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Old August 11th 17, 03:07 AM posted to rec.aviation.soaring
Michael Opitz
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Posts: 318
Default ASW27B prices falling

At 20:18 10 August 2017, Jonathan St. Cloud wrote:
The new designs have not proven they are better than the 27. The

JS-3
whil=
e very innovative, has very low wing area, which might prove a

hindrance
on=
weaker days, and the V3 has not competed in 15 meters. The 27

might very
=
well be the equal of these newer gliders and priced right to get

younger
pi=
lots into competitive ships, just one reporter's musings.

Back in the 1980's I flew in 3 WGC's and pretty much had the ability
to get very a low serial number of any new glider that came out in
my class. I chose to fly in Standard Class because it had the most
restrictions - which limited the quantum performance leaps with new
technology, which meant that my investment in my glider tended to
hold its value better due to remaining competitive for a longer
period of time. Nonetheless, that was the period where the newer
generation of turbulated airfoils came out, and the advancement was
quite rapid. It was so rapid that I went through 6 different gliders in
8 years in order to keep on top of the performance changes, which
gave me the best chances in competitions.

Here is how I made the comparisons and the general assumptions I
made. Just for this argument's sake, say that the new glider had a
10 foot per minute cruise advantage over the old one (although I
saw much bigger differences than this on occasion). If one was
going to fly a WGC in a good wx place (like we did in Benalla 1987),
one could have 12 competition days. Assume cruising 75% of the
time, and 4 hour tasks, that meant 3 hours cruising per day X 12
days = 36 hours = 2160 minutes X 10FPM = 21,600 vertical feet
advantage over 12 racing days. Divide that by an average climb
rate of 500FPM, and you get ~43 minutes x ~6 points per minute
= ~260 points advantage the new glider has over the period of the
contest GIVEN flying the same and making the same mistakes.
You can reduce it down for a 9 day Nationals, and I come up with
around a ~195 point advantage at 10FPM.

As I said, some of the observed performance differences were
significantly larger than the 10FPM I use above. I looked at the
numbers and concluded that if I wanted to have any chance of
winning a WGC, I could not afford to give up that many points to
the best in the world in advance, so I switched gliders.

I still have the Discus-2b I bought in 1999, and there is still nothing
better in Standard Class. Additionally, in the USA, we have
handicapped this class, so my glider will stay competitive for the
foreseeable future. Unfortunately, D-2 prices have also fallen off
recently, most probably due to lack of participating pilots in the
class. Back in the 1980's, there were ~16,000 SSA members and 3
racing classes. Now, there are only ~12,000 members, and in
addition to Open, 15m, and STD, we have 18m, Sports, Club,
13.5m, World, and soon a multi-seat class. Too many classes and
too few competitors makes for a really screwy re-sale market....

As I said in another post, In Europe there are enough clubs and
participants where these gliders get absorbed much easier. The
newer gliders are all designed on computers, so they can design nice
handling into them to go along with the great performance. They no
longer have to compromise on the handling / performance issues, so
clubs can buy them and not have to worry too much about the
average member flying these birds. In the USA, most clubs are
pretty strapped for cash, so they will say "We can buy 4 G-102's for
the price of one ASW-27, and the average member won't really need
or see the performance difference." They will buy the used G-102
for ~$18K, and keep the other $62K in the bank for other
contingencies like rebuilding the tow plane engine, etc....

RO