From: Lancair Mailing
List [mailto:lml@lancaironline.net] On Behalf
Of RWolf99@aol.com
Sent: Sunday, January 01, 2006
10:54 PM
To: Lancair Mailing List
Subject: [LML] Connectors
<<Spacecraft just don't shake like
a four-cylinder engine.>>
Actually, it is much, much worse.
Not on orbit, of course, but on the rocket ride up there. I have
witnessed vibration testing to the spectrum which these things are qualified --
it makes our prehistoric 4-bangers seem as smooth as turbines. Roll your
stereo down a long flight of stairs and you'll begin to get a feeling for what
spacecraft have to survive.
I asked the electronics guys at work (Aviation
Technology Group, makers of the Javelin Jet) which connectors I should
use. They (very apologetically) told me that the MS38999 connectors were
the only way to go. They know these are the expensive ones -- these guys
used to work on kitplanes as well and know where we're coming from. They
told me that I was going to be spending a pile of money on connectors but that
it would be money well spent for reliability.
It's basically the same thing that Brent
is saying -- cheap connectors are false economy. Use the good ones, and
you'll be paying so much for them that you'll only install them where you
really need them.
I do not know if MS38999 connectors
(known as "thirty-eight triple-nine" connectors) are the same
connectors as the AMP Circular Plastic Connectors that Brent recommends.