Jae mini sprint carbon fiber wrap????

[crudeau]

So I ordered a mini sprint kit non prebuilt. I also have z poxy 30 and finish. I was thinking of wrapping the sponsons in lightweight carbon fiber and painting the hull. It would be my first build and first time with carbon fiber. Just wondering if you think it's too much weight and if tge finish epoxy would work with tge carbon fiber. I was thinking of getting the carbon fiber tape.

[crudeau]

I think I may just try to put the carbon fiber in the top or sides of the sponsons and paint tge rest. It's more just for tge look. Though I was thinking of using it on the rear to help stiffen up the transom inside. So more of my question is can I get carbon tape and stick it on the wood prior to the finishing epoxy. And use the finishing epoxy as the resin

[martin]

Yep you can use carbon tape on the rear of the tub to strengthen the wood where the rudder etc are bolted, this is what finishing resin is intended for as well as painting on the wood. You might want to put a couple of layers of carbon on to get a bit more thickness to it or you can stick a piece of carbon sheet on the rear. Go steady with how much carbon you use in other areas though as you are making the boat heavier which will affect performance if you go to heavy.

[crudeau]

I will have to evaluated ones its built. What's the recommended paint for hulls? Or does pretty much anything work. Since its epoxy my gut says to use enamel based like model paint

[siberianhusky]

If using spray cans I use the dupli color line, including primer. I use 2 part auto urethane for a clear coat, others use spray clear with no problems.
I've never used Krylon myself, buy my running buddy did on his SV and has issues with it crinkling, he followed the directions exactly.
Used plain old home depot white spray enamel on a hydro that has vinyl graphics, it went on very nice and has held up very well.
99% of the paint job is in the prep work though.
I've used model paint to do trim and windows etc, never tried painting an entire boat with it though.
Basically anything you're comfortable with will work, thought about some kind of stain and clear coat on my new Jae21.

[crudeau]

So I finally got my work bench built and am still waiting on some stuff before I start building. But I was wondering if maybe I should just not use the wood extension and use the aluminum mount that comes with the rudder. Seems easier to wrap tge inside and outside of the hull. Seems it would be stronger too. Any thoughts there? Or is it too much weight

[martin]

I dont use the wooden mount i use the alloy bracket bolted through the transome, from memory you have to shorten the angle bracket a bit so as to get the rudder in the same place as when using the wood bracket. I also add a flat alloy doubler bracket that bolts through the rudder bracket & runs along the side of the tub with 2 bolts going into the tub side.

[crudeau]

Sounds like exactly what I am looking to do. Is that a top secret mod or can pic or two be posted? Lol

[martin]

I will try & post a couple of pics tomorrow.

[martin]

DSCF0431.jpgDSCF0432.jpgPics as promised.

[pyroM!KE]

[ATTACH=CONFIG]81822[/ATTACH][ATTACH=CONFIG]81823[/ATTACH]Pics as promised.

Id like to see pics of your entire setup...Im currently building one with a 3500 on 3s....

[martin]

DSCF0434.jpgDSCF0436.jpg
DSCF0437.jpg

[pyroM!KE]

Nice!Thanks for the pis man! What is your motor esc setup..Also I see you didnt bolt the sponsons the the CF tubes..What prop are you running?

[martin]

Ive got 3 Leopard motors to try, 2845-4430kv on 3s, 2850-4400kv on 3s & 2860-3400kv. Prop on their is an Octura 1630 back cut but have run x435 detonqued & back cut when i had the outrunner motor fitted. Ill probably also try 1732 prop, esc is a T120a.

[eric_laermans]

@martin: it seems your JAE is a 21FE, not the Mini-Sprint(?). In that case the 2860 is certainly not too big/ heavy. In a rigger of the same size I used the 1535Lehner (2855) keeping the LiPo weight under 280gr, removing everything redundant to keep the weight low. Nice built though... like the hatch :-).