On Nov 1, 7:42*pm, Richard wrote:
On Thursday, November 1, 2012 8:48:01 AM UTC-7, Tim Taylor wrote:
On Nov 1, 9:23*am, Mike the Strike wrote: I have had most conflicts when flying under cloud streets, including one incident a couple of years ago where I nearly collided head-on with a colleague at very high closing speeds. *My concern with PowerFlarm and its cheesy antennas *is that the range may not be sufficient to adequately warn me in this scenario. *The more information the unit can provide the better - that is why I oppose use of *the"stealth" mode. Mike Mike, I had exactly that scenario at Parowan during the nationals this year. Was near cloudbase at about 17,000 feet and doing over 100 knots indicated or about 120 mph over the ground. Light angle was low as I was running back to the southwest and the air noise from flying fast made it hard to hear the Flarm. My Butterfly display switched to conflict mode and showed a target straight ahead and at my altitude. I banked immediately and dove in time to watch W3 pass me in the opposite direction at about the same speed. Closing speed was around 240 mph (390 kmh), this would have worked in stealth mode so I have no problems recommending stealth mode for contests. Tim (TT)

Tim,

I would have seen the target apporximately 4 mile out on my Ultimate Le Display, and then the Lady would warn me of the traffic, *so I do not recommend the Stealth Mode. * More time to identify the threat is much better..

Richardwww.craggyaero.com

Voice warnings of traffic *4 miles* out? So what happens in a gaggle
of 30 gliders in one thermal? What happens when you're in a six pack
traveling at high speed down a cloud street in cruise and meet a
foursome head on, but the 3rd glider in the oncoming foursome is the
one that is on a direct collision course? My point is that the genius
of flarm is the ability to discriminate and prioritize. I simply
don't want to know about gliders that might become threats in a few
minutes.

Evan Ludeman / T8