2006-12-04 05:16:32 · 4 answers · asked by Michael B 1 in Cars & Transportation ➔ Aircraft
Are you asking for the specific speed, or what the term "dirty" refers to? The stall speed is the speed at which airflow over the top of an airfoil is no longer smooth and begins to separate from the surface of the wing. This speed is dependent on the gross weight of the aircraft and the camber of the wing. Bank angle (G force) also has an effect, but the flaps is where "dirty" comes in. It is slang in aviation, and in this context is meaning the flap/slats are deployed. It can also mean the landing gear are extended, but they have no effect on stall speed. Flaps and slats are lift devices on the wing which lower the stall speed of a wing by increasing it's camber. So the two thing we would need to know is 1) what gross weight are you at, and 2) which flap setting are you at.
2006-12-05 05:34:01 · answer #1 · answered by sc0tt.rm 3 · 0⤊ 0⤋
As with many other speeds, it varies with load. Under 135kias for a typical landing though, more like 120kias. That's just a rough number though.
2006-12-04 05:34:15 · answer #2 · answered by Chris H 6 · 0⤊ 0⤋
120 Exact, a French pilot told me that on a Frontier flight, our landing speed was around 140!
2006-12-05 14:59:56 · answer #3 · answered by predhead33 3 · 0⤊ 1⤋
.................just below barber pole ......... and depends on the bank
2006-12-04 06:40:55 · answer #4 · answered by spaceman 5 · 0⤊ 2⤋