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Servos--GP pitts

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Old 01-26-2003 | 12:41 PM
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From: butler, MO
Default Servos--GP pitts

Is everyone of the same opinion that metal gears are needed with the GP pitts? I would think a 70 -100 oz servo w/MGs are the same as ones w/PGs I reallize that plastic wears faster but the servo is no stronger or weaker is it??Also I'm planning on just servos in the lower wing w/links to top wing ails
Old 01-26-2003 | 03:10 PM
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From: fairmont, WV
Default servo

yes the metal gear and the plastic gear have the same torq but the plastic geared servos will be more prone to strip and flutter. I have seen hitec 605's strip out on a sig extra luckily a crash was avoided but they can strip under the right conditions. I have a pitts and went with the 5625's all the way around. It really depends on yor flying style. dut the pitts is a pretty decent size plane and I would at least use metal geared servos if not a servo for each aileron. Just my 2 cents. Good Luck and have fun.

Steve
Old 01-26-2003 | 05:04 PM
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From: Elephant Butte, N.M.
Default Servos--GP pitts

I have a Hitec 615 metal gear, on the rudder, 605's on the elevators, & a 422 on each aileron. Only rudder is M/G. I have 70+ flights with a FPE 2.4, and absolutly zero problems with palne, motor or radio gear. I dont fly 3D, but I sure dont fly strait & level either. Do definately us 4 servos on ailerons though. Will reduce the chances of flutter, and flutter will destroy the best of servos eventually.
Old 10-02-2003 | 01:20 PM
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From: papillion, NE
Default RE: Servos--GP pitts

what did you use for the throttle?...thnx
Old 10-02-2003 | 01:37 PM
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From: Alexandria, MN
Default RE: Servos--GP pitts

The Manual says 50 oz of Torque is recommended. I was going (Still building) to use Futaba 3004 and run a 6 volt system on the reciever which accroding to Futaba produce:

44.3 ounces-inches (3.2kg-cm) at 4.8V
56.8 ounces-inches (4.1kg-cm) at 6.0V

Am I making a big mistake? Anyone else using the 3004's?

Thanks
Old 10-02-2003 | 10:40 PM
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From: Valley Springs, CA
Default RE: Servos--GP pitts

I was at the field one day when a friend brought out a Cermark Pitts with (2) standard Futaba servos in the ailerons. 3002's or something like that. Both servos stripped out in flight. The plane was saved with excellent thumbs on the rudder and elevator, but I finally became convinced that metal gear servos are the way to go on larger or high performance planes. The Cermark Pitts is smaller and lighter that the G/P.

It's your plane. What's peace of mind worth?

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