motoxxx996

My Feedback: (3)

Here it is my very first attempt at a r/c boat of any kind. It took me about three weeks to build working on it in the evenings after work. As you can see she is built from a sign found in a dumpster at a gas station. The rest was made out of old airplane parts that I have accumulated over the years in the hobby. It cost about $20 out of pocket. I looked at all the plans and pics on this site and started building. I had no real idea what I was doing as far as weight and balance goes so I took swag at it and it seems to have worked.
I took it out to a creek with a pooled up area, it was not real big but it was big enough to run it and it worked very well. I did put larger rudders on it to get better turning that my original plan.
It's powered by a Magnum .61, standard airtronics servos, and a HPI receiver and radio.

89ram

neat boat! where'd your plans come from? what did you use for glue on that coroplast?

motoxxx996

My Feedback: (3)

I used gorrilla glue. I flashed and sanded all the places that were to be glued. I also used shoe goo to water tight a few places. As for the plans, I looked at pictures and sizes of other boats online and went with the plans inside my head. I have never seen a r/c airboat in person before this one.

boatman1

Looks great , What the specs on it ?

asmithnc

Great SPAB build. It the best one to date that I have seen. Now you need to get use some videos.

bign

YES very nice very nice, now like Andy said " where are those Videos? " lol

motoxxx996

My Feedback: (3)

I will try to get a video of it in action this weekend. So far I have been testing it alone, so I will find a camera man and put up the video for you guys.Btw, thanks for the nice comments Oh ya I will measure it and put up the specs soon.

bign

Weight to bro , id like to know how much it weighs unless you have already posted the weight, ill check, lol.

jasperrc

Nice job on the build!

Looking forward to vids when you can.

Selph-Inflicted

Nice build!!!

You and Jasper build the best coroplast boats on the internet. I can't wait to see it in action!!
You know.....once you build one, your gonna build another.

Mr Cajun Gator

Nice job.

motoxxx996

My Feedback: (3)

The hull is 41 1/2" long, 18 1/2" wide, 2 3/4" deep at the rear and the nose sits 4" tall. It weighs 7 pounds 15 ounces! kind of porky I suppose. The bottom has no channels as of now, it ran great on grass that way. As for building the best on the net I think you have to do more than luck into one build to hold that title, but I'm glad you like it though. I will wait and see how the next build goes before I break my arm patting myself on the back.

saleens7

how did you get the coro to curve into the front and the sides to stay up w/ no support.

also, what was the thickness of the coro?

2mm, 4mm, none of the above??

motoxxx996

My Feedback: (3)

Its all 4mm coro. To get the curve for the front I trimmed the flutes on the top side for it to bend, then cut kind of v shaped notches on the sides for it to curve in then glued and clamped it in position. I have scratch built a few planes out of coro so I had some idea how to work with the stuff.

motoxxx996

My Feedback: (3)

Ok I got a video of it. I'm still new to air boat driving so cut me some slack on the driving skills [&:] http://s81.photobucket.com/albums/j2...t=136_3660.flv

bign

Nice build !!! She turns great, Looks like she is a lil heavy in the Bow though, might be the reason for the lack of speed. looks like she is trying to Plow a little, have you tride to adjust the AOA of her to see if it helps her plane out a lil better ?

motoxxx996

My Feedback: (3)

I thought about trying that but I was not sure if it was that or just the fact that I have a tough time keeping it straight and most of the time I'm below 1/4 throttle. When I do keep it strait the bow comes up. Would adjusting the pitch of the motor change the AOA or would that make it just want to flip over at speed?

motoxxx996

My Feedback: (3)

I forgot to mention too that my glow starter fell into my prop and broke it before this run so the only prop I had with me was a 11-6, so it was a little under proped in the video. But I'm open to trying a more aggressive AOA.

bign

If you tilt the nose of the engine down a bit it will lift the bow up a bit. If your having trouble steering it or keeping it straight, if could just be as simple as having to much pressure on the bow. it could be other things also but i would start with the AOA. just slip a washer or 2 under the back mounting bolts of your engine this will be the easiest way i can think of to make the adjustment. I would just do it a lil at a time, it doesnt take much. Your right the prop may have had something to do with it also , but from what i can see in the vid it looks to be plowing a bit. I would give it a try and see what happens, good luck bro, and keep us posted. Again nice build!!!

motoxxx996

My Feedback: (3)

Sounds good I will add a washer, bring some extras and try it out, a little test and tune session. I will try to get a video of it after so you can see what you think. Thanks for the tips!

bign

Hope it helps you out bro. Im not an expert or anything im just passing along information that was givin to me when i had the same kind of problems, kinda paying it forward , lol. GOOD LUCK hope the ol girl works for ya. keep us posted