On Wed, 18 Nov 2020 17:00:53 -0800, Eric Greenwell wrote:

I also expect to see other Flarms while preflighting the glider before
flying, and before takeoff - no Flarms seen means I likely have a
problem and should determine what it is.

Is that a difference between FLARM and PowerFlarm?

I've never used Power FLARM, but I don't recall any FLARM showing traffic
when stationary: even waiting on the second winch queue I don't recall
the glider on the other cable showing as it launched nor a tow taking off
on the far side of the field. Or, for that matter, landing gliders
triggering it when I'm in the launch queue, so in front of and 100-200m
to one side of the landing glider. Then again, none of these should
trigger an alarm since a collision is not possible in any of these cases
is a collision possible. OTOH, even a taxiing tug 2-300m away can trigger
an alarm while I'm rolling up to the launch point after landing: very
disconcerting it is too when it happens!

But really: do it at the annual; do it when you are getting the glider
ready for the 1st flight of the season. It's not that hard - write
yourself notes if you can't remember.

Couldn't agree more. I always used to do that and now its a mandatory
item on the BGA-approved Annuals check-list.

I also like to run an early flight from a new season through the FLARM
trace analyser to check the range in all directions and make sure its
working correctly and the antenna didn't get displaced during the last
Annual.


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Martin | martin at
Gregorie | gregorie dot org