Another big factor was that the contact-fused shells did not explode, because they felt no "contact" with the super lightweight construction of the Swordfish.

Another big factor was that the contact-fused shells did not explode, because they felt no "contact" with the super lightweight construction of the Swordfish. https://www.youtube.com/watch?v=PTO3JagV8gE https://www.youtube.com/watch?v=PTO3JagV8gE