REFLECTOR: Static port stuff

[aminetech at bluefrog.com]

Terry,

I'm 100% certain it is connected correctly.  I say this because I just recently serviced a cylinder and had unscrewed the aileron bellcrank mount to make more room.  When I reattacted it, I failed to notice that the linkage had gotten overcenter (making it function in reverse).  During my initial flight I decided to engage the AP to ease my workload.  It immediately went into a hard roll, but I was able to disconnect it quickly before things got too serious.

John

--- terrence_miles at hotmail.com wrote:

From: "Terry Miles" <terrence_miles at hotmail.com>
To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
Subject: Re: REFLECTOR: Static port stuff
Date: Sat, 28 Feb 2009 10:00:56 -0500

John,
How many hours have you got on the autopilot?  I bought a TruTrak and found
out to my chagrin that the servo motor was working in reverse.  When I
hooked it all up I just checked to see that it was moving the surface, it
never dawned on me to make sure it was moving it the right way.  There is a
simple pin swap to reverse this.  
Terry

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of aminetech at bluefrog.com
Sent: Friday, February 27, 2009 6:25 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Static port stuff

Terry,

Interesting comment.  Sometimes my AP starts porpoising and I have to
disconnect it for a few seconds to get it lined out.  Next time it happens,
I'll open my alt static port which vents inside the cabin and see what
happens.

John

--- terrence_miles at hotmail.com wrote:


Have you considered just yanking
the static port line from inside and just using the ambient cabin pressure?
I have mine hooked up to outside and no problems to report, but I know guys
with autopilot alt hold issues that consider this as a possible fix.  Are
you up to date on this topic?
Terry

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of LAURA WALKER
Sent: Friday, February 27, 2009 5:41 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Static port stuff

Just wanted to thank everyone for their excellent input on my pitot/static
situation. I tried the low altitude test at 200 kts over the airport, and
sure enough, my altimeter read almost 400 feet high. I have since added
three layers of metal tape behind the port, but have not had a chance to go
up and test the change.

The good news is that I now have 40.1 hrs on 36 Lost Vacations, so I am all
set to get it down to my home field at EYE this weekend. I have been doing
my Phase 1 testing at TYQ, and can't say enough good things about Dan
Montgomery and all the excellent staff at Montgomery Aviation. If you are in
the Indianapolis area, you will find a welcome like few others at this
airport. They are now well-versed in Canardness, and can speak pitch-buck
and flapless aviation with the best of them. 

I'll post my static change results as soon as I find out myself.

Bill 
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