*SPAM* [SPAM] Radio Problem / Help

[Atwood, Mark]

CLEARLY the problem is the Futaba servos... VBG :-)

 

I know my Airtronics neck strap burns a little whenever I clip it onto a
Futaba transmitter to help someone...

 

-Mark (Airtronics bigot..er...flyer)

 

Seriously though...I agree with the person that said NOT to fly this
until you have it resolved it.  I too would look at the Rx again.  I had
an Rx a few years ago (Arch should remember this) that would always lock
up in the SAME maneuver...always a push from inverted...  Turns out the
crystal had a hairline crack in it.  It took more than one "review" of
the Rx to find it.  It behaved normally under normal loads...  it was
bizarre.

 

 

 

________________________________

From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Larry Diamond
Sent: Monday, March 14, 2005 6:41 PM
To: NSRCA
Subject: *SPAM* [SPAM] Radio Problem / 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

 

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