Exceed Racing Flowmaster Catamaran 650mm build help.

[Brushless55]

Yes, it is very nice for the price. Sweet little hull, just waiting to buy some more Systems Three epoxy so I can reinforce and ready to run.

Nice
do you think it is a solid hull without the mods ?

[studioRS]

Bottom photos as requested…

[studioRS]

Finally able to buy some epoxy, this stuff isn't cheap and hands down the best in my opinion. Somewhat local purchase old skool on the phone through Merton's Fiberglass in MA, no need to order from WA state. Best part, ships ground UPS next day to Northern Vermont. System Three 1 1/2 QTs will hopefully last me for several more all wood builds that I have lined up.

- 1/12 Scale www.Classichydros.com Karleson Style kit from Doug C himself
- 1/10 Scale Wafarers Lady build
- 1/10 Pay n Pak (mostly finished, just need to build canopy area top)
- 1/5.2 Scale Sid-Craft F Hydro, Dick O'Dea
- 1/10 Scale Cozy F1 build

[studioRS]

Nice
do you think it is a solid hull without the mods ?

It is a far eastern built hull, which means not necessarily made from good epoxy resin, but with possibly polyester resins. The paint, build quality and overall looks and scale is stellar, super cool, trick little hull for the cost.

I'm going to reinforce with the kevlar I bought and new epoxy, but instead of ripping out all the already glued in wood and mounts, just leave them intact and reinforce and integrate. I don't really feel like creating stress cracks by removing something that is already glued into a fragile hull. This will cut down the time too.

I will leave the factory hardware installed and just use a slightly larger spec than factory 2860 motor, 2700kv on 3S. This will be a fine little runner as is. I have bigger builds that will require more mods and faster equipment. I basically bought this because it was already finished. Just needs a little internal strengthening so is can withstand some good stashes at speed and still look good afterwards.

Cheers, Thompson

[ls1fst98]

Looks like a lynx cat or mini zonda. I did mine a twin....it's a pain but looks cool.

[studioRS]

Looks like a lynx cat or mini zonda. I did mine a twin....it's a pain but looks cool.

It certainly is a cool little Cat hull. Wow, a twin? Love to hear and see the details, did you do a write up?

[studioRS]

Did a little work this rainy weekend on the baby Cat. WTHeck was Exceed manufacturers thinking using white silicone to glue in the nylon nuts??? :strange:

Had to use a little creative nut removal tool, an old Tamiya wrench. This removal redefines blind nuts. The operator is definitely blind getting the top two! Thanks to the iPhone camera, I was able to see what is still in there, still more to remove... The sharp edges of my Hudy allen wrench work pretty well at removing the white silicone. Fortunately, this comes off really easily.

Planning to get some 1/8" birch ply, carbon kevlar and epoxy back there.

[785boats]

Nice work.
I wouldn't use ply in there. I've found that after a while the ply tends to compress where the nuts are & so they, in effect, become loose. Then you have to get in there again & re tighten them. Carbon or aluminium would be better.

[studioRS]

Good call on the aluminum plate, thanks!

[studioRS]

Here is a transom piece of 6 layer 1/8" birch ply (not lite ply) and measurements if anyone is interested. This fits well in the back, but took me several cuts to get one that fits! I just need to get more layers of ply (or hardwood block) behind to fill the square area and then get longer socket head bolts and add a 1/16" aluminum plate over the plywood after it is finished—like a giant washer for the nuts.

[785boats]

Good one.
Make sure you seal it well with epoxy. Especially the edges. It will get wet from time to time

[Meniscus]

An option to aluminum is Lexan. I've used this in several models that have survived high-speed crashes at over 80mph. I know that a lot of folks may have issues with polycarbonate cracking, but the thicker Lexan has served me well. It may weigh just a tad more, but I doubt it will make much difference for such little material as is used on an application such as this. In my applications, I haven't noticed any loosening of the nuts.

[studioRS]

That's interesting using thicker lexan. Hmm. I'll have more progress and photo over this weekend, thanks for the tips.

[Brushless55]

Looking good man !!
love this little cat

[studioRS]

Finally had some time to get back on this project!

Opened up the wood channel for 3S 4000mAh 20C battery.


Carbon fiber kevlar prep


I was able to get two strips almost down the length of each sponson, just shy of the tip by about 2.5"


Chopped glass, 1/8" birch ply transom added with poured in epoxy.