Thoughts on Castle 1717?

[rickwess]

The application would be 6S in a DF Pirate 35". There looks to be lots of new ones on ebay that have been pulled from Traxxas XO-1. Prices don't look too bad either.

[rickwess]

It looks like not all 1717's are the same....damn.

[T.S.Davis]

Why 6s in a 35" boat? Just curious.

[rickwess]

Given the motor being the same, less amps. Any of the motors I'm looking at could run 4s or 6s, but are 2,000-2,500 watts continuous (i.e. not burst).

[T.S.Davis]

Sensible. 35" is so borderline. I would have struggled to make up my mind.

[rickwess]

I'm still struggling with this and haven't pulled the trigger on much of anything yet. I know 6s2p is going be a tight squeeze.

[Fluid]

Since you will be limiting amps, why not 6S1P? There are high-discharge 6000 to 6600 mAh cells which may fit better in the hull yet still have adequate capacity for you. Many of my race boats now run these cells and I have plenty of capacity with them.

Terry, if he ever races then 4S is not an option for him.


(hehehehe)

[rickwess]

The boat will probably never see a race............I know, never say never. Run time is somewhat important, say 5 minutes of sport boating with some SAW to impress the neighbours.

I hate solving problems with my wallet, but ThunderPower has a 7700 mAh 70C pack.

[T.S.Davis]

Another thought. A pair of 6s 3700's. Lay one on each side of the stuffing tube and run the motor further forward. Not quite as bad as a pair of 5000's.

3700's are all I need in my Q sport and it's a bit weighty.

[rickwess]

I was thinking the same in terms of 6s2p. The 3700mAh and 4400mAh packs only differ in length (Dinogy). I could probably even fit them beside the motor to make getting the CoG at 30%.

[srislash]

I run a 1717 in a DF 35. Been running Dinogy 6s2p 3300's with X646, 5mins is borderline, 4 is not bad. Prop down a bit and it should be doable. Usually run 10,000 mah in her. The 1717 does not care about weight.

[rickwess]

I run a 1717 in a DF 35. Been running Dinogy 6s2p 3300's with X646, 5mins is borderline, 4 is not bad. Prop down a bit and it should be doable. Usually run 10,000 mah in her. The 1717 does not care about weight.

Thank you for the real-life data.

[srislash]

And more real world, don't chince out on ESC. I run and use a Castle Ice 240.
Just a heads up.

[rickwess]

And more real world, don't chince out on ESC. I run and use a Castle Ice 240.
Just a heads up.

I wasn't thinking of doing so. I'll either get the Castle Ice 240 or Swordfish Pro+ 200. I like the idea of data logging. The Swordfish Pro+ 200 is a great looking ESC, but the idea of an external BEC is putting me off. Are you running an external cap bank? Any pics of under the hatch?

[mattmak]

The Hifei Swordfish Pro Plus 220 2s-6s has a BEC, data logging.
http://www.offshoreelectrics.com/pro...d=hef-HB61220L

Or was there a reason you were going for the 200A 4s-8s?