"Jay Honeck" wrote in message
news:qgijb.777606$YN5.761167@sccrnsc01...
All I know is I've sure never seen a plane that was too tightly sealed.
Most planes I've ridden in are at least 20 years old, and leak air like
sieves.

Mine doesn't help much by having a 1.5" gap between the back
of the canopy and the fuselage. :-) The heater's quite good though,
at least for temperatures I've flown in.

Paul