Electroshocked 37" twin build

[ozzie-crawl]

Ok after a couple year break i decided to have a dabble with FE again. After buying a blackjack 29 the bug bit again and a genesis cat soon followed.
This led to a purchase of a FC shocker (tenshock electra 95). After some great advise of the forum i decided on going twins.
Setup will be leopard 3674s (1700kv) on 5s. Esc,s will probably be swordfish 120s or 200s.
Goal is solid mid to up 50s.
Have to say this is the nicest looking hull i have had. A bit dissapointed in the fact it is advertised as a s.a.w reinforced hull as in fact it is fairly thin.
Good news is the sponsons have very sharp corners and all ride surfaces are nice and flat and did i mention how nice it looks :-).
Here is a couple of pics with what i have so far. All goes to plan i should get some carbon fibre inlay work done next week.
Any advice along the way would be much appreciated.

Ozzie

[Rocstar]

Good to see that it arrived. Good luck with the build.

[ozzie-crawl]

Good to see that it arrived. Good luck with the build.

Thanks mate was a bit worried when usps said they had no idea were it was.

[srislash]

Excellent,let the building begin. Glad it made it. They are good lookin',aren't they...

[ozzie-crawl]

Excellent,let the building begin. Glad it made it. They are good lookin',aren't they...

Thanks shawn. Yea looks really good. Expect a few PM,s over the next few weeks if thats ok

[srislash]

I'll do my best to answer and recall the necessary facts my friend. I VERY recently just about went this route again.

[ozzie-crawl]

Thats is much appreciated mate.
In your thread i noticed you had a issue with turning. Were i run i am not racing oval and dont expect to turn at 50mph
But other than tucking the rudder did you find any thing else to help it turn ???

[srislash]

It turned better with outward rotation and once I got the CG up to where it was happy(37-40%) it was OK. I would like to do another and do some mods to the sponsons one day,like rounding the outer edge/step. I feel that is where it trips.Especially as at speed it primarily runs on the forward step.I was discussing this with Andy(AC Boats). I was cornering at a decent clip though just not above 50.

[ozzie-crawl]

Thanks for that. interesting on the outward rotation think i seen mark f comment the same thing.
I am only shooting for a consistant mid 50s speed so dropping to 30mph to turn does not worry me

[Fluid]

When I built my Shocker (single) I used a long SpeedMaster rudder. I ran it first with the rudder full length and it turned decently. But when I cut the rudder down for SAW running it no longer turned well except at a pretty slow speed. That didn't matter for SAW running but it was clear that a long rudder helped turning.


.

[Xcesive8]

When I built my Shocker (single) I used a long SpeedMaster rudder. I ran it first with the rudder full length and it turned decently. But when I cut the rudder down for SAW running it no longer turned well except at a pretty slow speed. That didn't matter for SAW running but it was clear that a long rudder helped turning.


.

This sounds very familiar to what we found with the setup on my cat hey Scott.
I totally agree, i did find a huge drop in speed on mine from really long to short.
I never thought it would create that much drag but hey it did!

Oh and that cat looks SLIK!
Cant wait to see it run

Make sure all your water lines stay on, dont wana repeat of the rigger

[ozzie-crawl]

Looking at the rudder i should have 2-2 1/4 inches bellow the bottom of sponsons. this seems more than enough on my genesis
but that is a single and i am thinking a twin wants to push it self straight a lot more.

Yea lets not talk about that rigger lol

[keithbradley]

Is there a reason you chose 5s/1700kv? I think you will have a better boat on 6s with those motors.

[ozzie-crawl]

Keith i am not looking for all out speed but a decent sports boat. 6s is still a option if i want it but would rather play with props to get what i want out of it as i like to tinker.

[keithbradley]

Keith i am not looking for all out speed but a decent sports boat. 6s is still a option if i want it but would rather play with props to get what i want out of it as i like to tinker.

Even if you're going the same speed, I think you're better off on 6s. Most twin cats benefit from keeping the RPM up and the prop size down...it helps to mitigate some handling issues, like the issue you mentioned of pushing through the turns.

If you already have the motors and 5s packs are just more available to you, that makes sense. If you can do either, I say run it on 6s. You would likely be around 60mph with x442s.