Re: Europa-List: Thank you, John Lawton.

[Steve Pitt <steven.pitt2@ntlworld.com>]

Jeff, You are confusing me (it does not take much I hear some say!) 
I thought I understood from other e-mails that it was necessary to 
maintain a gap in the flap to allow air to flow upwards when the flap is 
extended. However your photos suggest that your seal will stop any air 
going up through the flap at all stages of flight (or is this not the 
case?).
I can understand sealing the ailerons and have seen this quite clearly 
on gliders over this weekend, but they don't have flaps so it does not 
apply to them. 
Can someone please point me to an explanation of the aerodynamic 
theories surrounding this subject. Thank you
Steve Pitt
G-SMDH