"Le Chaud Lapin" wrote in message
ups.com...
: On Oct 16, 3:47 am, "Androcles" wrote:
: "Le Chaud Lapin" wrote in
glegroups.com...
: : On Oct 15, 7:54 pm, "Androcles" wrote:
: : "Le Chaud Lapin" wrote in
: ooglegroups.com...
: : : On Oct 15, 6:42 pm, "Gatt" wrote:
: : : "Le Chaud Lapin" wrote in
: : oglegroups.com...
: : :
: : : I read last night in another piloting book, again, that the
common
: : belief
: : : about the dynamics of airfoils is wrong,
: : :
: : : Yeah? Which one?
: : :
: : : I'd have to go back to bookstore to find the name.
: :
: : AHAHAHAHAHAHA!
: : Or back to sleep to dream again...
: :
: : Barry Schiff, in "The Proficient Pilot", "An AOPA Book", writes on
: : page 2:
: :
: : "There is, for example, this amusing fable: "Air flowing above the
: : wing has a greater distance to travel (because of camber) than air
: : flowing beneath the wing. Therefore, air above the wing must travel
: : faster so as to arrive at the wing's trailing edge at the same time as
: : air flowing underneath. This is pure nonsense."
:
: Since it is true Schiff must be a raving lunatic. Maybe you don't
: understand that travelling the greater path in the same time involves
: a greater speed.
:
: Perhaps you could explain in detail what you mean by this last
: statement. I am sure that there are plenty of people here would would
: like, for once, that a pilot explains what s/he means by this.
Really?
Ok, for plenty of cretins such as yourself...
Travelling 70 miles (distance) in one hour (duration of time)
is a speed of 70 mph by definition.
100 miles (the greater distance) in the same time (1 hour)
is 100 mph.
100 mph is faster than 70 mph.
People unaware of this simple fact are prone to getting
speeding tickets and losing their license.
Aircraft pilots are even more aware of it than motorists,
using their stop watches to compute distance.
In this video the air moves MUCH faster over the top of the wing
than it does over the bottom:
http://www.youtube.com/watch?v=KCcZyW-6-5o
Now you can go back to sleep and dream of Barry Schiff and
his "nonsense".