Welcome to the site. Sounds like a good project. Delaminated wood is not good so I hope your glue and clamps will fix the problem. Is the hull painted? It is usually best to strip back to the wood and cover with cloth and resin all over plus more resin on the inside to keep the water away from the wood. With your timescale this may not be an option, but you could possibly tissue cover the hull with sanding sealer/dope then repaint. Even a coat of dope on the inside will help. You will need a brushless ESC with reverse. If the propshaft is damaged or you can feel play in the bearings it may need replacing or new bearings fitted to the proptube. The rudder will need a servo and you should be good to go. Not sure of the price of crystals but you can buy 2.4Ghz cheap combo set for about £20 and even the short range will not be a problem for a model boat. A pic will allow more specific support for the model Dave
When you post in the Build Blog there is a button on the left that allows you to post pictures. You can upload several for each post but only one at a time. When the first pic has loaded just click the button again and upload the next. Dave
Well its an original Aerokits Sea Commander and in the timescale available I would forget about stripping off the paint or sealing the inside as it is probably covered with several coats of oil based paint. Sorry I believed you had a brushless motor but yours looks like a standard 550 brushed so will require a brushed ESC, a 15/20amp mtronic should suffice but any similar ESC will be OK. Unless you are intending to run for long periods or race the boat I would leave the watercooling, it's easy to add later if required. Can you photo the inside of the cabin where the motor sits also the outside area where the ply has delaminated. Is there a prop shaft? You need to make sure the shaft and bearings are OK. Looking forward to more pics Dave
Well there doesn't appear to be much water damage and the keel looks solid. Once glued it should paint up well and remain waterproof. The inside looks a bit gungy so I suggest you clean this thoroughly. The connector on the end of the shaft needs replacing with a modern Huco type coupling. Looks like the rudder is missing, if so your local model shop should have a replacement. Have you checked the propshaft for wear? From this era the shaft thread will likely be imperial. 35Mhz is reserved for aerial RC in the UK so not allowed for model boats or cars. Some 35/40Mhz receivers can work on both frequencies, so as long as you are using 40Mhz crystals and the range is Ok it may be possible. Dave
Thank you Dave for your help, one last question why size battery should I get , not keen on lipo,s as dont know what knowledge the lady has about batteries and lipo,s need very careful handling ,so was thinking of nimh. Peter
Hi I avoided mentioning LiPo as you are handing the completed model to possibly a novice. NiMh would be my choice and depending on the budget I would get the highest amp and voltage you can manage. There may be a min voltage requirement depending on the ESC you choose. She will also need a charger for the NiMh and possibly the Tx/Rx if no BEC on the ESC. Sounds like you will achieve your goal and I am sure the lady concerned will be well pleased. Dave