On Jan 6, 11:25*am, sisu1a wrote:
I helped Carl Herold a bit when he was developing his handicap system,
specifically the weight was manufactures listed (brochure) weight +
250 pounds. Military says a man with parachute = 200 + 50 pounds of
instruments, battery, O2, etc. I think todays allowed weights are much
more liberal.
I also think the handicap system we have works well and I for one am
quite happy with it.
JJ

Seems fairly sensible (but then again so does using IGC handicpaps for
any ships they are already issued for...) but I still wonder what the
deal is with the SZD-59 though.

The SSA list has a 62lb difference between the 13.2 and 15m versions.
The wingtips that get removed only knock like 10lbs off the the weight
and other than the tips it's the same ship. I'm within both weight
limits, but am still curious.

PZL Bielsko * * SZD-59 Acro * * SC * * *13.2 * *820 * * 1.075
PZL Bielsko * * SZD-59 Standard * * * * SC * * *15 * * *882 * * 0.99

-Paul

Beware that these are not "limits" but the baseline weight for the
published
handicap. Your actual contest handicap is determined by the weight
conversion
rule 11.6.1.2.2: If Competition Weight (Rule 6.12.3) is different from
the specified
Handicap Weight, theHandicap Factor shall be multiplied by the
following:
1.0 - ((Competition Weight) - (Handicap Weight)) * 0.0002

So, e.g. if your weight is 820 without the wing tips and 830 with
them, then your
handicap will be 1.075 without and 0.99 * (1 - ((830-882) * 0.0002) =
1.0104 with them.
There used to be a 50lb deadband around the handicap weight but that's
gone away.

-- Matt