Displaying 12 of 12 results for author "Dittmar, James H."
Cruise noise of the 2/9th scale model of the large-scale advanced propfan (LAP) propeller, SR-7A / James H. Dittmar and David B. Stang.
Microform
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1987]
1987
0 resources
Potential reduction of en route noise from an advanced turboprop aircraft / James H. Dittmar.
Microform
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1990]
1990
0 resources
Detailed noise measurements on the SR-7A propeller : tone behavior with helical tip Mach number / James H. Dittmar and David G. Hall.
Microform
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1991]
1991
0 resources
An evaluation of some alternative approaches for reducing fan tone noise / James H. Dittmar and Richard P. Woodward.
Microform
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1992]
1992
0 resources
A concept for a counterrotating fan with reduced tone noise / James H. Dittmar.
Microform
[Washington, DC] : [National Aeronautics and Space Administration] ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1992]
1992
0 resources
The effect of swirl recovery vanes on the cruise noise of an advanced propeller / James H. Dittmar and David G. Hall.
Microform
[Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va.] : [National Technical Information Service, distributor], [1990]
1990
0 resources
Noise reduction for model counterrotation propeller at cruise by reducing aft-propeller diameter [microform] / James H. Dittmar and David B. Stang.
Microform
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, [1987]
1987
1 resource
Available online
Cruise noise of the SR-2 propeller model in a wind tunnel / James H. Dittmar.
Web resource
[Washington, D.C.] : National Aeronautics and Space Administration, [1989]
1989
1 resource
Available online
Cruise noise of the SR-2 propeller model in a wind tunnel [microform] / James H. Dittmar.
Microform
[Washington, D.C.] : National Aeronautics and Space Administration, [1989]
1989
1 resource
Available online
The alternative low noise fan / James H. Dittmar [and four others].
Web resource
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, September 2000.
2000
1 resource
Available online
The alternative low noise fan / James H. Dittmar [and four others].
Web resource
Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, October 2000.
2000
1 resource
Available online
A fan concept to meet the 2017 noise goals / James H. Dittmar.
Web resource
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, November 1998.
1998
1 resource