Dennis,
Mine is LS002. i replace it when the canopy will not stay open.
The design is a little poor and it takes a lot of force to hold the
canopy due to the mechanical disadvantage that the struts enjoy.
they are designed to have 100 lbs each as i remember. the last two
i bought and have not installed, are 130 lbs. the heaviest that
they make in that size i think.
how was your design changed?
Bill, 90 hours
On 3/25/2014 3:23 PM, Dennis Johnson
wrote:
Hi Bill,
Do you measure the force of the canopy gas struts before
replacing them? Lancair can tell you the minimum rated force
and pressing one down on a bathroom scale will tell you if it
needs replacing. What is your Legacy's serial number? Mine is
#257 and has the "heavy canopy" design, which is normal, due
to Lancair changing the geometry to reduce firewall deflection
with a closed canopy. I haven't changed my canopy gas struts in
the seven years I've been flying because they are still as
charged as when new.
Dennis
Legacy, 700 hours
----- Original Message -----
Sent: Sunday, March 23,
2014 12:13 PM
Subject: [LML] Re: Legacy
canopy issues
I have had a couple of instances where the wind blew the canopy
down while I had my arm outside the cockpit. The last time is
the closest I have ever come to having a broken arm! Damn that
hurt! Took weeks for the knot to go away on my forearm.
We could use a better gas strut for this application. I have
already replaced them twice and have another pair ready to do it
again. They are especially bad in cold weather.
Bill B
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