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Re: Small Calibre guns penetrating pressure hull?
Posted by: ThomasHorton ()
Date: April 27, 2011 02:14PM

The pressure hull of a Type VIIC was .88 inches thick

[uboatarchive.net] Page 37

The penetration of the .50 round is dependent on the range as well as a multitude of other factors.

At 200 meters the .50 M2 Ap round can penetrate .9 inches of hardened armour

At 600 Meters the same round can penetrate .5 inches of hardened armour

[www.inetres.com] scroll to the bottom

So whether a .50 cal could damage a submarine would depend on the range and how many rounds impacted at a specific point.

The angle of impact would have a very large effect on armour penetration

The Hispano 20MM round (1942) seems to have a armour penetration of about .87 inches

[www.wwiiequipment.com]

Again range and impact angle will affect these figures.

I hope this helped out a little

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Subject Written By Posted
Small Calibre guns penetrating pressure hull? Simon D 04/27/2011 10:56AM
Re: Small Calibre guns penetrating pressure hull? ThomasHorton 04/27/2011 02:14PM
Re: Small Calibre guns penetrating pressure hull? Ken Dunn 04/27/2011 04:14PM
Re: Small Calibre guns penetrating pressure hull? Simon D 04/27/2011 10:49PM


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