REFLECTOR: Mechanical Nose Gear Doors

Fri Oct 31 13:26:18 CDT 2008

I believe the video of this is on Brett's Wiki   --
http://wiki.velocityxl.com/index.php?title=Velocity_Videos

Under the heading of "Retract Nose Door"

Or:
http://n44vf.velocityxl.com/videos/NG%20Door%20Mechanism%20with%20Anti-Bounc
e%20Spring.avi

Andy

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Brainard, Jerry
Sent: 10-31-2008 11:43
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Mechanical Nose Gear Doors

Ken,

I am also interested manual door closer system.  How do I get one?  If you
could send the movie to me off the reflector that would be most appreciated.

Jerry at jlbent.com

- jerry
N202VB

________________________________

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of KMis178813 at aol.com
Sent: Thursday, October 30, 2008 9:45 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Mechanical Nose Gear Doors

Jack
     I do have some still pictures of the mechanical nose gear door closing
mechanism but it is really hard to understand until you see it work. I will
take a short movie or 2 this weekend and send it to you off reflector. It is
difficult to make one unit for every plane. The placement of the gear pivot
in relation to the canard bulkhead seems to never be exactly the same. So
installation is a art of it's own, but when installed correctly seems to
work flawless. That being said I have 2 mechanisms made up and ready to
ship. Putting the "Gear in transit micro switch" activated by the gear door
closing, confirms that the gear is stowed and at least one door is closed. I
have one installed on Chuck Jensen's Velo (2 years) and one on Shazam
(N173EX) and both are working great.

          Ken Mishler

PS     I have been (helping) building a Lancair 360 for a local guy. Just
trying to see how "the other people" view things. WOW They put the
windscreen and the seats in backwards????

message dated 10/30/2008 5:43:01 P.M. Eastern Daylight Time,
jackprock at comcast.net writes:

	Hi

	Can anyone point me to a website with more pictures of the
mechanical nose door linkage? Does Ken Mischler 
	have a web site? I would really appreciate it.

	Thanks,
	Jack Prock

		----- Original Message ----- 
		From: Chuck Jensen <mailto:cjensen at dts9000.com>  
		To: Velocity Aircraft Owners and Builders list
<mailto:reflector at tvbf.org>  
		Sent: Saturday, October 25, 2008 3:05 PM
		Subject: Re: REFLECTOR: Nose gear doors don't close

		Mel,

		If you get tired of fiddling with the hydraulics, jerk all
of that stuff out and put in the mechanical linkage.  Originally designed by
David Scharfenberg and improved by Ken Mishler, it's simplicity, elegance
and reliability are remarkable.  I have probably a hundred to hundred and
twenty cycles without ever a hitch on the front nose doors.  Good stuff.

		Chuck Jensen 

			-----Original Message-----
			From: reflector-bounces at tvbf.org
[mailto:reflector-bounces at tvbf.org]On Behalf Of PUSHERPILOT at wmconnect.com
			Sent: Saturday, October 25, 2008 1:36 PM
			To: reflector at tvbf.org; support at velocityaircraft.com
			Subject: REFLECTOR: Nose gear doors don't close

			While doing a pre-buy inspection on my Velocity STD
RG I found that the nose gear doors are not closing.  When I lift the gear
leg by hand just a fraction of an inch the doors close.  The gear had been
tested several times a month before during the annual condition inspection.
The airplane had not been flown since. 

			What happened in between?  The gear leg is not
coming up as far or the sequence valve changed it's adjustment, or ??  After
the doors close the gear leg seems to be in the same position it always was,
slightly rubbing on the doors.  My sequence valve is the old style on the
floor in back.  I unbolted the forward connection on the shock/spring and
reached in to adjust the sequence valve.  The only way that I could hold the
valve plunger was with a hemostat, and I turned the adjustment screw one
half turn.  When I put it all back together the doors still didn't close.
Perhaps the hemostat allowed the plunger to turn. 

			The airplane has 120 hours.  The hydraulic fluid
level is OK.  I tried increasing the pressure with the two adjusting screws
and that didn't help.  Al Gietzen, didn't we find that those screws didn't
do anything way back when.... 

			Any suggestions? 

			Mel Bina 
			N14B STD RG 

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