roqf77 Posted September 15, 2005 Share Posted September 15, 2005 i have a document which in it lists a table with the heading...... maximum range for perforation? not penetration. does abybody know the difference? 0 Quote Link to comment Share on other sites More sharing options...
J Ruddy Posted September 15, 2005 Share Posted September 15, 2005 If you are lucky you will get penetration. If you are unlucky you will have a perforation. 0 Quote Link to comment Share on other sites More sharing options...
aka_tom_w Posted September 15, 2005 Share Posted September 15, 2005 perforation may JUST be partial penetration... or "spalling" maybe on the interior of the armoured plate penetration is obvious to any male -tom w 0 Quote Link to comment Share on other sites More sharing options...
simovitch Posted September 15, 2005 Share Posted September 15, 2005 In Engineering terms, "perforation" definitely means it has holes in it, not just dents. 0 Quote Link to comment Share on other sites More sharing options...
76mm Posted September 15, 2005 Share Posted September 15, 2005 Could it just be a bad translation? Or maybe it is BritSpeak? 76mm 0 Quote Link to comment Share on other sites More sharing options...
Juju Posted September 15, 2005 Share Posted September 15, 2005 Yah, like this guy I saw on TV yesterday, discussing defragmentation grenades. That was hilarious. 0 Quote Link to comment Share on other sites More sharing options...
flamingknives Posted September 15, 2005 Share Posted September 15, 2005 What's so funny? They're a great invention. Just lob one into your server room and hide behind the doorframe. 0 Quote Link to comment Share on other sites More sharing options...
John D Salt Posted September 15, 2005 Share Posted September 15, 2005 Originally posted by roqf77: i have a document which in it lists a table with the heading...... maximum range for perforation? not penetration. does abybody know the difference? "Penetration" merely means that the projectile sticks into the armour to some extent. "Perforation" means that it makes a hole all the way through the plate. In the system used by WW2 British ballistics testers, "P", "R" or "W" damage would be considered perforation. All the best, John. 0 Quote Link to comment Share on other sites More sharing options...
roqf77 Posted September 16, 2005 Author Share Posted September 16, 2005 thankyou. i was somewhat confused. in fact i got it from a table on a document from the national records offfice. it gives the maximum perforation range of apds v panther glacias at 1150m. The balleroy tests show apds could penetrate the panther glacias at 700m but 1150 is a little bit of a jump. im still confused. 0 Quote Link to comment Share on other sites More sharing options...
Other Means Posted September 16, 2005 Share Posted September 16, 2005 Originally posted by roqf77: thankyou. i was somewhat confused. in fact i got it from a table on a document from the national records offfice. it gives the maximum perforation range of apds v panther glacias at 1150m. The balleroy tests show apds could penetrate the panther glacias at 700m but 1150 is a little bit of a jump. im still confused. Any chance you could publish the complete results? It looks interesting. 0 Quote Link to comment Share on other sites More sharing options...
roqf77 Posted September 16, 2005 Author Share Posted September 16, 2005 yeah sure. ill scan it and put it up later or you can email me, and ill send you the scan. Here is a type out of the table. Range in yards.(sorry for the lameness of the table but its about as good as ican get it) 17 pounder Apds Mv approx 4,000 f.s Maximum range for perforation. Location, Angle, normal,30 degrees azimuth,thickness TURRET. Front. rounded 2500+ 2500+ 100 sides. 25 2500+ 2500+ 45 rear. 28 2500+ 2500+ 45 HULL. glacias 55 1150 immune 84 Nose 55 2500+ 1650 63 sides up 40 2500+ 2500+ 40 sides low 0 2500+ 2500+ 40 Rear 30 2500+ 2500+ 40 Tiger mark 1. Turret Front. 5 2500+ 2500+ 110 sides. 0 2500+ 2500+ 82 rear. 0 2500+ 2500+ 82 Hull Front U 10 2500+ 2500+ 110 front L 63 850 immune 63 Sides U 0 2500+ 2500+ 80 Sides L 0 2500+ 2500+ 63 Rear 8 2500+ 2500+ 82 [ September 16, 2005, 02:23 AM: Message edited by: roqf77 ] 0 Quote Link to comment Share on other sites More sharing options...
roqf77 Posted September 16, 2005 Author Share Posted September 16, 2005 for us 76mm hvap. Mv 3,400 f.s Turret front sides and rear. normal and at 30 degrees. 2500+ Hull Glacias, immune at normal and 30 degrees. nose 950 at normal and 100 at 30 degrees. Sides and rear 2500+ at normal and 30 degree. TIger tank mark 1. turret, front 2500+ at normal and 1700 at 30 degrees. Sides and rear 2500 at normal and 30 degrees. Hull. upper front 2500 at normal and 1900 at normal. front lower immune at both. Sides and rear 2500 at normal and 30 degree's. 0 Quote Link to comment Share on other sites More sharing options...
roqf77 Posted September 16, 2005 Author Share Posted September 16, 2005 the document is w0291/741. comparing the effectivness of us 75 and 76mm guns. I was quite surprised to find this table in their! 0 Quote Link to comment Share on other sites More sharing options...
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