Accession Number:

AD0656438

Title:

RESULTS OF MAIN ROTOR RADAR BLADE FLIGHT TESTS, MODEL UH-1B, S/N AF622023

Descriptive Note:

Corporate Author:

BELL HELICOPTER TEXTRON INC FORT WORTH TX

Personal Author(s):

• Mangum, J. A.

Report Date:

1965-11-17

Pagination or Media Count:

183.0

Abstract:

Main rotor blades configured with leading edge radar antennas were installed on a Model UH-1B Helicopter, SN AF 62-2023, Bell No. 543, for both ground and flight tests. Load level tests and basic electromagnetic radiation pattern tests were successfully completed. Load level tests confirmed previous measurements. All measured loads and vibrations were identical to production 204 blades. Flight characteristics are identical to a production UH-1B helicopter. Radiation pattern tests were very successful and proved that the use of rotor blade antennas as a radar transmitting device is feasible. Based on preliminary analysis of flight test data, it is concluded that use of the main rotor blades for radar transmissions is practical.

Descriptors:

• *AIRCRAFT ANTENNAS
• *HELICOPTER ROTORS
• *RADAR ANTENNAS
• *ROTOR BLADES(ROTARY WINGS)
• ANTENNA RADIATION PATTERNS
• FEASIBILITY STUDIES
• FLIGHT TESTING
• LEADING EDGES
• STATISTICAL DATA

Subject Categories:

• Helicopters
• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE