Servo Extension Connectors

[Tomanek, Wojtek]

"Some sort of safety to ensure that connectors stay together is a good
practice, don't overlook the connections at the receiver."
 
I use two separate batteries, two switches, C-volt, and an LED to check and
display the voltage.  This past weekend, I turned the systems on (normally I
turn the backup first) without realizing that the backup was not showing
anything on the C-Volt and flew one flight.  Before the second flight I
FINALLY realized that the backup battery was not connected and took the
plane apart to check.  The plug going into the receiver unplugged (probably
when I was readjusting the receiver several nights before).  In summary,
even if you secure the plugs/extensions make sure there is adequate servo
lead length to absorb movement during installation and during flight.
 
W-
 
-----Original Message-----
From: EHaury at aol.com [mailto:EHaury at aol.com]
Sent: Tuesday, May 20, 2003 7:57 AM
To: discussion at nsrca.org
Subject: Re: Servo Extension Connectors
 
Some sort of safety to ensure that connectors stay together is a good
practice, don't overlook the connections at the receiver. 

The pin/socket retention tab that the plastic connector housing indexes
against to keep the p/s in the housing is another potential failure point.
The metal tab will break off eventually and allow the p/s to move out of the
housing (unplug). This is especially true of aileron connectors that are
handled a bunch. I use flexible CA to keep this from happening, just a
little between the wire and the housing, it also acts as a strain relief by
anchoring the wire insulation to the housing. I suggest not using
non-flexible CA as there must be some movement between the p/s/housing for
alignment and good contact.

While on this subject, those of us in a climate that promotes (profuse)
sweating find that the aileron connectors will degrade from handling if not
cleaned with a contact cleaner occasionally.

Earl
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