A flight test program has been conducted to evaluate improvements in handling qualities of the S-67 resulting from the addition of a Feel Augmentation System (FAS). The pitch channel of FAS applies to the cyclic stick a force proportional to the load factor resulting from aircraft pitch rate. Roll FAS provides control harmony, and the collective stick shaker warns of high rotor control loads. Subjective reactions of contractor test pilots, combined with flight test results, indicated that a satisfactory load factor force gradient was 18-25 pounds per g. Furthermore, this nearly constant force gradient was insensitive to changes in airspeeds, collective setting, or attitude during maneuvers. (Author)


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    Title :

    S-67 Aircraft Feel Agumentation System Flight Evaluation


    Contributors:

    Publication date :

    1972


    Size :

    68 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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