J. Dittmar

Observations from varying the lift and drag inputs to a noise prediction method for supersonic helical tip speed propellers

J. Dittmar, 1984 .

Interaction of rotor tip flow irregularities with stator vanes as a noise source

J. H. Dittmar, J. Dittmar, 1977 .

Reduction of fan noise in an anechoic chamber by reducing chamber wall induced inlet flow disturbances

J. Dittmar, 1978 .

Reduction of the noise of a model counterrotation propeller at cruise by reducing the aft propeller diameter

D. B. Stang, J. Dittmar, 1987 .

Some design philosophy for reducing the community noise of advanced counter-rotation propellers

J. H. Dittmar, J. Dittmar, 1985 .

Cruise noise of an advanced propeller with swirl recovery vanes

David G. Hall, James H. Dittmar, D. G. Hall, 1993 .