Delta Force Vortex 24 Hydro Setup Help

[RiggerSpeed]

Hey all, great forum, so much info.

Looking at a Vortex 24 hydro hull - people seem to like it.

Can you guys comment on the following setup?

-Vortex 24 hydro hull (with sweet graphics of course ;-) )
-SSS 3674 1940 kv (?)
-6S 5000mah, (2) 3s packs
-Seaking 120A esc (?)
-X442 (?)
-Hitec hs-82mg steering servo (?) (i have standard size as well)
-4" turn fin, right side
-75mm rudder
-.130 flex shaft? Too small?

Build notes:
-I would fiberglass the motor mount base area.
3674 motor: mount with rear support ring, water cooled face/screw mount.

Thanks for your feedback!
Looks like a good hull.

R.S.

[Mxkid261]

I recently built one of these. 3s 5000mah packs are a squeeze. I run two 2s 5000 soft packs as far forward as they'll go. Current setup is a 3674 2200kv, T-180, m545 running 4s.

http://forums.offshoreelectrics.com/...nfo&highlight=

[RiggerSpeed]

Nice build, mxkid261. Looks good!
You mentioned squeezing 2 3s packs in this hull being a little right - what pack were you trying? I'm hoping to run 6s and need to find packs that will fit.

[Mxkid261]

Any softpack 5000mah really. I tried some turnigy nano techs I believe. 6s was kind of a hand full in this boat it was fun but not practical. 4s you can hold it wide open in the oval around 50mph probably, haven't had a gps in it. Handles like its on rails.

[Mxkid261]

Turn fin alignment is critical mine handles great, my buddy built one almost identical and it was hopping in turns. I noticed his turn fin was way off he messed up drilling the bracket or something. He got it more perpendicular and it handled way better.

Here's his https://www.youtube.com/watch?v=1bLMSLqs1rU

[Fluid]

Based on my experience with the Vortex 34, mount the strut bracket as low on the transom as you can. Running the strut low reduces lift and helps to keep the hull on the water. This gives you options as you increase the speed, or are running on rougher water.

I really think that the OP's setup is too hot for the boat. That is potentially a 70 mph setup and careful tuning will be needed, along with flat water. The 120 amp controller is marginal.....


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[Mxkid261]

You got that right, I ran mine on 6s with an 1800kv 3674 and it got pretty warm (this was in summer) and I run a t-180. A 120 would be very marginal

[RiggerSpeed]

Thanks so much for your feedback guys! I'm now leaning towards the Vortex 34 and 6s. My crazy side wants 8s haha :-D

I've heard that these boats (hydro) scoop air and can get unstable? Is the hydro a boat that can handle 60-70mph?
Vortex 24 or 34

My goal: a 70mph rc boat.
And at 45 mph, something that can turn well and is pretty stable on moderate water. I have a small outrigger and though its fun, I need glass water for it to run right. Want something fast, but a bit more forgiving.

[Mxkid261]

I can't even run my hydro unless the water is pretty much glass. If you want a boat that can handle a little rougher water a hydro probably isn't what you want. I don't have experience with the 34 but Im sure it will be more forgiving than the 24. Also I'm not so sure how it will hold up to a hard hit at 70mph. I've flipped mine on 4s hard enough to bend the turn fin bracket and put some cracks in the gel coat and that was probably only around 50mph.

[Fluid]

My DF 34 running between 50-60 on 4S will handle moderate chop (1-2") okay although it will of course run much better in smoother conditions. No 34" boat is immune from this kind of water, but for the OP's goal of 70 mph a hydro is probably the easiest way to get there.

The 34" runs best for some of us with the CG forward and the strut set low - 1.5" or so below the transom. An air dam helps too. On relatively smooth water mine runs high 60s well, this an oval racing setup so there is more potential and I do not know the ultimate top end. But there will be a limit above which the boat won't stay on the water.


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[properchopper]

Done sensibly, the V34 can be a good, fun, competitive P-Sport. Do bear in mind that ANY MODEL BOAT running 70+mph will be a bit of a handful and a reliable recovery plan should be at hand. Not meant to discourage you but lots of fun running over 50mph to 60mph may be more rewarding than 70+mph zoom-zooms replete with the accompanying acrobatics.

If you want some 70+mph potential, here's one example (replete with the ongoing dialing in saga)

http://forums.offshoreelectrics.com/...light=vortex34