Strain gauge measurements of forces acting on the nose gear and main gears of the commuter aircraft SAAB SF-340 are reported. During initial flight tests, forces in the longitudinal, transversal, and vertical directions were measured for various maneuvers such as takeoff, landing, taxiing, and towing. The investigation revealed high transversal loads at the main gears at touch down. The nose gear is most severely strained when steering during taxiing run and when the aircraft is towed connected to a tractor with a tow bar. The results from such initial measurements formed the basis for a subsequent investigation with on line data acquisition of landing gear loads on a commuter aircraft in service at Swedair AB. The data acquisition system and the data analysis methods are described. The data acquisition was continuously carried out during nearly six months including various parameters such as different aircraft weight and static landing gear loads. Results from these measurements are presented as cumulative exceedances of longitudinal, transversal, and vertical loads obtained from the rainflow count analyses performed online during the measurements.


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    Title :

    Long Time Measurements of Landing Gear Loads on Saab SF-340 Commuter Aircraft


    Contributors:

    Publication date :

    1990


    Size :

    27 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Long Time Measurements of Landing Gear Loads on SAAB SF-340 Commuter Aircraft

    Gustavsson, A. I. / Blom, A. F. / Helmersson, L. et al. | British Library Conference Proceedings | 1991


    Long Time Measurements of Landing Gear Loads on SAAB SF-340 Commuter Aircraft

    A. I. Gustavsson / A. F. Blom / L. Helmersson | NTIS | 1990