What are the names of these control stations?
Any further information or reference would be greatly appreciated.
Such as differences between surface and sub, does the pointers seat always have a backrest or any other component nomenclature.
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3”/50 Questions
redshirt
Joined: January 26, 2007
KitMaker: 270 posts
Model Shipwrights: 154 posts
Posted: Friday, July 25, 2008 - 11:14 PM UTC
3”/50 Questions
What are the names of these control stations?
Any further information or reference would be greatly appreciated.
Such as differences between surface and sub, does the pointers seat always have a backrest or any other component nomenclature.
What are the names of these control stations?
Any further information or reference would be greatly appreciated.
Such as differences between surface and sub, does the pointers seat always have a backrest or any other component nomenclature.
Gunny
Joined: July 13, 2004
KitMaker: 6,705 posts
Model Shipwrights: 4,704 posts
Posted: Friday, July 25, 2008 - 11:52 PM UTC
Ahoy, Paul!
Think this diagram may help you out a bit...
"The gun is positioned by manually operated training and elevating gear. The elevation limits on the gun are approximately 13 degree depression and 85 degree elevation. Training stops are installed to prevent training the line of fire into the ship's superstructure. After the sights are set, the gun is positioned by the pointer and trainer bringing their telescopes on the target. The ammunition is hand loaded and hand rammed. The Slater's guns used director control for more accurate firing.
The ammunition used in the 3"/50 cal. Gun is the fixed type designed for an initial velocity of 2,700 f.s. The maximum horizontal range is approximately 12,000 yards, and the maximum ceiling range about 21,000 feet. The projectiles used in the 3"/50 cal. Gun include antiaircraft, common, armor piercing, and illuminating. These projectiles all weigh approximately 13 pounds, and the different types vary in length from about 9 to 13 inches.
A typical 3"/50 cal. Mount is bolted to the deck and supports the roller-bearing paths and the training rack. The elevating and training hand wheel gear, seats for the pointer and trainer, and platforms for the sight setter and checker are attached to the carriage. The gun recoils about 11 inches. The Slater has Mark 21 mounts with fixed prism telescopes for the pointer, trainer, and sight checker. These, along with auxiliary peep-and-ring type open sights, are mounted on a sight yoke supported by the slide. The sight-setting gear is on the left side of the gun abaft the pointers station and the sight checker is stationed on the right side near the trainer."
Think this diagram may help you out a bit...
"The gun is positioned by manually operated training and elevating gear. The elevation limits on the gun are approximately 13 degree depression and 85 degree elevation. Training stops are installed to prevent training the line of fire into the ship's superstructure. After the sights are set, the gun is positioned by the pointer and trainer bringing their telescopes on the target. The ammunition is hand loaded and hand rammed. The Slater's guns used director control for more accurate firing.
The ammunition used in the 3"/50 cal. Gun is the fixed type designed for an initial velocity of 2,700 f.s. The maximum horizontal range is approximately 12,000 yards, and the maximum ceiling range about 21,000 feet. The projectiles used in the 3"/50 cal. Gun include antiaircraft, common, armor piercing, and illuminating. These projectiles all weigh approximately 13 pounds, and the different types vary in length from about 9 to 13 inches.
A typical 3"/50 cal. Mount is bolted to the deck and supports the roller-bearing paths and the training rack. The elevating and training hand wheel gear, seats for the pointer and trainer, and platforms for the sight setter and checker are attached to the carriage. The gun recoils about 11 inches. The Slater has Mark 21 mounts with fixed prism telescopes for the pointer, trainer, and sight checker. These, along with auxiliary peep-and-ring type open sights, are mounted on a sight yoke supported by the slide. The sight-setting gear is on the left side of the gun abaft the pointers station and the sight checker is stationed on the right side near the trainer."
1.90E_31
Joined: December 24, 2004
KitMaker: 252 posts
Model Shipwrights: 89 posts
Posted: Friday, July 25, 2008 - 11:55 PM UTC
Quoted Text
3”/50 Questions
What are the names of these control stations?
Any further information or reference would be greatly appreciated.
Such as differences between surface and sub, does the pointers seat always have a backrest or any other component nomenclature.
First, the upper areas you've circled are just the sights. They would be used by the pointer and the trainer to set the gun on target. The lower item is the fuse setter. That's used for AAA fire in order to get a burst at a certain height.
The picture is of a Mk. 22 mount. This is a surface mount rather than a submarine, or "wet" mount. The equivalent wet mount would either be a Mk 11 or Mk 19. Neither of these mounts had a fuse setter offset to the left side. Depending on the manufacturer of the mount, there may or may not be a backrest on the seat, or depending on the preference of the personnel using the mount. The mount itself is a dual purpose, or DP, mount, which means it's used for either AAA or surface actions. There are also single purpose, or SP, mounts. These were mostly used for surface actions, and did not have a fuse setter for the mount. You also have dry mounts, like this one, which were used on surface ships, and wet mounts, which were used on subs, and had special sealings in order to protect the gun and mount from corrosion.
Hope this helps.
redshirt
Joined: January 26, 2007
KitMaker: 270 posts
Model Shipwrights: 154 posts
Posted: Saturday, July 26, 2008 - 12:28 AM UTC
very helpful, Thank You!
Deflection setting and fuse setting – excellent, now I have search terms
I would have never guessed that it was a fuse setter, I was under the impression that all AAA over 40 mm was proximity fused.
The fuse setting mechanism is a particular problem. I am not calculating any satisfactory measurements from reference photos due to size, angle and localizing vanishing points.
Now that I know what I am looking for I might just find it!
Deflection setting and fuse setting – excellent, now I have search terms
I would have never guessed that it was a fuse setter, I was under the impression that all AAA over 40 mm was proximity fused.
The fuse setting mechanism is a particular problem. I am not calculating any satisfactory measurements from reference photos due to size, angle and localizing vanishing points.
Now that I know what I am looking for I might just find it!
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