rexford Posted July 15, 2001 Share Posted July 15, 2001 I have posted a drawing on the following site that illustrates the impact and slope effect differences between AP, APC, APCBC and APBC when they strike 60° slope armor: http://musee-des-blindes.intranets.com/login.asp?link= Sign in as a guest, go to discussions, armor and projectiles, and the 122mm charts and high angle slope effects thread. The post will be the tenth on the thread, and the .gif file is attached. At 60° and T/D=0.8, APBC and APCBC slope effects are about 5% different (APBC is lower), and AP is much higher. At 60° and T/D=0.49, APBC slope effect is much lower than AP, and AP is lower than APCBC. [ 07-15-2001: Message edited by: rexford ] Link to comment Share on other sites More sharing options...
rexford Posted July 15, 2001 Author Share Posted July 15, 2001 In other words, APBC kills thin armor on highly angled hits. Link to comment Share on other sites More sharing options...
rexford Posted July 15, 2001 Author Share Posted July 15, 2001 The following address might be a faster way to access the tenth post on the thread, which analyzes the relative differences when different type rounds strike 60° armor: http://musee-des-blindes.intranets.com/r.asp?a=10&id=6623&t=6602 Link to comment Share on other sites More sharing options...
rexford Posted July 15, 2001 Author Share Posted July 15, 2001 Discussions with Nathan Okun on Russian APBC resulted in the following notes: 1. Russian APBC may be an attempt to gain the advantages of an armor piercing cap without the actual cap 2. Flat nose APBC may be more vulnerable to shatter, and may be less effective than APCBCC against face-hardened armor at vertical 3. Rounds without noses are often more effective on highly angled hits due to the energy that noses absorb and use going through the armor What data is out there, particularly in Jentz, regarding penetration ranges for 76.2mm T34 hits on PzKpfw III and IV? Link to comment Share on other sites More sharing options...
rexford Posted July 15, 2001 Author Share Posted July 15, 2001 I have posted the actual test results for 122mm APBC (angles from 0° through 70°) on the Saumur Intranets site as a group document, document access is limited to members. Site address is http://musee-des-blindes.intranets.com/login.asp?link= [ 07-15-2001: Message edited by: rexford ] Link to comment Share on other sites More sharing options...
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