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  #11  
Old 03-07-2016, 09:16 AM
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Auburntsts Auburntsts is offline
 
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Quote:
Originally Posted by rv7charlie View Post
Note that the RV-9 (heavier controls) has wedge shaped inserts in the trailing edges instead of the 'folded' trailing edges on the other 2 seat RV's.
Same on the RV-10. The trailing edges are riveted with an AEX wedge in between the top and bottom skins, so the shape is basically pre-determined. The hard part is keeping the trailing edge straight during the riveting process otherwise you will end up with undesirable flying qualities.
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Last edited by Auburntsts : 03-07-2016 at 09:20 AM.
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  #12  
Old 03-07-2016, 09:37 AM
Chkaharyer99 Chkaharyer99 is offline
 
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Location: Pilot Hill, CA
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Quote:
Originally Posted by trackdom View Post
Hi,
I fly my RV 8 since a Few days , just 3 Hours, and I am quite surprised by roll response...at 150 kts or above it's hard to get a slow bank.
Can I change something in The controls? Waiting for a response from Van's.
Thanks
A light touch on the stick. You will adapt. Have fun!
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  #13  
Old 03-07-2016, 11:51 AM
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Caveman Caveman is offline
 
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Quote:
Originally Posted by trackdom View Post
Hi,
I fly my RV 8 since a Few days , just 3 Hours, and I am quite surprised by roll response...at 150 kts or above it's hard to get a slow bank.
Can I change something in The controls? Waiting for a response from Van's.
Thanks
Before building, I took the RV-7 demo flight at Van's. I thought the airplane's handling was awesome. Sporty and quick but yet confidence inspiring. You just thought about where you wanted the plane to go and it was there. Like everyone says, " a two finger airplane". When I did my first flight after building, I was in for a surprise. My ailerons seems very twitchy in comparison to the demo plane. Almost but not quite to the point of introducing PIO. I didn't like it as well. A few minutes gently squeezing the aileron trailing edges worked like magic. Listen to Dan H! My suggestion is to go up in another RV-8 or two first and ask to take the controls for comparison before proceeding. If they fly more to your liking than your airplane take Dan's advice.
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  #14  
Old 03-07-2016, 01:55 PM
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rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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The great handling that the RV airplanes are known for is often not realized because of incorrect trailing edge shape on control surfaces (on models without riveted trailing edges).

This can be an issue on rudder and elevators as well as the ailerons.

If you think your handling/control response is not correct, indiscriminately changing the shape is not a very good idea (even if you don't think so, this is a check that should be done on every RV if the owner doesn't know for sure they are correct).

Instead, the actual shape should be checked compared to what it should be and then adjustments made accordingly.

Paragraph 5.7 of construction manual Section 5 (Access a copy HERE) explains how to check the shape and then make adjustments if required.
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  #15  
Old 03-07-2016, 04:24 PM
lr172 lr172 is offline
 
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Quote:
Originally Posted by rvbuilder2002 View Post
The great handling that the RV airplanes are known for is often not realized because of incorrect trailing edge shape on control surfaces (on models without riveted trailing edges).

This can be an issue on rudder and elevators as well as the ailerons.

If you think your handling/control response is not correct, indiscriminately changing the shape is not a very good idea (even if you don't think so, this is a check that should be done on every RV if the owner doesn't know for sure they are correct).

Instead, the actual shape should be checked compared to what it should be and then adjustments made accordingly.

Paragraph 5.7 of construction manual Section 5 (Access a copy HERE) explains how to check the shape and then make adjustments if required.
Scott,

After squeezing and banging on my TE's, I am quite happy with the feel of my ailerons. However, as I was reading this thread I got to wondering about my elevators. My 6A is very pitch sensitive and I wouldn't mind toning it down just a bit if I could. Does the this type of exercise apply to the elevators as well as the ailerons?

Larry
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  #16  
Old 03-07-2016, 06:00 PM
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rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by rvbuilder2002 View Post
The great handling that the RV airplanes are known for is often not realized because of incorrect trailing edge shape on control surfaces (on models without riveted trailing edges).

This can be an issue on rudder and elevators as well as the ailerons.
Quote:
Originally Posted by lr172 View Post
Scott,

After squeezing and banging on my TE's, I am quite happy with the feel of my ailerons. However, as I was reading this thread I got to wondering about my elevators. My 6A is very pitch sensitive and I wouldn't mind toning it down just a bit if I could. Does the this type of exercise apply to the elevators as well as the ailerons?

Larry
As already mentioned, it definitely can.

It can cause lighter than designed pitch forces, a dead band in the control range, and a reduction in pitch stability.

It can have an influence on the rudder performance as well.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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  #17  
Old 03-07-2016, 06:05 PM
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Neal@F14 Neal@F14 is offline
 
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Quote:
Originally Posted by AviatorJ View Post
Sad to admit but I flew in my first RV this weekend and happened to be a 10.
If you thought the 10 was responsive on the stick, just wait until you get to fly a 4 or a 6

BTW, the way to fly an 8 is with your forearm rested on your leg behind the knee and your thumb and forefinger on the stick grip... Unless you're doing acro of course, then you'll want a more solid grip on the stick.
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  #18  
Old 03-07-2016, 06:27 PM
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Toobuilder Toobuilder is offline
 
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All a matter of perspective. The RV-8 is certainly sporty compared to a spam can, but downright slow compared to other airplanes - especially aerobatic ships.

Just give it time and alow yourself to adapt.
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  #19  
Old 03-07-2016, 07:42 PM
tthrew tthrew is offline
 
Join Date: Jan 2015
Location: Peoria, IL
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Default I agree with rv7charlie

Yep. I agree with rv7charlie. I have about 450 hrs total, 65 hrs in my 7A. When I was getting rv training, I was coming in for a landing and was unstable, I asked Tom Berge, why am I getting blown all over the place; it's not that windy. He responded, it's you. I said no way. He said let go of the stick. I did and the plane immediately settled down. You just need to get used to the responsive controls. Once you do, it's a blast. I love my 7A!
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  #20  
Old 03-08-2016, 04:35 AM
trackdom trackdom is offline
 
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Default Thanks...

It is such a pleasure to read your flight experiences. Vans are so light with controls that it's easy to stress the structure at speeds above Va. I am sure now that all is normal, that's a matter of touch.
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