Mandel Lenkowsky Early Vertical Flight Development Collection, 1936-1946

Mandel Lenkowsky, a civil aeronautical engineer, was involved with the United States Army in the early development of the helicopter

This collection includes notebooks containing scientific notes and mathematical calculations, a random assortment of journals and periodicals, published reference books, a few advertising and promotional brochures all pertaining to American experimental, military and commercial vertical flight from the late 1930s to the late 1940s. The collection also contains photographs of the following helicopters: Sikorsky XR-1, XR-4, YR-4, XR-5, XR-6, XR-6A, VS-300; Kellet XO-60 and XO-61; and Rotachute P-4. Also included are photographs of helicopters by Pitcarin, Landgraf, Greyhound Bus, Spratt, Berliner, Ochmichen, and DeBothezat

Physical Description:
2.18 cubic feet (2 records center boxes)

Date:
1936-1946

Restrictions
No restrictions on access

Creator
Lenkowsky, Mandel

Data Source
National Air and Space Museum Archives

Local number
1989-0099

Type
Photographs
Collection descriptions
Publications
Notebooks

Topic
Helicopters
Aeronautics, Military--Research
Aeronautics, Military
Aeronautics, Commercial
Aeronautics
Helicopters--Flight testing
Sikorsky (USA) XR-4
Sikorsky (USA) XR-5
Sikorsky (USA) XR-6
Sikorsky (USA) XR-6A
Sikorsky (USA) VS-300 Family
Kellet XO-60 Autogiro
Kellet XO-61 Autogiro
Sikorsky (USA) R-6 (H-6) Family
Sikorsky (USA) R-4 (H-4) Family
Periodicals

Mandel Lenkowsky, a civil aeronautical engineer, was involved with the United States Army in the early development of the helicopter

This collection includes notebooks containing scientific notes and mathematical calculations, a random assortment of journals and periodicals, published reference books, a few advertising and promotional brochures all pertaining to American experimental, military and commercial vertical flight from the late 1930s to the late 1940s. The collection also contains photographs of the following helicopters: Sikorsky XR-1, XR-4, YR-4, XR-5, XR-6, XR-6A, VS-300; Kellet XO-60 and XO-61; and Rotachute P-4. Also included are photographs of helicopters by Pitcarin, Landgraf, Greyhound Bus, Spratt, Berliner, Ochmichen, and DeBothezat

Physical Description:
2.18 cubic feet (2 records center boxes)

Date:
1936-1946

Restrictions
No restrictions on access

Creator
Lenkowsky, Mandel

Data Source
National Air and Space Museum Archives

Local number
1989-0099

Type
Photographs
Collection descriptions
Publications
Notebooks

Topic
Helicopters
Aeronautics, Military--Research
Aeronautics, Military
Aeronautics, Commercial
Aeronautics
Helicopters--Flight testing
Sikorsky (USA) XR-4
Sikorsky (USA) XR-5
Sikorsky (USA) XR-6
Sikorsky (USA) XR-6A
Sikorsky (USA) VS-300 Family
Kellet XO-60 Autogiro
Kellet XO-61 Autogiro
Sikorsky (USA) R-6 (H-6) Family
Sikorsky (USA) R-4 (H-4) Family
Periodicals

ID: 1989-0099