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1. 09:11 PM - Re: Door pull ()
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4/5/2011
Hello Al, Attached are two pictures of my KIS TR-1 door pull system.
Picture 0548 is taken with the copilot's door partially open (for
picture taking purposes). When the door is fully open the string and
ball hanging down makes it still possible to reach the ball and pull the
door down and then the bottom end of the door inward for latching
purposes.
Picture 0553 is taken with the copilot's door closed and the string
wrapped over the handle and then around the handle knob to both keep the
string out of the way and provide additional assurance that the handle
will not inadvertently move to an open position. A little bit of bees
wax rubbed on the string from time to time provides just the right
combination of stiffness and stickyness.
Notice the taper on the end of the locking pin. This provides a wedging
closed effect. The aluminum bracket that the pin goes into holds a nylon
disc with a hole in it that the locking pin actually comes into contact
with. The nylon disk provides a lubricating effect so that I don't have
aluminum rubbing against aluminum during the pin locking movement.
This system has worked perfectly for over 336 hours.
'OC' Baker Says: "The best investment we can make is the time and effort
to gather and understand knowledge."
======
From: ALFRED ROSA
To: bakerocb@cox.net
Sent: Sunday, July 03, 2011 9:03 AM
Subject: Re: KIS-List: Door pull
OC, good to hear from you. Yes, send some pictures if it's not too
much trouble.
Bob, good to hear you're getting back to finishing the project.
What's left to do?
Al
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On Sun, Jul 3, 2011 at 12:05 AM, <bakerocb@cox.net> wrote:
7/2/2011
Hello Al, I have a short length (maybe 12 inches long) of nylon cord
coming out of a hole on the inside of the fat part of each door. A knot
on the outer end of the cord keeps the cord end from pulling out through
the hole.
On the cockpit inner end of each cord I have a round wooden bead
(maybe 5/8 inch in diameter) with a hole through the bead and a recessed
portion in the hole for a knot on the end of each cord to keep the bead
from coming off.
The cords hang down with the beaded ends within easy reach for
pulling the doors down with the cord into the door closed position.
Additional inward pull is also applied by pulling inward on the beaded
cord end as the other hand moves the latch handle into the door pinned
closed position. (A slight door inward wedging action is created when
the door latch handle is moved into the pinned closed position by the
door pin design.)
Then each cord is wrapped around the door latch handle knob a few
times to both keep the cord out of the way and to add some additional
insurance that the latch handle will not inadvertently move to the open
position while in flight. (The primary means of keeping the door latches
in the closed position is the Europa shoot bolt mechanism.)
For some cooling air one can taxi with an elbow holding the door
open a bit while that same hand is used to hold the cord to keep the
door from moving further open.
An additional consideration is that a person on the ground can force
the door latch into the door unlatched position in an emergency rescue
situation because the nylon cord will slip and unwind if enough force
is applied to the exterior door latch handle.
I'd be happy to take and send or post some pictures if anyone is
interested.
'OC' Baker Says: "The best investment we can make is the time and
effort to gather and understand knowledge."
======
From: ALFRED ROSA
To: kisbuilders
Sent: Saturday, July 02, 2011 1:01 PM
Subject: KIS-List: Door pull
Wondering what builders have done as an aid for closing an open
door while sitting inside?
Al
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