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Old 02-17-2017, 01:51 PM
egp8111 egp8111 is offline
Join Date: Jan 2011
Location: NC
Posts: 38
Default electric flap travel

Good news is the wings are on and the flaps fit and move nice and even( within 1/2 degree of each other) Bad news is I'm only getting 38 degrees down travel before the actuator jackscrew hits it limits. It just hits the up limit when the flaps are fully raised. Van's manual says you need something like 42 or 43 degrees static travel for 40 degrees in flight. Will I ever notice the difference between 36 and 40 degrees down ? It's working so well I kind of hate to mess with it.
RV4 #1904
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Old 02-17-2017, 02:03 PM
flyinga flyinga is offline
Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 478

Skip, If it were mine I wouldn't worry about it.
Jim Averett
TS36 - Silver Wings
Fredericksburg, TX
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Old 02-17-2017, 04:34 PM
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Saber25 Saber25 is offline
Join Date: Dec 2010
Location: Colorado
Posts: 176

Skip it and fly on. No one but you will know.

Cheers, Hans
Build 'em light, keep it simple

I'd rather fly than tinker.

"There's a big difference between a pilot and an aviator. One is a technician, the other is an artist in love with flight."
- Elrey B. Jeppesen,
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Old 02-17-2017, 04:43 PM
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Mel Mel is offline
Join Date: Mar 2005
Location: Dallas area
Posts: 9,776

I actually set mine to 38. This gives me a little margin for the gap seal.
At 40 if someone leans on the flap, it's not uncommon for the gap seal to pop out and hang on the wing trailing edge.
Mel Asberry..DAR since last century
A&P/EAA Tech Counselor/Flight Advisor
Specializing in Amateur-Built and Light-Sport Aircraft
North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)
Legend Cub purchased 12/2017
FRIEND of the RV-1
Eagle's Nest Mentor
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Old 02-19-2017, 02:14 AM
Slice Slice is offline
Join Date: Aug 2016
Location: Tacoma, WA
Posts: 61

When I bought my 4 I did stalls with my 200+ LB instructor in the back. It was around 50 knots clean, 47-48 knots indicated full flaps. Anyone gnats assing their airspeed that closely on short final is wrong. I have no idea of the actual degree that mine move other than full up or down. I'd go with the rest of the consensus thus far and carry on.
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Old 02-19-2017, 01:46 PM
egp8111 egp8111 is offline
Join Date: Jan 2011
Location: NC
Posts: 38

I like the way you guys think.
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