In article ,
Denis wrote:
Janos Bauer wrote:

Theoretically you don't have to go further than 125km from your home on
a 500km task.

it's actually 83.333 km only !

Hmmm...if S is start, F is finish, points are 1, 2, 3, and A
is the airport:

S 1

2 A 3

F

Then S-1 = 1-2 = 2-3 = 3-F = 125km
Since half of that is the max distance to the airport, 62.5 km
is max distance (about 33NM).

For gold distance of 300km, this is 37.5km (20NM).

Astonishingly,
for silver distance, one can fly a 3TP course without ever going
more than 6.25km (3.3 NM) from the airport! Get towed out to
near the start, and just fly back and forth over the airport
four times!

I'm not saying it's easier than just grabbing a thermal to
6000ft and then doing a 50km downwind dash ), but it sounds
pretty darned easy...geez, at 3.3 NM from the airport,
1000ft AGL is final glide even for a 2-33 :O

Of course assume half glide, and add pattern, blah blah,
but even that's just 3000 ft. Not exactly a challenge...



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Mark Boyd
Avenal, California, USA