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Winter Project : R/C Air Car

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Winter Project : R/C Air Car

Post  NEW222 on Sun Jan 14, 2018 5:04 pm

So, this winter I was wanting a new project. So, I stumbled across the RCM R/C Air Car. My dad had some scrap wood laying around that I took borrowed to make this. I wanted it as close to original as possible. I somehow even had a set of the 90 degree bellcranks! 72mHz radio, the only upgrade to modern is the use of a 7.4V lipo battery for power. As for engine, I had a tempermental MDS 40 laying around with throttling issues. But, as long as I can get it running and even have a little bit of throttle, I will be happy. I had a couple of very knowledgable people look at it and it was a poor throttling engine, and is why I pulled it from my airboat and replaced it. After buying it, I found the poor reviews on it, but when it ran, it did run very strong and well, just the throttling sucked! Anyways, I painted it with latex interior, 2 coats of polycrylic clear followed by a final coat of rattle can Minwax Polyurethane Oil Based clear. Without further ado.....


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Re: Winter Project : R/C Air Car

Post  NEW222 on Sun Jan 14, 2018 5:04 pm

Plans are available online, but if anyone wants a copy, I am also willing to send them to you.
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Re: Winter Project : R/C Air Car

Post  MauricioB on Sun Jan 14, 2018 11:29 pm

A nice project to entertain yourself! If you have a video it would be great!

About 30 years ago I made this car on air, I had material available, so I started working and I managed to stay for a long time.
He had steering on the two front wheels.
It was equipped with a potor OS .25 FP and servos futaba.

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Re: Winter Project : R/C Air Car

Post  NEW222 on Mon Jan 15, 2018 6:22 pm

Wow MauricioB. That looks awesome. At least yours looked like an actual car, unlike mine. Unfortunately due to weather, I will not be running it anytime soon. But once I get it going, if I get it going, I will get some video of it if someone is around. Have a great day my friend.
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Re: Winter Project : R/C Air Car

Post  roddie on Mon Jan 15, 2018 7:10 pm




I like it!! Why couldn't you swap-out the front wheel for a metal blade.. and take it out on a frozen pond/lake? Eyebrows
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Re: Winter Project : R/C Air Car

Post  MauricioB on Mon Jan 15, 2018 9:05 pm

NEW222 wrote:Wow MauricioB. That looks awesome. At least yours looked like an actual car, unlike mine. Unfortunately due to weather, I will not be running it anytime soon. But once I get it going, if I get it going, I will get some video of it if someone is around. Have a great day my friend.

Thumbs Up Thanks buddy, that auto - air was very fast, it made it work in cement and almost "flew", I miss a brake system, but if today I decided a new project, it would be similar to this one, just that I would place a cage for the bumps and protection of the propeller, in addition to a rear brake. If I think I was about 14 or 15 years old when I did it, you can say "I achieve the objectives" Thumbs Up
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Re: Winter Project : R/C Air Car

Post  NEW222 on Mon Jan 15, 2018 9:48 pm

roddie wrote:


I like it!! Why couldn't you swap-out the front wheel for a metal blade.. and take it out on a frozen pond/lake? Eyebrows

Thanks roddie for the compliments. I really would like to do that, but with the engine running the way it did last, I will require quite a bit of bench running before setting this thing free. If I had a better reliable engine, I would do it, but I do not have anything reliable at the moment. The only other rc engine I got at the moment is parked for the winter at the cottage on my airboat. But, next year should be different. As well, I do not have much time running nitro rc engines (except Cox) and am not sure of running and tuning in extreme temperatures.
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Re: Winter Project : R/C Air Car

Post  Jason_WI on Mon Jan 15, 2018 9:58 pm

Google search of MDS problems points to the carb. It’s possible a Perry replacement carb could fix the issue.

https://www.rcgroups.com/forums/showthread.php?1576239-MDS-40-carburator-problems
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Re: Winter Project : R/C Air Car

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