"Roger Worden" wrote in message
. ..
I'm planning my Silver distance flight. After reading the Sporting Code
and several guides, I still have a question.

I'll be using a Volkslogger, and I'll be winch launching. My planned
Finish Point is lower than my Start Point, so I have to very be careful
about the 1% rule. The guides talk about notching a barogram to make the
release point clear (when aerotowing). Is that necessary with a flight
recorder and a winch launch? I really don't want to lose 200' to create a
notch, if I'm releasing fairly low off a winch launch. Would a tight turn
or circle right after release from the winch be evidence of the Start
Point, rather than a loss of altitude? Or is it even necessary, since the
cessation of climb (from 45 degrees up, to level flight) should be pretty
obvious?


Notching is more for height gains It would be very obvious that your track
would show a winch launch with a rapid climb.

It would then show you turn and thermal a bit hard to do with a winch wire
attached.

http://www.mals.net/bunyan04/pages/Picture%20001.htm see the first notch
that is the release I then made sure I was in good lift.

I then pulled the airbrakes while still in the wave and put a good notch
into the trace.