Aircraft Combat Radius Calculation Procedure for Various Mission Profiles and External-Store Configurations

Abstract

An extension and revision of the HARD-1 (Handy Approximate Radius Determination) combat radius calculation procedure described in RM-5280 for aircraft carrying external stores. HARD-3 calculates the radius capability for a particular aircraft having known climb and cruise performance, fuel consumption, drag, etc. The method is somewhat more complex than HARD-1 but it provides greater flexibility and improved accuracy: a wider choice in cruise conditions is now available, and the effect on radius of non-distance-gaining fuel allowances is computed more accurately. The computer program allows for variation in the disposition of empty fuel tanks and for target-bound refueling. Although designed specifically for a ground-attack mission, the procedure may be adapted for other missions. The results compare favorably with estimates made by following the mission-planning procedures described in military flight manuals. The JOSS program is included, along with a sample set of calculations and an explanation of the equations used.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
AD0688482

Entities

People

  • C. M. Weber

Organizations

  • RAND Corporation

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Aircrafts
  • Altitude
  • Computer Programs
  • Computers
  • Equations
  • External Stores
  • Fuel Consumption
  • Fuel Tanks
  • High Altitude
  • Military Operations
  • Mission Profiles
  • Munitions
  • Refueling
  • Sea Level
  • Warfare

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Computer Science.
  • Fluid Dynamics.