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View Poll Results: Which do you prefer for U-CAN-DO 3D 60
OS 120AX 7 25.93%
OS 91FX 4 14.81%
OS 91FX with Macs Tuned Pipe 2 7.41%
FS91II 5 18.52%
Other 9 33.33%
Voters: 27. You may not vote on this poll

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Old Aug 12, 2007, 10:44 AM
gumush is offline
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U-can-Do 3D 60 Size Engine Suggestion ?

I'm looking for engine from OS for UCANDO.

Alternatives
FS91II
.91fx
120ax

I think 120ax will be ok. ( maybe a little overpowered ).

Which do you prefer 91.fx ofr 120ax. ?
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Old Aug 12, 2007, 05:54 PM
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os 120 ax will not over power it but will weigh to much.

Remember, there is no such thing as to much power but there is such a thing as to much weight
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Old Aug 13, 2007, 11:39 AM
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I run an O.S. .91 fx on my 46 size U0-can-do. Perfect combo.
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Old Aug 18, 2007, 07:58 PM
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I had the 120ax in mine and agree it is to heavy, I went to a 91 four stroke which doesnt have as much pull out but is so much more enjoyable to fly and hover with the smaller motor turning more rpms.
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Old Aug 20, 2007, 09:25 PM
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I know several people who have them and they use a Saito 100. Great power and light weight.

-Matt
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Old Aug 24, 2007, 08:10 PM
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Ys 1.20

Get yourself a used YS 1.20, its a perfect match for the plane. I tried a ST.75, OS.91, Satio 1.0 and then a YS 1.20 NC, and the plane came alive.
Its flying style is suitable for a 4 stroke engine, big prop....
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Old May 25, 2015, 07:29 AM
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United States, NJ, Pedricktown
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Os fs91 ii

I've been flying my U-Can-Do with an OS FS91 II four stroke and just love it. Not too fast, quiet, and plenty of power for the vertical maneuvers. This airplane isn't meant to fly like a rocket or you'll be picking up the pieces when it comes apart in the air. Not meant for speed ! Good luck with it whatever you decide on.
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