Comments by "Steve Valley" (@stevevalley7835) on "The Drydock - Episode 155" video.

  1.  @jsl985  from my reading, the USN wanted the same rate of fire per mount, as the single .50 cal machine guns they were replacing. NavWeaps gives a rate of fire for the .50 machine gun of 450-600rpm. The 1.1 cycle rate was 150rpm. with a practical rof of 100rpm, so a quad 1.1 mount throws 400-600rpm. same as a single M2. Their insistence, in the early 30s when the 1.1 was being developed, on rof, was probably based on the guns being aimed by the Mk 1 eyeball, so the more rounds the better, in the hope that a few would hit. The 1.1" shell weighed .416kg, vs 48.5grams for the M2, so the rounds that did hit would do a lot more damage. For comparison the 25mm Bofors of the mid 30s threw a .25kg shell, the Japanese 25mm fired a .26kg shell. On paper, the 1.1" looks good, heavier shell, higher altitude capability. If only BuOrd had done the work to make it reliable.
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