PowerFLARM leeching comments

At 00:01 02 November 2012, Evan Ludeman wrote:
On Nov 1, 7:42=A0pm, Richard wrote:
On Thursday, November 1, 2012 8:48:01 AM UTC-7, Tim Taylor wrote:
On Nov 1, 9:23=A0am, Mike the Strike wrote: I ha=
ve had most conflicts when flying under cloud streets, including one
incide=
nt a couple of years ago where I nearly collided head-on with a colleague
a=
t very high closing speeds. =A0My concern with PowerFlarm and its cheesy
an=
tennas =A0is that the range may not be sufficient to adequately warn me
in
=
this scenario. =A0The more information the unit can provide the better -
th=
at is why I oppose use of =A0the"stealth" mode. Mike Mike, I had
exactl=
y that scenario at Parowan during the nationals this year. Was near
cloudba=
se 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
southwes=
t and the air noise from flying fast made it hard to hear the Flarm. My
But=
terfly 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
ar=
ound 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
D=
isplay, and then the Lady would warn me of the traffic, =A0so I do not
reco=
mmend the Stealth Mode. =A0 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

Evan,

Just to be clear, you see the traffic 4 miles out but you only get the
collision
warning message when it close enough to be a potential collision warning.

When you have flown in a Flarm rich environment for a season, you will
understand why putting it in stealth mode feels like flying with a
blindfold on.

Mike