Progress Report on the Study of the Effect of Muzzle Brake Design on the Recoil of Guns, 1

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Abstract:

A caliber .50 ballistic pendulum for measuring the efficiency of various nuzzle-brake designs is described. The effect of 1 baffle spacing, 2 nozzle angle, 3 diffuser-cone angle and 4 outlet reversal angle has been determined. The results show that 1 There is not much gain in efficiency when the baffle spacing exceeds a 1-in. opening 2 calibers. 2 A nozzle angle of 30 deg with a baffle spacing of 1 14 in. is the most efficient. 3 A diffuser cone is not necessary to obtain greater efficiency in brake action. 4 A flat baffle is more efficient than a baffle having any degree of reversal angle up to 60 deg.

Author(s):
Simpson, Frank R. ; Smith, Nicol H.
Author Organization(s):
FRANKLIN INST PHILADELPHIA PA
Descriptive Note:
Progress rept.
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NDRC/DC-A-302, OSRD-4389
Contract/Grant Number(s):
OEMSR-1398
Monitor Series:
A-302, 4389, OSRD
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2.7_Experimentation; JCA_1.2.5_Lessons Learned; JCA_5_Command and Control
Communities of Interest:
Weapons Technologies
Descriptor(s):
*MUZZLE BRAKES, BAFFLES, FIRING TESTS(ORDNANCE), GUN MUZZLES, NOZZLES, RECOIL
Field(s)/Group(s):
Guns
Keyword(s):
ATI 24910, ATI COLLECTION
Report Date:
1944 Nov 14
Creation Date:
2002 Jun 05