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Old Apr 30, 2011, 03:49 PM
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Originally Posted by wamsy55 View Post
I bought it last week ... so it is pretty new ....
Ok, because the new version which you have is different from the old version that had .35 laminated stator. New ones are .20 and the Kv is about 2150. Soon there will be a new 2205-1800 that has a 1700Kv and stays just under 10 amps on 2s with a 8x4DD. Yours (2150) will pull around 12.5 amps to start depending on the battery. This causes one to use a 12 amp esc.

The 1700 gets about 15 ounces of thrust and the 2150 about 17 ounces of thrust using an 8x4.

FYI
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Old Apr 30, 2011, 03:59 PM
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Wow .. thats a lot of thrust ...

I guess I need to be a little careful since I am only using a 10 AMP Esc.
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Old Apr 30, 2011, 06:21 PM
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Originally Posted by wamsy55 View Post
Wow .. thats a lot of thrust ...

I guess I need to be a little careful since I am only using a 10 AMP Esc.
That's at 7.4V tested by Dr. Kiwi, the 2205-1800 V2 test sheet can be found on RC Groups. Most small lipos don't hold their voltage there very long and most 10 amp esc can handle 12 amp bursts, but yes be careful

This is why the new 1800 was wound different so it stays under 10 amps and still has plenty of thrust for 3D planes up to 8 ounces.

There will soon be a 12 amp Motrolfly esc to be matched with what will be 2205-2150.

Ken
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Old Apr 30, 2011, 07:32 PM
My hovercraft is full of eels.
USA, TN, Gallatin
Joined Aug 2009
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The 2203-1350 or 1600 series with the 10A esc would be ideal for the 27". Wamsy's 2205 is just overkill. Wonderfully insane and fun overkill!

The 2210-1080 looks great for the EPP 34" that weighs in at 10oz and flies with a 3S pack. I was frying its cheap 1380kv motor on 3S last night after a long hover-walk down the runway and back. I could smell it in flight.

I just maidened another depron 27" that I built for a buddy. It was too windy to do anything other than harrier from side to side across the yard, but it does that so well!
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Old Apr 30, 2011, 07:34 PM
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My ESC or motor never got warm though ....

Probably because it was sooooo overpowered that it normally didn't need to be flown over half throttle.
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Old May 01, 2011, 09:26 AM
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Originally Posted by StormdriverOne View Post
The 2203-1350 or 1600 series with the 10A esc would be ideal for the 27". Wamsy's 2205 is just overkill. Wonderfully insane and fun overkill!

The 2210-1080 looks great for the EPP 34" that weighs in at 10oz and flies with a 3S pack. I was frying its cheap 1380kv motor on 3S last night after a long hover-walk down the runway and back. I could smell it in flight.

I just maidened another depron 27" that I built for a buddy. It was too windy to do anything other than harrier from side to side across the yard, but it does that so well!
The 2203s max 3D weight seems to be around 5 ounces, any more than that and hover at mid battery can be challenging.

There will be a 2204 soon, maybe a month, will have an 8mm bearing tube for those type of mounts. Also will have an adaptor that will fit DD props and GWS SF props.
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Old May 01, 2011, 11:35 AM
My hovercraft is full of eels.
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Hmm. That won't work then but the 2204 sounds like it will. I'll probably order a 2210 this week and wait for the 2204. My motor mount isn't as beefy as Wamsy's and a 2205 would probably rip it off.

Maybe I'll order one anyway.
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Old May 01, 2011, 04:48 PM
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Originally Posted by StormdriverOne View Post
Hmm. That won't work then but the 2204 sounds like it will. I'll probably order a 2210 this week and wait for the 2204. My motor mount isn't as beefy as Wamsy's and a 2205 would probably rip it off.

Maybe I'll order one anyway.
2205-1350 tested by Dr Kiwi
8x4 GWS DD 7.9V 5.3 amps, 11.3 ounce thrust, hardly pushing the motor, but if you want something that flies a 3D 6oz plane with just the amount of thrust needed then this may be a good one.

Then again a light 2204 may be the better motor.

Ken
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Old May 02, 2011, 10:37 AM
My hovercraft is full of eels.
USA, TN, Gallatin
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Oops, I was wrong. No account needed. Order placed.

In other news, I got one of the 10g motors that I ordered for my 20" Sbach and it didn't include the prop saver that was shown in the picture when I ordered it. That makes it useless until I find something that fits.

Edit: Had a prop saver that fit but the new motor sucked terribly and got hot within seconds. I believe it is defective. I'm starting to think this little version is not worth the effort but I did shave some weight off of it with the new motor, esc and battery. The flying wieght is now 3.4 oz, down from 3.8.
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Last edited by SD One.; May 04, 2011 at 03:04 PM. Reason: Corrections and such.
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Old May 04, 2011, 03:40 PM
My hovercraft is full of eels.
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Alrighty! After further consideration, I ordered a 2215-1150 / FM-30 combo for the 34" EPP Sbach. The 2210 is slightly smaller than the 370 I have on it now and although I have no doubts that it's a much stronger motor, I didn't want to fry it with a 10x4.7 prop on 3S.
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Old May 04, 2011, 03:42 PM
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Originally Posted by StormdriverOne View Post
Alrighty! After further consideration, I ordered a 2215-1150 / FM-30 combo for the 34" EPP Sbach. The 2210 is slightly smaller than the 370 I have on it now and although I have no doubts that it's a much stronger motor, I didn't want to fry it with a 10x4.7 prop on 3S.
Nice ....

That should be a good setup.
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Old May 04, 2011, 03:55 PM
My hovercraft is full of eels.
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If it's too much, there's always a bigger foamy! 42 inches of depron Sbach would be so much fun!

Oh, update on the 20". A Rimfire 200 did the trick without adding any weight. Flies great but has incredible amounts of torque roll during flight when I goose it. I guess an 8" prop is a bit large for a 20" plane but the little motor handles it well! I ordered some smaller props along with the new motor for the larger plane. Being so much smaller, I need faster reflexes to fly it. It harriers nicely and flies a lot slower now. Very solid. Hovers are tricky with that prop. It's fast too. Full throttle in the yard is not possible. I'm gonna try to get some video of it this evening if the wind settles down.
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Old May 04, 2011, 08:54 PM
My hovercraft is full of eels.
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Here is video of the 20" Stormbach with a Rimfire 200 and a GWS 5043 prop. I didn't think it would fly worth a darn with such a tiny prop.

http://www.youtube.com/watch?v=kq6BVZC3Cf4
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Old May 04, 2011, 08:56 PM
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Originally Posted by StormdriverOne View Post
Here is video of the 20" Stormbach with a Rimfire 200 and a GWS 5043 prop. I didn't think it would fly worth a darn with such a tiny prop.

http://www.youtube.com/watch?v=kq6BVZC3Cf4
It looks great !

It does look fast though.
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Old May 04, 2011, 09:32 PM
My hovercraft is full of eels.
USA, TN, Gallatin
Joined Aug 2009
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It was a LOT faster with the bigger prop. Like... flappy control surface fast. I like it better like this. That little plane took a lot of trial and error but I think this is a good setup for it. It still needs a tiny bit of right thrust but not as bad as it did with the bigger prop. I've got GWS 6x5 SFs on the way for it.

I've still got one more thing I'd like to try and that is to swap the electronics to the other side so I can put the battery, which is heavier, on the side opposite the torque. I don't know if that will help, but I don't see how it could possibly hurt.
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