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1–10 von 10 Ergebnissen
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    Convertible aircraft

    Klemin, A. | Engineering Index Backfile | 1949
    Schlagwörter: Helicopters

    Details of Sikorsky helicopter

    Engineering Index Backfile | 1940
    Schlagwörter: Helicopters

    Electronic leash developed by Sikorsky

    Berry, M. | Engineering Index Backfile | 1958
    Schlagwörter: Helicopters

    Hafner gyroplane

    Engineering Index Backfile | 1937
    Schlagwörter: Gyroplanes

    Helicopter's dual rotors disposed in Tandem offer certain advantages

    Engineering Index Backfile | 1945
    Schlagwörter: Helicopters

    Microwave powered helicopter

    Brown, W.C. | Engineering Index Backfile | 1966
    Schlagwörter: Helicopters

    Microwave-powered helicopter system

    Brown, W.C. / Mims, J.R. | Engineering Index Backfile | 1967
    Schlagwörter: Helicopters

    Practicability of design

    Sikorsky, S. | Engineering Index Backfile | 1946
    Schlagwörter: Helicopters

    Promising newcomer -- Mcculloch MC-4

    Berry, M. | Engineering Index Backfile | 1951
    Schlagwörter: Helicopters

    Rotocraft Airworthiness

    Klemin, A. | Engineering Index Backfile | 1948
    Schlagwörter: Helicopters