[SPAM] Need Help....

[William C. Harden]

Whatever you do, do not fly again with this radio in your pattern plane
until you discover the problem.  I would first suspect the receiver as
faulty.   If you have a slow flying plane like a trainer then place the
receiver in the plane and flight test it.  Also, throw away the leaky
battery as you can no longer trust it.  
 
A leaking battery cell is not good, but if the battery pack had good
power and checked out good under load then it isn't the source of your
problem.
 
Have you flown with this radio before?  Is this a new problem?  Is your
receiver FM or PCM?  
 
Bill
 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Larry Diamond
Sent: Monday, March 14, 2005 5:35 PM
To: NSRCA
Subject: [SPAM] Need Help....
 
The last time my Focus flew I had radio problems. (June 2004 @ D4
Shoot-Out, Muncie)
 
Conditions were windy (25mph+) crosswind from the South if I recall
correctly.
 
As the plane crossed center (right to left) getting ready for the
initial pull in a Non-Rolling Triangle Loop (Intermediate), the plane
pitched down to about a 30 degree dive and dropped the left wing about
45 degrees. This was a violent event (hence the pucker factor was above
10) and my thumbs had not yet touched the sticks when this happened.
 
This happened twice. The second time had most everyone watching and all
other  Tx's were turned off. I was the only one out of four people on
the same channel to have a problem.
 
1)       No issues noted with the radio installation and the antenna
wire was in its correct place.
2)       The Tx Module and Rx were sent to the MFG. No problem found.
3)       I did open the Rx battery pack and found a leaking cell.
However, the battery was freshly charged and checked good on the ground
after the flight.
4)       Equipment:
a.       Stylus TX
b.       Airtronics RX - FM / 8 channel
c.       All servos are Futaba Digital except throttle.
d.       YS 1.40L
 
The only problem I found was the Rx battery pack. I have been told by a
number of folks that the battery pack wouldn't be the likely cause of
this problem.
 
Any other thoughts before I try to go fly this plane again?
 
Larry Diamond
NSRCA 3083
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050315/71feede9/attachment.html