by ModelMonkey » Fri Jul 14, 2023 2:54 pm
Some have argued that the 5"/54 cal. Mk.16 gun would have been installed within the same gunhouses enclosing the shorter 5"/38 cal. guns fit to the Iowa class, South Dakota class and North Carolina class battleships. But a 3D design study shows that the 5"/54 cal. Mk.16 gun does not fit in that gunhouse. The gun is simply too big. The 5"/54 cal. Mk.16 gun's breech extends so far to the rear of the trunnion that there is insufficient space behind the breech in the small 5"/38 cal. gunhouse to load the gun or provide sufficient space for recoil. Additionally, when fully elevated, the breech of the 5"/54 cal. gun pierces the 5"/38 cal. gunhouse floor. Since the 5"/54 gun can't operate in the 5"/38 cal. gunhouse, a new, larger gunhouse that can accommodate the 5"/54 cal. Mk. 16 gun is required, hence the need for the Mk.41 mount.
No official plans, drawings or photos of mock-ups of the proposed 5"/54 cal. Mk.41 twin-gun mount's gunhouse are known to exist. So some educated guesswork is needed. We can make a reasonable design based on a theoretical enlargement of the very real Mk.16 single-gun 5"/54 cal. mount fit to very real Midway-class aircraft carriers and later installed in the very real Japanese Akizuki-class and Murasame-class destroyers from 1958 to 1959 (photo below). Credible sources indicate that the Mk.41 twin-gun mount would have carried the same gun as the Mk.16 single-gun mount. Since the real 5"/54 cal. gun is known to fit and work in a real Mk.16 gunhouse, the real Mk.16 gunhouse can be used as a logical basis from which a theoretical Mk.41 gunhouse can be designed (rendering below).
While the Montana builder's model does indeed have 5"/38 gunhouses, these were probably just placeholders for the new gunhouses which had not yet been designed.
Since a Mk.41 gunhouse would probably be larger than the gunhouse enclosing 5"/38 weapons, the location of the barbette, or nearby bulkheads, would need to be adjusted to provide sufficient space for the Mk.41 gunhouse to operate.
Just my 2 cents.
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Some have argued that the 5"/54 cal. Mk.16 gun would have been installed within the same gunhouses enclosing the shorter 5"/38 cal. guns fit to the Iowa class, South Dakota class and North Carolina class battleships. But a 3D design study shows that the 5"/54 cal. Mk.16 gun does not fit in that gunhouse. The gun is simply too big. The 5"/54 cal. Mk.16 gun's breech extends so far to the rear of the trunnion that there is insufficient space behind the breech in the small 5"/38 cal. gunhouse to load the gun or provide sufficient space for recoil. Additionally, when fully elevated, the breech of the 5"/54 cal. gun pierces the 5"/38 cal. gunhouse floor. Since the 5"/54 gun can't operate in the 5"/38 cal. gunhouse, a new, larger gunhouse that can accommodate the 5"/54 cal. Mk. 16 gun is required, hence the need for the Mk.41 mount.
No official plans, drawings or photos of mock-ups of the proposed 5"/54 cal. Mk.41 twin-gun mount's gunhouse are known to exist. So some educated guesswork is needed. We can make a reasonable design based on a theoretical enlargement of the very real Mk.16 single-gun 5"/54 cal. mount fit to very real Midway-class aircraft carriers and later installed in the very real Japanese Akizuki-class and Murasame-class destroyers from 1958 to 1959 (photo below). Credible sources indicate that the Mk.41 twin-gun mount would have carried the same gun as the Mk.16 single-gun mount. Since the real 5"/54 cal. gun is known to fit and work in a real Mk.16 gunhouse, the real Mk.16 gunhouse can be used as a logical basis from which a theoretical Mk.41 gunhouse can be designed (rendering below).
While the Montana builder's model does indeed have 5"/38 gunhouses, these were probably just placeholders for the new gunhouses which had not yet been designed.
Since a Mk.41 gunhouse would probably be larger than the gunhouse enclosing 5"/38 weapons, the location of the barbette, or nearby bulkheads, would need to be adjusted to provide sufficient space for the Mk.41 gunhouse to operate.
Just my 2 cents.