MONTY THE ANSWER MAN ARCHIVE
Swift Landing Gear Doors
FOR P-51 STYLE GEAR DOOR INFORMATION... (050199)
Does anyone have the correct measurements for the P-51 style gear doors?
I need the distance from the hinge (top of the gear door) to the point
where the gear door connecting rods attach to the gear door. Also the
correct length of the connecting rods. My current P-51 gear doors buckle,
bend and rub the tire when the strut is flat! Obviously I did not realize
that I have a MAL engineered gear door until my strut went flat!#$* My
Swift has ELI gear, which should not make any difference for the gear
doors. The other question was to confirm that the gear door pushrods are
attached to the bottom portion of the gear leg (i.e. the part that slides
up and down) and not the upper part which is fixed. From an engineers
point of view (not really because I am not an engineer) it would make
more sense for the pushrod attach point to be located on the upper portion
of the gear leg. Thanks -- Mark Culpepper <MDCULPEPPER@Compuserve.com>
I went over to the airport & measured 60B's gear doors. From the hinge
to the AN3 bolt in the bracket is 11 1/4". The rods seem to all be 5 1/8"
long, but I caution you, these are adjustable. To the guy that wanted
to know how high a Swift sat with the gear up, it looks like about four
and a half feet. They (the pushrods) attach to the fork, (part of the
lower section) They quite nicely go outboard when landing or negotiating
bumps etc. Are yours the genuine STC'ed Lischer gear doors? They should
not present problems. -- Jim
LONGER GEAR DOORS STC...
Subject: Re: P-51 Gear Doors
From: Steve Roth <StevenRoth@aol.com>
Where can I acquire P-51 gear doors, preferably with an STC? Regards,
Steve & N2397B
Read the STC listing on the Swift Home Page. The STC was held by Monte
Zema, call him and ask. I'm not sure if they're available right now. Monte
Zema's phone number is in the Swift Membership Directory mailed out by
the Swift Association. -- Jim
"P-51" GEAR DOORS...
Subj: Gear doors
From: Dennis Friedrich <email@example.com>
Were is the best place to pick up a set of '51 gear doors for my Swift?
Do most make them or buy them? If they are made are there plans/templates
Last I knew the STC was held by Monte Zema - Globe GC-1A,-1B series. STC#:
Subj: P-51 doors Theyíre a Twisted Bunch
From: Michael Inskeep <firstname.lastname@example.org>
I made a set of P-51 doors for the Swift. Everything went well till I
was adjusting the fit to the wing in the closed position. To get the pilot
side to fit flush I have to force the front inward so far that it is in
quite a twist. The right side is not nearly as twisted. Iíve checked the
connection points as to the distance from the top of the doors ( APROX.
11" REAR 11 1/2 FRONT.) I cheated a little on the distance because
in close position it was hitting the actuator wheel. The hinge is straight
when I took the plane off the stands and let it settle on the wheels it
came in even closer to approx 1" from the tire. If the struts compress
further on landing it would likely rub the tire. There are 3 swifts on
the field here that Iíve compared the doors with. Everything seems to
check out OK. One gentleman here is a long time Swift owner and CI, who
has installed a lot of doors in his time. Heís stumped too! Any thoughts?
Thx. Michael in Ohio.
This is one of those deals where I would have to see the problem to help
you. The first thing that gets my attention is "I made a set of P-51
gear doors for the Swift." Did you use the same dimensions and geometry
as the genuine STCed gear doors? I would guess not. I made similar gear
doors before the STCed gear doors were available and I know I had problems
like you are referring to. I'm not saying the STCed gear doors are perfect
but they are well thought out and usually fit with a minimum of fuss.
Years ago, Dennis Stevenson in CA also made some enlarged gear doors which
required fine adjustment to fit correctly. I guess the best long distance
advice I can give is to buy a set of "genuine" STCed parts.
Alternately, accurately copy a set of known good fitting gear doors. --
ps The gear door STC is held by: Monte Zema (509) 684-5348 or (509) 684-2601