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kerrjohna(at)comcast.net
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 Posted: Fri Mar 01, 2013 8:04 am Post subject: persistent left roll |
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Someone sent a question regarding a tendency for their 'Fox to roll to the left. I have lost the address to respond. Please contact me again.
Sorry
John
[quote][b]
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Vic Baker
Joined: 11 Jan 2006
Posts: 71
Location: Carson City, Nevada
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| Posted: Fri Mar 01, 2013 8:17 am Post subject: persistent left roll |
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John,
Check wing twist as described in the manual, I've seen two Kitfox aircraft set up improperly.
Vic
[quote] ---
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_________________
Vic Baker
Series 7
Carson City, Nevada |
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dholly
Joined: 19 Dec 2006
Posts: 40
Location: Upstate NY
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| Posted: Tue Mar 05, 2013 9:41 am Post subject: Re: persistent left roll |
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In a similar forum discussion, John McBean offered this reply:
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How to Cure a Heavy Wing
Re: Trying to correct left roll in cruise flight.
You are entering the "Test Pilot" stage. Be sure you are qualified and comfortable with making changes and test flying your aircraft.
Knowing that you are not the builder... I would suggest a reset... assume nothing.
Check the horizontal stabilizer for correct installation..
Set the wings back to the standard known condition and start from there.
Refer to your manual. 1 degree twist and 1 degree dihedral. Check length of the rod end thread.
From that point you can adjust either side.. we will typically decrease the angle of incidence first then increase on the opposite wing if needed. try to make changes equal.
For example.. We have a slight left turn.. or a heavy left wing as they say.
We have determined that we do not have a yaw issue that is causing the left turn.
We adjust the right wing rear lift strut rod end out 1 turn... record our change and pre-flight for a test flight. Decreased Twist (wash-out)
Not enough.. so now we'll adjust the left wing rear lift strut rod end in one turn.. record our change and pre-flight for a test flight. Increased Twist (wash-out)
Still not enough.. adjust the right wing front lift strut rod end in 1 turn... record our change and pre-flight for a test flight. Decreased Twist (wash-out)
Still not enough.. adjust the left wing front lift strut rod end out 1 turn... record our change and pre-flight for a test flight. Increased Twist (wash-out)
You may need to make a 1/2 turn or maybe a 1 1/2 turn all depends on the severity of the roll rate...
__________________
John McBean
www.kitfoxaircraft.com
208.337.5111
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-Kitfox III 582 Blue/C Grove Spring / Aerocet 1100 Amphibs
-Airdale Avid+ (project) TD / W.I.B. Gear |
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jconnell(at)fmwildblue.co
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| Posted: Wed Mar 06, 2013 7:07 am Post subject: persistent left roll |
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Another consideration:
Check the flaperon rigging. That was my problem. I found the problem became more pronounced when I slowly raised the flap handle...
Joe Connell
Kitfox-II
Time: 09:44:23 AM PST US
Subject: Re: persistent left roll
From: "dholly" <[url=wlmailhtml:{D2A9DF50-ED32-413E-A794-867F9EC58360}mid://00000039/!x-usc:mailto:oue191(at)yahoo.com]oue191(at)yahoo.com[/url]>
[quote][b]
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