Performance Possibilities of the Turbojet System as a Power Plant for Supersonic Airplanes

Abstract

The performance of hypothetical turbojet systems, without thrust augmentation, as power plants for supersonic airplanes has been calculated. The thrust, thrust power, air-fuel ratio, specific fuel consumption, cross-sectional area, and thrust coefficient are shown for free-stream Mach numbers from 1.2 to 3. For comparison, the performance of ram-jet systems over the same Mach number range has also been calculated. For Mach numbers between 1.2 and 2 the calculated thrust coefficient of the turbojet system was found to be larger than the estimated drag coefficient, and the specific fuel consumption was calculated to be considerably less than the specific fuel consumption of the ram-jet system. The turbojet system therefore appears to merit consideration as a propulsion method for free-stream Mach numbers between approximately 1.2 and 2.

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Document Details

Document Type
Technical Report
Publication Date
Aug 26, 1947
Accession Number
ADA801408

Entities

People

  • George P. Wood

Organizations

  • National Advisory Committee for Aeronautics

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airplanes
  • Combustion
  • Combustion Chambers
  • Combustion Products
  • Exhaust Nozzles
  • Flow
  • Free Stream
  • Fuel Consumption
  • Jet Aircraft
  • Jet Engines
  • Mach Number
  • Propulsion Systems
  • Static Pressure
  • Supersonic Aircraft
  • Thrust Augmentation
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Combustion and Flow Dynamics.
  • Energy Conservation and Renewable Energy Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow