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Old Jul 10, 2013, 12:57 PM
Allways the hard way!
georgy's Avatar
South Africa, GP, Germiston
Joined Jan 2012
463 Posts
Question
Lanyu 40 stik on 4250 500kv ok?

asked elsewhere but

Will a 40 size Ugly Stik go ok on a 4250 500kv set-up from my recently deceased 1450mm w/s FMS Mustang? (On 4cell, FMS 50A esc)

Looking at converting a nitro Lanyu 40 stik...

any thoughts please...

thanx
George
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Old Jul 11, 2013, 07:38 PM
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Joined Dec 2009
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It should work, but you may not get the performance you want from it. The KV on the motor is kind of low, but it was needed on the mustang because of the big 3-4 blade prop that was on it. I think you would be happier with it if it had a 700-800kv instead of the 500kv.
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Old Jul 12, 2013, 12:19 PM
DX5e fatal flaw- PM me!!!!
United States, NY, Cortland
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I have a 5lbs WWI bipe with a 550KV motor on 4S, I need a 13x8 to get decent power out of it on 4S, and it is a little hard on my aging $3 4000mah 90c batts.

If your plane isn't draggy and is more like 4lbs you'll get a little better than scale power, but it won't be real sporty.

40 size with 4S on 770kv has a good bit of spirit.
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Old Jul 12, 2013, 02:44 PM
Allways the hard way!
georgy's Avatar
South Africa, GP, Germiston
Joined Jan 2012
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Thanx for the reply gents.. Even in the Mustang i found it a marginal.. Guess that plan is not gonna work well then... I want some spirit in the stik!

George
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Old Jul 12, 2013, 03:33 PM
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think 5 cells then with the 500 kv motor
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Old Jul 12, 2013, 04:53 PM
DX5e fatal flaw- PM me!!!!
United States, NY, Cortland
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I recently acquired a pair of 5S batts and there's room in the bipe, a few tweaks and I'm going to be 5S also.

That way my 4S batts will survive to power my sig LT-40 (if/when I ever build it)
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Old Jul 14, 2013, 07:09 AM
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United States, NC, Newport
Joined Sep 2012
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I'd go 5s with that on a 13" prop. I think you'll be very happy with it. I have a couple 40 trainers I converted. I use 5055 motors 500-670kv on 5s with 12x8. These puppies weigh 6-7lbs and they are animals as far as power goes.
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