Hull reinforcement

[GIESDOG]

I have SV torn down to bare hull looking to CF it for reinforcement, not sure whether to use 30 min epoxy or finishing resin to lay CF ...any help??

[domwilson]

You may want to try a longer curing epoxy. 30 min. epoxy kind of has a "rubbery" feel when it cures. But that could be related to brand.

[wizard122]

Hi i like to use Z-Poxy works great! http://www3.towerhobbies.com/cgi-bin...?&I=LXCX57&P=0 good luck

[AndyKunz]

Dom,

If you have rubbery epoxy, that is often caused by a poor mixture proportions, age, or humidity.

Andy

[GIESDOG]

Good info, should i use the same epoxy to lay the CF and attach the motor mounts to hull?

[Grimracer]

Just so you know.. the boat is laid up using vinyl ester resin

[GIESDOG]

Is that similar to epoxy resin? I have the Z poxy 30 min formula and the Z poxy finishing resin. Thinking about laying the CF with 30 min formula then going over the top with finishing resin. Then using CA glue to stick the motor mounts down and running bead of epoxy in the corners of the hull and motor mount to help hold in place. Does that make any sense?

[wizard122]

I used Z-Poxy 30 min all through out my hull I covered every thing with it check out my posts I have great photos of my set up. http://forums.offshoreelectrics.com/...ad.php?t=11601
I would use the epoxy not ca on the rails maybe just to line up and hold in place but reinforce with glass and epoxy good luck post some photos of your build would love to see them. check out the video http://forums.offshoreelectrics.com/...ad.php?t=12503

[GIESDOG]

Here is what I've done so far. This was a new SV, hasn't even seen the water yet. Not sure what possesed me to rip it apart. I was only going to remove the hardware and seal it with some silicon, but I noticed the receiver tray was cracked so I decided to pull it out then figured I might as well reinforce the hull while I had everything out. Left the transom wood in though. I used a dremmel with a cutting wheel to score the base of the motor mounts then broke them loose and sanded everything nice and smooth. Just waiting for CF and the rest of the hardware.
IMG_3671.jpg

IMG_3673.jpg

[wizard122]

Can't wait to see the rest. Kintec has a real nice servo tray and mount. worth the 12 bucks I made my own the uncut wood was 6 bucks any way have fun.

[GIESDOG]

Alright it has been several days finally had a chance to work on this thing. I used Z Poxy finishing resin to lay the CF it worked great. The edges of the CF cloth were a pain. Did not end up putting any on the transom since I left the wood in there. Decided to make motor stringers and servo tray from lexan. It was a quastionable call, lexan can be brittle at times. My experience with it has always been good. It is flexible and strong. Time will tell if it holds up to a crash. But at $3 for an 8" x 10" sheet 1/8" cant beat the price. much stronger than the wood that it came with. I snapped the old stringers with two fingers, I could bend the new ones about 45 degrees and nothing. Tried tightning screws tho the max in this stuff and never cracked. There is a reason they use it for bulletproof glass. Anyway here are some pics. There is probably some considerable weight added in the rear from all the epoxy, maybe it will help handling?? COG is 8.5 in.

[wizard122]

Your boat looks awsome. Nice job please post som vids.

[BHChieftain]

I bet the handling will be better-- I think the SV is too light, esp. on lipos (that would be known as a "high class problem"...). My friend's SV bounces all over the place, my son's Fastech is rock solid. Getting some weight towards the nose would be even better...

-Chief

[GIESDOG]

I am hoping to get it in the water this week. I've got two 4500mah 7 cells and 4 cell receiver pack. Hope to get a decent run in. Anyone know a good total weight for this hull to operate at? Just worried I could be too heavy. Maybe a different prop better for low end, I am not real worried about top speed as much as I am handling and longevity.

[Diesel6401]

Man o Man does that look good! I like the servo location in the lexan. I have had good luck with lexan as well, I made some fog light lens out of it on my SUV and haven't had a problem with it even with rocks and debris from the road kicking up at it which is what caused my stock fog lights to crack. $100 for for fog lights on fabricate new lens with lexan. I chose B, I think it will hold up just fine.