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Old Mar 10, 2013, 12:10 PM
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36" scale power recomendations

building a berkeley Fairchild 24
WS 36"

May want to go go RC in it, whats a decent power system, something budget from Hobby king
3.5 gram servos?
7-10 amp esc?
500 2S?

OR?
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Old Mar 10, 2013, 01:24 PM
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An itch?. Scratch build.
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If it helps there is a good thread listing the Guillows small kits -

Guillow's Conversions - The list of conversion threads

If you scroll down to Kit No 701, it the Fairchild 24, but only 25" span.

A little further is Kit No 802 a Cessna Skyhawk 172, with is also 36" span. This one should give you some useful information on what other are using for a similar sized model.
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Old Mar 10, 2013, 03:31 PM
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The "pro" in procrastination
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Hey nitro,

I built a 36" span Fairchild 24 blown up from Earl Stahl plans for a free-flight model. It has flown well on a Feigao 12mm brushless inrunner in a GWS IPS A gearbox (5.9:1 ratio) on 3s and a GWS 7X6 slowfly prop, but I converted it to a 1300 kv Blue Wonder outrunner on 2s and a GWS 8X6 HD prop which works just as well for much less money. My Fairchild weighs between 10-11 onces depending on which motor/battery combo I use, and your results will vary if your all-up-weight is significantly different.

You can get the Feigao and IPS gearbox at BP Hobbies for around $40, or the Blue Wonder from Hobby King for under $10. Just Google the motor names and the suppliers and you'll find them.

Steve
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Old Mar 10, 2013, 08:48 PM
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thanks
I am on the right track then. I took alot of dihedral out to make it with ailerons.
I fly 1/4 scale and 50cc planes, this thing is sooo small, hard to work on.
Built the whole thing with 6$ worth of wood...
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Old Mar 10, 2013, 10:25 PM
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Not to mention that this not so small Model :-) will not leave a Debris Field on a 'crash' . Gawd Forbid that should occur.
Nor will it need 6 acres of field to fly in.
Small points, that will soon enough.. give pause, as to 'smallness'
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Old Mar 11, 2013, 11:15 PM
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If I build it right, you will be right. I need to keep it light or it will be a another pocket size scooter, not scalish or even fun to fly.
Ordered my micro set up..
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Old Mar 12, 2013, 08:53 AM
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The "pro" in procrastination
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Quote:
Originally Posted by nitrowing View Post
I need to keep it light or it will be a another pocket size scooter, not scalish or even fun to fly.
Actually, the Fairchild 24 configuration, with a high wing and lots of draggy struts between the wing and the landing gear, doesn't like to go too fast, and gets squirrelly when it does. Some guys have theorized that all those struts make for very turbulent air around the tail surfaces at high speed, leading to unstable behaviour. If you can keep the wing loading down to 10 ozs per square foot or less, 50 watts per pound will be more than enough for this bird to fly in a scale-like, easily-controlled manner. My 2 cents, anyway...

Steve
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Old Mar 12, 2013, 10:12 AM
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looking forward to it.
If I like it, I may double the plans and modify it where needed.
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