Accession Number:

AD0735766

Title:

Investigation of the Stabilator on the S-67 Aircraft

Descriptive Note:

Final rept.

Corporate Author:

UNITED TECHNOLOGIES CORP STRATFORD CT SIKORSKY AIRCRAFT DIV

Personal Author(s):

Report Date:

1971-10-01

Pagination or Media Count:

110.0

Abstract:

A flight test and simulation investigation of the S-67 stabilator was conducted. The S-67 stabilator, an all-movable, in-flight-trimmable horizontal stabilizer, is coupled to the longitudinal cyclic control in forward flight and may be uncoupled to free-float in hover. The flight tests included hover, transitions, low- and high-speed flight, autorotation, and stabilator bias actuator hardovers. In the simulation study, stabilator design was varied to establish trends due to design changes. The existing stabilator design will provide the aircraft with accepatble trim and static stability for the full G. W. and C. G. envelope. In-flight trimmability provides control of fuselage attitude independent of the rotor.

Subject Categories:

  • Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE