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

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, RPV/UAV.

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Document Details

Document Type
Technical Report
Publication Date
Nov 22, 1993
Accession Number
ADA273595

Entities

People

  • Bryan J. Seegers
  • Jonathan A. Sherbeck

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Control Systems
  • Engineering
  • Engineers
  • Exhaust Systems
  • Fabrication
  • Gas Turbines
  • Load Cells
  • Measurement
  • Remotely Piloted Vehicles
  • Rotor Blades (Turbomachinery)
  • Sheet Metal
  • Turbine Stators
  • Turbines
  • Turbojet Engines
  • Turboprop Engines
  • Unmanned Aerial Vehicles

Readers

  • Aerospace Engineering

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems