Can I read Wind-tunnel study of slot spoilers for direct lift control on EtoBox?

Wind-tunnel study of slot spoilers for direct lift control by Andrisani, Dominick, II. is a book available to read on EtoBox.

What is Wind-tunnel study of slot spoilers for direct lift control about?

An investigation was conducted in a 300-mph 7- by 10- foot tunnel to obtain data for a slot spoiler direct lift control system. Slot spoilers are believed to have advantages over flap-type direct lift control (DLC) systems because of the small amount of power required for actuation. These tests, run at a Reynolds number of 1,400,000 showed that up to 78 percent of the lift due to flap deflection could be spoiled by opening several spanwise slots within the flaps. For a given lift change the drag change was significantly less than that which would be obtained by a variable flap DLC system. A nozzle-shaped slot was the most effective of the slot shapes tested

Author

Andrisani, Dominick, II.

Publisher

National Aeronautics and Space Administration, 1972.

Published

1972

Language

EN