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Old April 18th 08, 08:32 AM posted to rec.aviation.soaring
Marc Ramsey[_2_]
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Posts: 211
Default DG Differences...

g l i d e r s t u d wrote:
Marc in a feild landing you would touch down at 60mph?

I would NOT touch down at 60mph (I must have had one of those special
unflapped gliders that stalled less than 60)? I did say low energy and
nose high. Im not a math guy but isnt energy=velocity squared?

Sadly my Discus 2 went to FL so I cant show you.....maybe it was the
Maughmer winglets.... Now I am stuck with my big heavy glider that has
flaps.


My point was simply that 40 degree flaps or trailing edge dive brakes
produce a tremendous amount of drag, more than spoilers will. Enough
drag that you'll barely accelerate with the nose down 30 or even 40
degrees. Try that coming over our tall western trees with most standard
class gliders and you'll float halfway down a 400 ft patch before you
bleed off enough speed to make that nice low energy landing.

And, yes, I often touch down at over 60 mph (TAS). At a 6000 to 8000
foot density altitude in mountainous terrain, you know perfectly well
you shouldn't be going much slower. Now, your present glider obviously
doesn't have the benefit of nice draggy landing flaps. Try a 27, 20,
Ventus A/B, HP, etc., if you want to experience the real thing...

Marc