Who runs an Outrunner in their boats?

[Meniscus]

I figured we could all learn from each other's experience:

Who runs an Outrunner in their boats?

• Which one did you use? Manufacturer, size, KV, etc.? Link if you can find.
• What hull did you use it on?
• How did it perform for you?
• Have you tried any inrunners on this same hull?

All input is welcome. No one will judge the silly things that anyone does from time to time!

[bustitup]

ben
best place for scorpion outrunners is here..they got the best price and a 5% discount on somethings when you register..also check out the water cooles motor mounts for outrunners there

http://www.southriverrcboats.com/shop/category_18/Brushless-Out-Runners.html?shop_param=cid%3D%26

I figured we could all learn from each other's experience:

Who runs an Outrunner in their boats?

• Which one did you use? Manufacturer, size, KV, etc.? Link if you can find.
• What hull did you use it on?
• How did it perform for you?
• Have you tried any inrunners on this same hull?

All input is welcome. No one will judge the silly things that anyone does from time to time!

[Meniscus]

Thanks for posting the info. Have you used them in any of your boats and what has the result been?

[bustitup]

Thanks for posting the info. Have you used them in any of your boats and what has the result been?

have not used it yet but the 4035-800 I own is going into the 41" cat in my avitar

beleive me i have done a ton of reading up on scorpion outrunners and ALL I see is good news on both small and large motors

[dirtysouth31]

I dont

[Fluid]

I was looking for a sport motor for my 34" 6S SprintCat. I like the boat a lot, but it is way too fast (60+) for the small pond near my home. I chose the Scorpion 4025/1100; running on 6S1P with an x450 it runs near 40 mph for over 5 minutes. That is fast enough to be fun and long enough to be ready to bring it in. Amp draw is low for a motor with a 100 amp top end - nothing gets above 100F. More Kv is needed for higher speeds but that wasn't my goal. I got mine from Jim at southriverrcboats.




.

[FloatDaBoat]

All input is welcome. No one will judge the silly things that anyone does from time to time!

It appears dirtysouth went way beyond silly . . . .

[screwball]

ive got one in my renegade rigger lol the one that you buy with the kit but i haven't used it yet, but i will in about 2 weeks!

[egneg]

It appears dirtysouth went way beyond silly . . . .

Hence the name ... Dirtysouth.

[dirtysouth31]

[Meniscus]

Thanks for the input Jay. Have you run outrunners in any other boats?

Funny Don!

[Fluid]

This is the only outrunner I've used, and only the second one I've personally seen in a true FE boat. The other set a SAW record several years ago at Valdosta.


./

[Himalaya]

I tried a small outrunner in a Mono1, compared to inrunners it spools up rather slow(with everything else being same) but runs well. It also comes back a bit warmer than inrunners for the water cooling effect is not as direct.

IMO Inrunners are certainly more suitable for boats but for my new project, to convert a 1.4m(55") gas deep-V to electric, it's always thirsty for power. I may have to go to outrunners for that will save me 600+ bucks! Why are outrunners so much cheaper than similar rated inrunners?

[Meniscus]

Thanks Jay, can you recall who set that record or what equipment he/she was using? I'm guessing they were probably sponsored and you may know who the manufacturer was.

Himalaya, regarding why the outrunners are generally cheaper, I would venture to guess that the inrunners have to meet stringent specs to keep the magnets in place. As you may have heard, there have been many cases in the past where inrunners throw magnets and destroy the motor. With outrunners, it's a different design that doesn't lend towards throwing magnets in most cases, but may suffer from other aspects.

IMO, there's advantages and disadvantages to both. However as I understand, for boating purposes outrunners traditionally haven't had the higher KV ratings we need for direct drive. Plus, as you already indicated, watercooling may be a deciding factor as well.

Hope that helps. If you haven't already, look closely at the design elements of both and hopefully you will understand what I'm saying about the magnets.
=> Please someone correct me if I'm wrong with any of this.

[tharmer]

In the PNW the spec motor for out 1/7th scale hydroplanes is a Scorpion Outrunner 4035-800 on 8s2p. They are fast, reliable and have a reallly muscular sound. No motor failures (that I know of) amonst 15 boats that raced all summer.
-t