PowerFLARM leeching comments

Don,

In answer to the assertion that mid-air collisions in Switzerland have been

eradicated, mid air collisions are very very rare and relying on statistics

Switzerland is a small country. I have an incomplete list here
with midairs between 2006 and 2007 in Central Europe. The list implies
a lower bound of:
14 mid-airs
24 fatalities.

I'm not aware of a centralised European accident database, so statistics
is a bit tricky indeed, but it can theoretically be done by wading through
a few 1000s of reports from various national authorities.

recall in Switzerland over recent year was between two FLARM equipped
gliders, go figure.

http://www.bfu.admin.ch/common/pdf/2012.pdf

Mid-air between an ASH 25 and a Stemme near Samedan, April 2007:

1.3 Information concerning the aircraft

Motorglider HB-2XXX was fitted with a traffic and collision warning
system FLARM F4 which was not operational because its UHF antenna was
not mounted.

[ the ASH had an operational FLARM ].

The only mid-air events I'm personally aware of where both involved aircraft
had an operational FLARM on board was Finland 2011 and Uvalde 2012.

FLARM helps, but it doesn't provide 100% protection.

Best
--Gerhard