REFLECTOR: elevator cuff was Brake authority

[Chuck Jensen]

Does anyone have a photo of the "cuffs" that are being discussed.  I'm
not sure I've ever seen the cuffs on the Velo.  You're welcome to email
directly.
 
Chuck Jensen 
 
 -----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Laurence Coen
Sent: Friday, June 08, 2007 12:39 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: elevator cuff was Brake authority


Al,
 
The way I understand it, the elevator cuffs were one of three things
done to address the deep stall problem.  Your current main wing was
redesigned and the canard was shortened.  The cuffs are no longer
needed.  They were a modification for existing Velocities at that time.
I received cuffs with my kit but never installed them.  Their purpose is
to increase the stall speed of the elevator which would explain your
high stall speed.
 
Larry Coen
N136LC

	----- Original Message ----- 
	From: Al Gietzen <mailto:ALVentures at cox.net>  
	To: 'Velocity Aircraft Owners and Builders list'
<mailto:reflector at tvbf.org>  
	Sent: Thursday, June 07, 2007 11:34 AM
	Subject: Re: REFLECTOR: Brake authority


	 

	I concur with Larry - 10KIAS makes a big difference.

	My canard stalls at 60KIAS with just me, 65KIAS with

	two people up front.

	 

	I still have about half the width of the elevator cuff on the
elevators. It gives a very gentle pitch-buck at stall, I've never felt a
lack of elevator authority; and I never have full aft stick on landing.
However; would removing the rest of the cuff reduce the stall speed?

	 

	I have my ground idle set to about 500 RPMs (Lyc

	IO-540 with two mags) which is pretty much as slow as

	it will run

	 

	My engine idle is about 850; that's about 210 rpm on the prop.

	 

	Al

	
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