Accession Number:

ADA273595

Title:

Design and Fabrication of an Ultra-Low-Cost Turboprop for RPV/UAV applications

Descriptive Note:

Final rept. 25 Jan-10 Sep 1993

Corporate Author:

M-DOT INC PHOENIX AZ

Report Date:

1993-11-22

Pagination or Media Count:

50.0

Abstract:

During the performance period, a heavy-wall ground-test turboprop engine was designed, fabricated and tested. The engine was comprised of turbine stator and rotor, exhaust duct, reduction drive, propeller, lubrication system and electronic control, all mated to the exhaust pipe of a Sundstrand TJ-90 expendable turbojet engine. Maximum horsepower attained was 118 at an inter- turbine temperature of 1536 deg F and output shaft speed of 2963 rpm at ambient conditions of 104 deg F and 29.61 in. Hg. Total weight of the complete engine was 68 lbs. The analog electronic control featured two speed governors, one each for gas-generator and drive-turbine speed, as well as a turbine inlet temperature limiting function. Turboprop, Low-cost turboprop, Expendable engine, RPVUAV.

Subject Categories:

  • Administration and Management
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE