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Development of an advanced electromagnetic gun barrel

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5 Author(s)
Hurn, T.W. ; General Atomics, San Diego, CA, USA ; D'Aoust, J. ; Sevier, L. ; Johnson, R.
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An advanced electromagnetic gun (AEMG) barrel was developed for the US Air Force Wright Laboratory (Armament Directorate) to repetitively accelerate large mass projectiles. The AEMG barrel used 5-m rails, had a 50-mm square bore, and was designed to operate at a peak current of 1.5 MA (bore pressure 25 ksi). Key technical achievements included (1) an efficient barrel containment structure that weighs approximately 25% of a similarly rated clamped barrel; (2) an insulator material that retains surface resistivity after repeated firings; and (3) a high-velocity water cooling system designed to remove a peak heat flux of 5 MJ/m2 per shot. A 2-m prototype of the AEMG barrel was tested in a 4-MJ electromagnetic launcher test facility

Published in:

Magnetics, IEEE Transactions on  (Volume:29 ,  Issue: 1 )

Date of Publication:

Jan 1993

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