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Re: Europa-List: Confessions of a doorlatch hacker

Subject: Re: Europa-List: Confessions of a doorlatch hacker
From: Fergus Kyle <VE3LVO@rac.ca>
Date: Mon, 1 Sep 2003 14:38:29

| >
| > Cheers,
| >             I am so far behind in building, I have taken to making|
ancillary
| > pieces out of sequence whenever I cannot follow the manual for
| environmental or other reasons. This applies to those who also must
deviate where possible from the manual sequence when necessary.

| > DOOR LATCHES
| >             This applies to hacking the hardware in
| > Classic manual, Door Latches, Chap 35, p.35-2, fabricating DL08R&F both
| port & starboard bolt arms, and,
| > XS manual, Door Latches, Chap.33, p. 33-2, same process.
| >             I made a habit of cutting each 10mm arm 'slightly' oversize
so that I
| >could later reduce it to exactly the prescribed dimension. HOWEVER, in
one
|> case I forgot to do that and verrry carefully drilled the requisite hole
so that it
|> ended up more than the required 7mm from the end (and I didn't notice).
|> When it came to assemble, the handle would not happily traverse| to full
|> forward (it jambed somewhere). Finding the source of the hesitation was
| > time-consuming and frustrating. It was not easy to see where the jamb
| > occurred. While the pivots were the proper distance from each other -
one
| > was 8mm from its end, because I had forgotten to reduce the rod to the
| > proper length. It therefore jambed against the axle barrel when extended
to
| > full forward action with the internal handle. Taking it out and reducing
the
| > dimension to the required 7mm solved the time-consuming problem.
| >             Neville and Ivan would smile.
| >             So if you come across the same problem as you assemble,
|> remember their words. Measure twice. Or, in my case, write yourself memos
|> to re-measure before later assembly.
| >             I did not pen this solely for self-purification. It's just
on the offchance that there is someone as stupid as I.    Ferg
| > Europa A064

----- Original Message ----- 
From: "hedley brown" <hedley@hedleybrown.flyer.co.uk>
Subject: Re: Europa-List: Confessions of a doorlatch hacker


<hedley@hedleybrown.flyer.co.uk>
|
| Talking about latches....
| ----- Original Message ----- Yesterday, with the gear down and latched,
late
| on final with a wind carrying hot gas from a cooling tower of an electric
| generator, I had a violent drop with so much negative g that my head
bashed
| the roof and the gear unlatched and with turbulent air the flaps pushed
the
| gear up.  So I went around to sort things out, but today I have put a
little
| spring on the latch to keep it in its slot even when it doesn't have
gravity
| to do it. That experience suggests to me that we should all have a similar
| little spring there. To those who say it hasn't happened to them in
umpteen
| hours I can only say not yet, and surely the rarity of experiencing
negative
| g when you have the gear down ready to land must account for the rarity of
| it       hedley

Well, it's not exactly door latches, but certainly important enough to curry
some interest. I have read before of someone experiencing neg G unlocking
the outriggers and that bears investigation. It may have been a message from
Nigel in regard to bumpy ground unlatching gear.
            I almost made a resolution to drop some sort of 'plug' into the
down-slot to prevent bumps from unlocking the gear lever, but that won't
work for outriggers. I'll bet Nigel could come up with somethiung useful and
minimal to discourage the tendency.........
Ferg




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