REFLECTOR: Mechanical Nose Gear Doors

Fri Oct 31 10:43:28 CDT 2008

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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