Free-flight aerodynamic characteristic of the LDGP MK-82 CF bomb at subsonic and transonic velocities

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Authors
  1. Dupuis, A.D.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Free-flight tests were conducted in the Defence Research Establishment Valcartier (DREV) aeroballistic range on a 18.6% scaled model of the Low Drag General Purpose (LDGP) MK82 CF (Conical Fin) bomb from subsonic to low supersonic velocities. All the main aerodynamic coefficients and dynamic stability derivatives as well as nonlinear ones were determined using the six-degree-of-freedom single- and multiple-fit data reduction techniques. The pitch moment coefficient was highly nonlinear at low angles of attack in the subsonic and transonic regime. Estimates of the aerodynamic coefficients from three analytical codes and from one computational fluid dynamic analyses were compared with the free-flight results.

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Keywords
Aerodynamic coefficients;Finned projectiles;Flight dynamics;6DOF (Six degrees of freedom);Aeroballistic range tests;Gun launched;Linear theory;MLM (Maximum Likelihood Method);MLM Methodology;Mk-82 bombs;Transonic;Subsonic
Report Number
DREV-TM-2001-123 — Technical Memorandum
Date of publication
01 Sep 2001
Number of Pages
83
DSTKIM No
CA011719
CANDIS No
516270
Format(s):
Hardcopy;Document Image stored on Optical Disk

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