Accession Number:

ADA164918

Title:

Evaluation of Experimental Radio-Meteorological Measurements Package (ERMMP) Antenna Installed on U-21A Wing,

Descriptive Note:

Corporate Author:

ARMY AVIATION ENGINEERING FLIGHT ACTIVITY EDWARDS AFB CA

Personal Author(s):

Report Date:

1977-05-17

Pagination or Media Count:

5.0

Abstract:

During the testing there were no observed changes in the lateral control characteristics of the U-21A. No tendency for aileron oscillation, buffet or feedback into the U-21A control system was noted. At airspeeds above 150 KCAS the 14 inch diameter antenna sensors vibrated approximately or - one diameter and were bowed aft approximately 2 diameters from their static position. The lateral control pulses or steps did not cause any further excitation of the 14 inch antenna. Within the scope of this test the U-21A with ERMMP antenna installed can be operated within the flight envelope and operating limits of the current operators manual.

Subject Categories:

  • Aircraft
  • Telemetry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE