Condensation is forming in visible clouds because a sudden pressure
drop has cooled the air, bringing the air in that region to a temperature/pressure state
where the water vapor condenses. The pressure over the wing, in particular is lower than
the surrounding air and the molecules are actually further apart, not closer together. No
"pushing" is going on. That's what you see the clouds form on the lee side of
aircraft protrubences (like the canopy) or other areas where there is some flow
separation, and not ahead of them - that's where the real compression of the air (pushing)
is going on. |
The General Dynamics/Grumman F 111 is an American made
all-weather attack aircraft.
PERFORMANCE: F-111D: Wing
span: 19,2 m.(wings forward) Wing span: 9,74 m.(wings swept) Length: 22,40 m. Height: 5,22
m. Max. speed: Mach 2.5 (2655 km/h, 1650 mph.) Max. altitude: 60,000 ft.(18290 m.) Empty
weight: 47,481 lbs.(21537 kg.) Max. weight: 100,000 lbs.(45359 kg.) Powerplant: two Pratt
& Whitney TF30-P-9 afterburning turbofans Thrust: 20,640 lbs.(9362 kg.) (thrust each,
with afterburner) |