The following is a critique by Pete Lehmann of Dave Proctor's
XC flight from Zirk's on March 16, 1997. Pete also provides some general
commentary about XC flying that is very useful to new XC pilots.
This webpage has been created from email sent to Dave by Pete; I've
added some HTML formatting, but made no editorial changes.
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Hi Dave,
Very nice job. You accomplished the hardest part of that trip, getting
past Cacapon Mt east of Paw Paw. Looking at a map validates your
description of it being east bumfuck.
Comments:
- When you asked about me climbing above Zirks, I didn't know who was
asking. Next time ask,'This is Dave,is that Pete at (guess our height
differential) above me?' When there're heaps of people on a channel it's
best to make transmissions very specific.
- You were quite correct to not follow me. My lift eventually struggled up
to 5,700 (I think) where all of the early lift ended. Had you come with me
at that point you would probably been stuck having to follow from behind
and significantly below. That is always a bad idea, particularly on a
(largely) blue day, and one where it had only just turned on. That could
have meant that as we got away from the good ridge we'd be struggling on
until only ten minutes before, we would have found ourselves in broken
country that was not yet properly triggering the lift back there. Indeed,
it was quite a while before lift became meaningfully good, and even then it
was found only when we had gotten onto bigger, cleaner ridges again. As it
was, Mitch nearly landed ten miles behind launch, and I got a little lower
than I liked.
To further validate your decision, I had been in precisely the same
situation with respect to Larry Huffman and Mitch. I too had been about a
thousand feet below and behind them when they left, and I went back to the
ridge. It is a hard, general lesson I have learned about following good
pilots from behind and below. You can stay with them for a while, but the
moment finding lift becomes a bit tougher, you are either too low or too
late to get the thermal that saves them. You are then history.
- Your course line: You were some 6-7miles north of our track at the point
you landed. I believe you were flying slightly cross-wind. I point that out
because on a truly blue day, that cross wind track would result in you
unknowingly straying out of the blue thermal streets, and into the
corresponding sink streets. It wasn't such an issue on your flight because
there were some clouds to indicate lift, and the bigger ridges were all
kicking off good thermals. But once you get into the flats on a blue day it
is meaningful.
I suspect that you took the track you did because of the influence of
others. That was a communal mistake that is the result of the Mountaineers
being a bit stuck in a route rut. Because they have often gone to Paw Paw,
they again go to Paw Paw by following route 51 even if that puts them on
the wrong track for finding lift. I flew there two weeks ago and they all
did the same thing, while on that occasion I successfully flew several
miles north of 51. In other words, follow your own analysis of the
situation. This 'individualistic' sport of ours has far too much herd
instinct in it. It is a delicate balancing act, but you need to know when
to benefit from going with the herd, and when to trust your own judgement.
The herd is often wrong.
- Climb rates: I and Larry only use twenty second averager figures. All other
instantaneous figures are useless. Incidentally, in four years of flying in
the East with a barograph the best I ever saw was 900fpm at a 30 second
sampling rate. And that was on a stupendous day. During those years of
barograph traces the best long-duration average climb rates
(ie.3,000-5,000foot climbs) were no more than 400fpm. I have occasionally
seen 1,000 on an averager, but basically it's merely distracting to think
that that's what's out there. Orient your decision making around working
200-500. If you see better, great, but don't count on it. I think many
pilots are too impatient to work garbage lift because they have an
idealized view of what's out there, and that view is the result of
believing too many stories about 'a thousand up'. This is particularly true
behind the Pulpit. In the flats lift is not going to be as good as it was
on the ridge. If it was true 500fpm on the ridge, you may have to work
stuff as weak as 200 in the valley until you again find good lift on South
Mt.
- Trash lift: You are again correct about having made a mistake by leaving
that rowdy thermal. It would almost certainly have mellowed out with time.
A tip about dealing with those strong, gnarly thermals: We pilots often
accentuate the thermals' nastiness because we begin to hold on to the bar
too tightly, and pull in as well. The result is that our encounters with
the lift, and accompanying sink take on a more dramatic character than is
really necessary. I sometimes literally tell myself to relax, ease up on
the grip, make smoother control motions, and slow down a bit. It is
remarkable what a transformation that brings to the thermal. Suddenly it
isn't so nasty, and one is climbing faster and more smoothly.
- Finally, the retrieve: You need to get/make a map holder and fly with a
map. Furthermore, you must make prior arrangements for pick-up. You are
clearly a good enough pilot that you will no longer merely fall over the
back at the Pulpit for a few miles. Once you go a bit further and into
confusing country like you did, retrieves become a nightmarish
inconvenience for yourself and, more importantly, the others you are stuck
going out and getting you. Speaking from personal experience, you can wear
out your welcome in a big hurry that way. At Zirks, what you ought to have
done is talked to the others present and found out if it was ok to expect a
ride, and with whom. Offer money, drugs, loose sheep, or whatever else they
value.
Christ, it's been a long time since I have had anyone to lecture on this
stuff. If you think it'd be of any use to your new XC buddies such as
George Price, Mark Cavanaugh, etc please send them a copy. Larry Huffman
and I have batted around ideas about how to help your new generation of
eager pilots. Doing critiques like this might be one way to accomplish
that?
Oh yeah, our flight. Mitch got the furthest (61.6 miles), landing on
route seven on the east edge of Blue Ridge mountain east of Winchester, I
landed on the western slope of the mountain (59), and Larry landed sick,
and frozen north of Winchester (44.9). We went most of the way together
after I caught up to them ten miles out. They then scraped me off at the
fourty mile mark, and Mitch and I finally hooked up again ten miles short
of landing. Climb rates were 200-600 (average about 350), with only Mitch
seeing one of 800fpm, and also being the only one to get to base at some
eight grand. It was quite easy after the first ten miles, until the last
fifteen miles which were in the open Shenandoah valley, and late in the
day. Mitch and I landed at about 5:05, and I'd been in the air for 3:40.
Helluva fine day.
Again, congratulations on a good flight,
Pete