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  #41  
Old 12-25-2010, 10:03 AM
m3tt5 m3tt5 is offline
 
Join Date: Apr 2007
Location: Biggsville ILL
Posts: 82
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I went up Thursday and thought I would try a couple landing's takeing my flap's out as soon as I touched on both grass and hard surface. For me I could not tell much difference. I alway's us full flap's when I land and my airspeed coming over the aproach is about 60mph. I hope I am doing everything right.
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  #42  
Old 12-25-2010, 06:41 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
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At OSH 2009, I asked this question to Mike S, who has the most logged hours of any pilot in the world in RV'S.................

he said......" full flaps in a 6 is all drag and no lift". Take it from there.
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  #43  
Old 01-15-2011, 01:11 PM
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N42AH N42AH is offline
 
Join Date: Dec 2007
Location: RV-10 based at 9SC - Whiteplains Airpark
Posts: 406
Default 9A Flaps Up after landing

After reading this thread I started raising my flaps soon after landing and have found that with my 9A I can keep my nose in the air as long as I want when I keep the airspeed about 25mph. And its very easy to control direction with the rudder. My forward visibility is not impaired by the higher nose angle.

Yesterday I made a landing to a partially snow and ice covered runway at 3M7 and was able to keep the nosewheel away from any snow and ice bumps on the runway and able to steer easiely to the melted areas and at the last minute drop the nose and make my turn to the ramp.

Anything to keep the stress off the nosewheel is always welcome.

BTW my flap switch is on my stick and easy to utilize.
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Gilbert, SC
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Last edited by N42AH : 02-18-2011 at 04:46 PM.
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  #44  
Old 01-15-2011, 07:59 PM
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Mel Mel is online now
 
Join Date: Mar 2005
Location: Dallas area
Posts: 10,769
Default Not quite true!

Quote:
Originally Posted by gasman View Post
he said......" full flaps in a 6 is all drag and no lift". Take it from there.
If that were the case, stall speed would be the same with full or no flaps.
I will agree that full flaps do not have any more lift than 2/3 flaps. My stall speed is slower at 13? flap, and slower yet at 26?. At 39?, stall speed is the same as 26?.
Therefore adding full flaps gives you more drag than 2/3 flap but no MORE lift.
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Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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  #45  
Old 01-19-2011, 08:51 PM
bkthomps bkthomps is offline
 
Join Date: Jan 2010
Location: Destin
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Quote:
Originally Posted by Mel View Post
If that were the case, stall speed would be the same with full or no flaps.
I will agree that full flaps do not have any more lift than 2/3 flaps. My stall speed is slower at 13° flap, and slower yet at 26°. At 39°, stall speed is the same as 26°.
Therefore adding full flaps gives you more drag than 2/3 flap but no MORE lift.
isnt' that all different in ground effect?

with no flaps it puts more weight on the gears , and "kills" lift (allowing brakes to be more effective, less skidding tires, etc) or this is how I was taught....i didn't know it varied much from airframe to airframe

having said that, i am training with not touching the flaps until either positive rate, or clear of the runway......but I want to do commercial next, so it's habit building for me anyway
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  #46  
Old 01-19-2011, 09:20 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
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Quote:
Originally Posted by Mel View Post
If that were the case, stall speed would be the same with full or no flaps.
I will agree that full flaps do not have any more lift than 2/3 flaps. My stall speed is slower at 13? flap, and slower yet at 26?. At 39?, stall speed is the same as 26?.
Therefore adding full flaps gives you more drag than 2/3 flap but no MORE lift.
What Mike was saying is to leave the flaps down during your roll out to help slow the aircraft down. The full flaps create more drag than lift, and would be no benefit to retract to help braking by reducing lift.

Not so with a 8A or 10 with empty rear seats. The fwd cg will cause the nose to drop sooner than if one notch were retracted after touch down or landed with one less notch.
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  #47  
Old 02-18-2011, 11:58 AM
bignose bignose is offline
 
Join Date: Sep 2010
Location: Sao Paulo, Brasil
Posts: 72
Default Sometimes you need drag

Quote:
Originally Posted by gasman View Post
At OSH 2009, I asked this question to Mike S, who has the most logged hours of any pilot in the world in RV'S.................

he said......" full flaps in a 6 is all drag and no lift". Take it from there.
Yes, but there are extreme situations, where what you need is just that, DRAG. It allows you to come in like a paraglider, hanging more on power than on wings, on the limit. All you need to stop after touch down is chop the power...
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  #48  
Old 02-18-2011, 02:29 PM
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Sunriver Ken Sunriver Ken is offline
 
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Location: Sunriver, Oregon/Surprise, Arizona
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This is an easy one for me. I have a simple flap switch that must be held in the direction of flap transition. The flaps will stay in the position they are in when I let go of the switch. I need my two hands to fly the plane when landing and will not sacrifice my attention to hold the switch while the flaps retract. In my 9A I have not yet found a situation where I needed to get the flaps up or down faster than the switch will allow but would like one that is a simple up/ 1/2 down and full down but the plane was completed when I bought it and I have been told it is tough to change the set-up. AM I WRONG?

Thanks, Ken
N63EB
RV-9A/CS/195HP
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  #49  
Old 02-18-2011, 02:38 PM
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L.Adamson L.Adamson is offline
 
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Location: KSLC
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Quote:
Originally Posted by Sunriver Ken View Post
This is an easy one for me. I have a simple flap switch that must be held in the direction of flap transition. The flaps will stay in the position they are in when I let go of the switch. I need my two hands to fly the plane when landing and will not sacrifice my attention to hold the switch while the flaps retract. In my 9A I have not yet found a situation where I needed to get the flaps up or down faster than the switch will allow but would like one that is a simple up/ 1/2 down and full down but the plane was completed when I bought it and I have been told it is tough to change the set-up. AM I WRONG?
My flap switch is next to the throttle. It works the same as yours, but takes care of the two hand problem, since it's easy to work flaps and throttle with the right hand........at the same time.

L.Adamson --- RV6A
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  #50  
Old 02-18-2011, 02:41 PM
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Sunriver Ken Sunriver Ken is offline
 
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That is a good idea. I will look into it.

Thanks, Ken
N63EB
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