fightercat daytona build

[dude123]

Hey guys, a couple days ago i thought i should start a build thread about my cf fightercat Daytona and here i am haha. So i will update my progress with some photos tomorrow, but i thought i would go ahead and tell you guys what ive done so far and my plans. I haven't done to much lately mainly i have just put in the cf inlay which i will post pictures of. My plans for the power supply is going to be a neu 1521 1860kv on a pair of revoelectrix 6s lipos to start off with and maybe try 7s down the road. Esc wise i was thinking of running a swordfish 240 or a 200 Im not quite sure yet what esc i want to run so im open for suggestions. This will be my first build so take it easy on me haha, i guess well see how it goes!!!

[Make-a-Wake]

6s is already a bit much for that kv, I wouldnt even try 7s.

[dude123]

Ok thanks for the input! 6s would be 41,292 rpms so so ya i think ill just stick their. Im not really going for sport running though.

[kfxguy]

ive been running mine on 6s and 7s for quite a while now, no issues or signs of failure. I did run it on 8s once and the rotor wobbled, oscillated or something and contacted the stator and ripped the wrapping.....i think this was a result of a flip that happened so fast that i didnt let off the trigger and it free wheeled on 8s. Ive taken the motor apart numerous times for inspection and never had a problem until the 8s episode. so now i dont run it on 8s. would i run this setup in a heat race? definately not. Would I tool around the lake with it? I have and its been fine.

[dude123]

Ya i think ill stick woth 6s for the most of the time and then if im feelin confident and alittoe more experienced ill bump it up a notch. So correct me if this wouldnt work but when im putting in the motor i was aning on tacking it in with some epoxy and then do the final seal with jb weld? Ive seen acouple guys doj g it and it looks reakly nice.

[Make-a-Wake]

You can get all the speed you care to have within reason on 6s2p by prop choice, prop will have to be fairly small for 7-8s and all the extra strain on the parts at those rpms........just prop up, Neu's like to be loaded up and prefer diameter over pitch.

[dude123]

Ya i was thinkingn at first just starting with a 442 and work my way up i wiuld liek to run a 645 possibly

[dude123]

Ill get some pics coming when i get home

[Make-a-Wake]

Here's a speed calc I did with an x448 at 85% efficiency and 25% slip which is conservative.

[dude123]

Ok thanks!

[dude123]

Were did you get the calculator ?

[Make-a-Wake]

Were did you get the calculator ?

From the tab up top here on OSE. Your hull would have closer to a 20% slip.

[dude123]

Ok thanks! What is the best angle for the drive shaft when i bend the brass tube?

[kfxguy]

You can get all the speed you care to have within reason on 6s2p by prop choice, prop will have to be fairly small for 7-8s and all the extra strain on the parts at those rpms........just prop up, Neu's like to be loaded up and prefer diameter over pitch.

when you prop up on these narrow hulls like that, you lots of handling issues. I prefer a smaller or medium size prop and a decent amount of rpm. i'm not scared of 40 to 45k rpm in what we are doing with the boat. Ive build a few for people like this and they work reliably.

[RandyatBBY]

That is a great 4S motor you can prop up to a X460 and still have long run time. You will be flying around 70tie with that setup.