Thundercat 31 conversion build

[Bullwink]

Thanks Doby! Your pics help tremendously.

[Bullwink]

OOPS! I was wrong. The motor I have in my Shockwave 36 is a TACON 4074 2000KV (A Leopard Knock off I think) not a 3640. The 4074 is what I will be putting in the Thundercat.

[Brushless55]

[ATTACH=CONFIG]67012[/ATTACH][ATTACH=CONFIG]67013[/ATTACH][ATTACH=CONFIG]67014[/ATTACH][ATTACH=CONFIG]67015[/ATTACH][ATTACH=CONFIG]67016[/ATTACH]Some Pics;

Wow, bad ass sub hatch there Doby!
how do you like the way this hull handles?

[Bullwink]

Well it is almost ready! I just have to program the Swordfish 240, waterproof and mount it, finish installing the water tubes, put the receiver in a balloon and mount and we are off! Here are some pics. I made a boat stand today for it. Installed the Tacon 4074. I put clear hard plastic windows over the air ducts and sealed the gas exhaust holes. Although I will rely on the subhatch for waterproofing, I thought that air flowing through the hatch might cause lift and/or drag since the exit holes are smaller the the intake holes. I decided to just waterproof the esc and mount it with double sided tape rather than enclosing it in a waterproof tray.

I plan on running it a couple of times then I will remove all the hardware and stickers, fix any blemishes and holes and repaint.

Guys, everyone on this forum has been so helpful to this newbie. I am getting my SV27 ready for the Winter Warmup in Scottsdale so watch out!

Have a great 2012!

Kerry

TC31 ARR!.jpgExhaust holes filled & Epoxied.jpgClear plastic on Air Ducts.jpgPlexiglass Sub Hatch.jpgFinal Layout.jpg

[Bullwink]

Waterproofing Sword 240

Question: Should I cut the stock plastic covering off of the ESC, coat everything in liquid tape and then spray it with plastic dip or, should I leave the stock plastic on and just try to waterproof the exposed ends with liquid tape and black silicon caulk?

[Diamond Dave]

I have waterproofed a few things for my surface vehicles. Are you referring to "Plasti-Dip"?

If you are using Plasti-Dip, I would just dip the whole thing, grab a few screwdrivers or skewers and hang it to dry over some paper towels or a rag you can toss. Let it dry for a day or two, Redip if needed, and let dry again.

Let it dry without touching for atleast 24-30 hours. I also use something called silicone conformal coating on the electronics first. I disassemble the servo, ESC, or whatever you are trying to protect from water and spray it and let it dry thoroughly.

http://www.plastidip.com/

http://www.mgchemicals.com/products/422a.html

Hope that helps. I would like to contribute more to this site, as I am going to need a ton of help when I convert my Thundercat.

[Bullwink]

Thanks. Yes it does.

[Bullwink]

Woo Hoo!. The Thundercat 31 is done! Ready for the water. My goals for the first day running are 1: Nothing blows up 2: See Number 1.

I will take vids Saturday and post.IMG_0786.jpg

[Doby]

If you plan on running the batteries in each of the sponsons right next to the motor, it will be fairly bow heavy and squirley. Try one next to the motor and the other in the back. Both batteries next to the motor are OK if the winds really blowing hard. If the conditions are dead calm, put them both in the back and it will air out nicely.

[Bullwink]

Thanks for the tip Doby. BTW, how much does your's weigh with batteries? With 2x4s1P, mine weighs 9.5 lbs, which seems like a lot.

[Doby]

Its a 6.8Lb porker...without batteries.

[Bullwink]

OK. Good. Mine is 7 lbs w/o batteries so I am only a little fat.

[Bullwink]

Well, I finally was able to run her today. Tacon 4074, Sword240, Brand New Gens Ace, 4S2P 5000mah 40C (2 4S Parallel), Grim Racer 42x53. Motor connections (& possibly motor), fried after 2 1/2minutes. Had my GPS in and it only got to 33mph. Does not appear to be running too wet. Is a 10lb boat too much for the Tacon 4074?. Anyway, I will put my Castle/NEU 1515 1Y in next. BTW, it cornered perfectly, very nice. I am going to enjoy this boat I think.

[phazewun]

im having some problems locating a motor mount to convert my thundercat anyone willing to help ?

[lomdel]

im having some problems locating a motor mount to convert my thundercat anyone willing to help ?

See the mount in post #188 above. Standard OSE motor mount epoxied on strengthened floor. That would be the easier option. Other option would be a custom-designed, custom-made aluminium stringer-mounted clamp-type mount. They don't exist in the market out there (yet) and would be a once-off...