The National Swedish Road and Traffic Research Institute has carried out measurements of the rolling resistance of an aircraft wheel caused by dry snow. The wheel was equipped with a tire of the dimension 12.50-16, which is used on aircrafts of types CV-440 and N-262. The measurements were carried out at a static wheel load of 38.800 N (3.960 kp) and a tire air pressure of 410 kPa (60 psi) and 550 kPa (80 psi) respectively. The speed during the measurements was 50 km/h. The rolling resistance seem to increase approximately proportionally to the increase of the snow depth at a constant tire air pressure. Increased tire air pressure causes a decrease of the rolling resistance. This effect indicates that tires with high air pressure should be used on aircraft wheels when taking off from snow-covered areas, even if the load on the wheels does not require a high tire air pressure.


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    Title :

    Flygplanshjuls Rullmotstand i Torr Nysnoe (Rolling Resistance of Aircraft Wheels in Dry Snow)


    Contributors:
    B. Kihlgren (author)

    Publication date :

    1977


    Size :

    38 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English







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