Noise of a simulated installed model counter rotation propeller at angle-of-attack and takeoff/approach conditions

Announcement of availability

United States Federal Aviation Administration

A treatise on airscrews

Whyrill E. Park

Low-speed wind-tunnel tests of single- and counter-rotation propellers

Dana Morris Dunham

Power Plants for Aerospace Vehicles

Northrop Institute of Technology.

The effect of front-to-rear propeller spacing on the interaction noise of a model counterrotation propeller at cruise conditions

James H. Dittmar

Structure-borne noise estimates for the PTA aircraft

James F. Unruh

Flow-field survey of an empennage wake interacting with a pusher propeller

W. Clifton Horne