"Hilton" wrote in message
k.net...
Hi,

Just to throw in a little humor here as the 'lift' thread heats up:

Assume you're gliding in a Piper Warrior or Archer doing 80 knots in no
wind
conditions with the engine at idle. If you try open that little air vent
on
the pilot's left, it is forcibly sucked outwards. Makes sense until you
think that the air outside is standing still while the air inside is doing
100 knots and should therefore have a lower pressure!

Hilton
-----------------------------------reply------------------------------------------------

Hilton,

You have asked one of the easier questions related to pressure....it's the
dreaded merconian effect.

Gotta go fly,

Stephen