TEST OF 20MM MOUNT MARK 10, WITH OERLIKON MODIFICATIONS

reportActive / Technical Report | Accession Number: AD0010496 | Open PDF

Abstract:

Tests were conducted to determine the comparative performance characteristics of the Oerlikon-modified and standard Mk 10 20-mm mounts. The modification consists of spring mounting the gun in the cradle and changes in the firing mechanism. With standard barrel springs and standard ammunition, the modified cradle increased the rate of fire by 53 roundsmin. With standard barrel springs and Oerlikon ammunition, the increase was 135 roundsmin. The Oerlikon ammunition fired on the average about 100 roundsmin faster than standard ammunition with the modified cradle. The highest rate of fire was 635 roundsmin, and was obtained with the modified mount, modified mechanism, standard barrel springs, and Oerlikon ammunition. The average muzzle velocity of 22 rounds of blind-loaded, traced Oerlikon ammunition was 2971 ftsec the time of flight to about 1000 yd ranged between 1.26 and 1.33 sec. The Oerlikon modifications to the 20-mm mount and firing mechanism also decreased the characteristic vibration.

Author(s):
Berry, C. D. ; Collins, R. V.
Author Organization(s):
NAVAL WEAPONS LAB DAHLGREN VA
Supplementary Note:
DOI: 10.21236/AD0010496
Pagination:
0043

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):
NWL-1119
Monitor Series:
NWL
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_6.4.1_Secure Information Exchange; JCA_5_Command and Control; JCA_5.2_Understand; JCA_6.4_Information Assurance; JCA_6_Net Centric
Communities of Interest:
Weapons Technologies
Descriptor(s):
*GUN MOUNTS, *NAVAL GUNS, FIRING MECHANISMS(WEAPON), MODIFICATION, TIME, FIRING MECHANISMS(AMMUNITION), FIRING RATE, MUZZLE VELOCITY, HIGH RATE, VIBRATION, AMMUNITION
Field(s)/Group(s):
Guns
Keyword(s):
20 MM ORDNANCE ITEMS
Report Date:
1953 Apr 20