Accession Number:

AD0739559

Title:

A Three-Axis Fluidic Stability Augmentation System

Descriptive Note:

Final technical rept. 15 Nov 1968-28 Oct 1970

Corporate Author:

HONEYWELL INC MINNEAPOLIS MN GOVERNMENT AND AERONAUTICAL PRODUCTS DIV

Personal Author(s):

Report Date:

1971-10-01

Pagination or Media Count:

300.0

Abstract:

The report covers the analysis, design, fabrication and laboratory tests of a three-axis hydrofluidic stability augmentation system for a UH-1-type helicopter. The design goal was to improve the handling qualities of the aircraft, without stabilizer bar, in the speed range of 60 to 120 knots. The control problem was analyzed and a system defined through use of analog computer simulation techniques. The defined system was mechanized into three separate controller packages, one for each axis. The system was subjected to temperature and vibration flightworthiness tests. The final tests conducted were closed- loop performance checks using an analog computer to simulate the aircraft dynamics.

Subject Categories:

  • Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE