On Tuesday, July 9, 2013 9:50:49 PM UTC-4, wrote:
Finally, a rational voice in the internet wilderness.

Statistically, midair collisions in non-contest situations are so small, especially as compared to approach to landing and scratching for lift stall/spins that the attention and money being directed to this technology is crazy. To my knowledge, the leading cause of pilot deaths is stall/spins in the landing phase of flight. The recent situation at SFO is different?



THAT IS WHERE THE MONEY AND EFFORT SHOULD GO.



Flame me.



Guy Acheson "DDS"

It's not about money. If you can figure out how to get every glider pilot to use the ABCCCDDE or equivalent pre take off checklist for every take off, we'll cut fatalities by at least a quarter, right there. Dive brakes, dollies & canopies, anyone? A moment's advance thinking on an Emergency plan might save a few too.

Back to mid-airs. Eric is right to point out the potential utility of PF in the preventing accidents with transient power plane traffic. As well, it could have prevented the 2009(?) midair between a glider and tow plane (2 more fatalities).

regards,
Evan