RM> The story I heard was that there is a "death zone" between the
 RM> 7th and 11th (from memory) floors. No explanation was offered,
 RM> I can only think that below 7 they don't get up enough speed,
 RM> and from above 11 they start to glide or parachute. Or maybe
 RM> there's a critical speed at which they get unstable and can't
 RM> land squarely.

  All you need is a genuine catapault.

Regards,
Bob
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