Flaps on take-off and landing

"Mxsmanic" ... wrote in message
...
I'm surprised that propwash would matter, since the airflow from the
prop should stay in roughly the same place no matter what the attitude
of the aircraft. That is, it would be like putting a big fan on a
sailboat to drive it forward.

Propwash matters, and you can definitely feel the effect in the controls. As
for the affect at different airspeeds and a lot of other questions you might
have, a picture tells a thousand words and I'd really recommend reading
"Stick and Rudder" by Wolfgang Langewiesche. The book is almost 60 years
old, but his explanations and illustrations are so good at cutting through
misconceptions that it's stood up very well with time.

Tom Young

The propwash puts downward pressure on the horizontal stabilizer.

mike

"Tom Young" wrote in message
...

"Mxsmanic" ... wrote in message
...
I'm surprised that propwash would matter, since the airflow from the
prop should stay in roughly the same place no matter what the attitude
of the aircraft. That is, it would be like putting a big fan on a
sailboat to drive it forward.

Propwash matters, and you can definitely feel the effect in the controls.
As for the affect at different airspeeds and a lot of other questions you
might have, a picture tells a thousand words and I'd really recommend
reading "Stick and Rudder" by Wolfgang Langewiesche. The book is almost 60
years old, but his explanations and illustrations are so good at cutting
through misconceptions that it's stood up very well with time.

Tom Young