Patreon 90: How were warship autoloader turrets prototyped? A development History

The Mark 71 raises the question of how a modern eight-inch naval gun could have altered surface firepower and ship design.

A concise definition separates an autoloader from the gun itself and identifies the ammunition-handling jobs it replaces.

A direct range comparison shows how much development headroom an eight-inch naval gun offered with rocket-assisted or other modern ammunition.

A short technical distinction explains why electromagnetic-launch terminology matters to maintenance as well as propulsion physics.

Early Royal Navy ideas explored multiple barrels and revolving chambers before designers concentrated on faster breech mechanisms.

Designers considered several sealing arrangements, but the large-gun solution remained complicated and largely theoretical.

The live recollection favors a twelve-inch sabot proposal, with the figure left explicitly unverified.

The rise from small quick-firing weapons to 4.7-inch and six-inch guns shows why sealing and human endurance constrained practical fire rates.

No. A check during the exchange corrects the caliber to 47 mm.

Britain's sustained naval spending and competing gun firms explain why so much early large-caliber rapid-fire work appears in Royal Navy records.

It limits the opening period, but mainly buys time for crews to establish a continuous supply from deeper ammunition spaces.

About 45 kilograms, or roughly 100 pounds, per shell.

Design discussions linked autoloading or heavy mechanical assistance to several interwar British capital-ship projects.

To an extent, yes, although both are better understood as mechanically assisted systems than as complete autoloaders.

The surviving record is very incomplete; researchers know more papers existed but have not yet located them.

Moving the shell is only part of the problem. Ammunition selection and a safe loading cycle under battle damage are harder to automate.

A firing-rate calculation shows why a successful British autoloader could outweigh a rival's nominal caliber advantage.

Vickers appears to have worked on the autoloading system, while Elswick may have been involved through Armstrong gun development.

Smaller shells helped, but multiple ammunition types and the machinery needed to select them made reliable automation difficult with period technology.

Both have tradeoffs. An interrupted screw would probably be preferable in a turret with more than two guns.

Yes, but it would need tightly controlled stowage, powered transfer, simple sensing, and human operators to verify each loading step.

Not safely at sea; heavy shells are better stored vertically and secured so they cannot roll with the ship's motion.

The postwar question was comparative cost and strategic need, especially if the Soviet Union resumed capital-ship construction.

No; that remains assisted loading until machinery also handles the selection and transfer into the powered loading path.

Once rounds enter the hoist, changing ammunition type usually means firing what is already in the loading path first.

Not necessarily; the ramming angle would still be constrained by the mounting and the technology already used to load the gun.

Large turrets already depended on powered rammers, hoists, and movement, so emergency power was already a relevant requirement.

Usually not; a heavy shell already in the hoist would need lifting gear, so the turret normally fires it before changing ammunition type.

Capital-caliber shell weight makes a powered route from the magazine more practical than local ready rounds.

Rapid loading offered a way to reconsider 14-, 15-, and 16-inch guns as air-defense weapons in a postwar capital-ship race.

They were technologically easier at cruiser caliber, but the Royal Navy's interwar focus remained on capital ships.

Probably not. The gun loaded automatically, while magazine-side handling appears to have remained assisted.

The Mark 26 illustrates the performance and complexity of a high-angle, rapid-firing British six-inch mounting.

Not for that war, but a large airburst shell could have a different hypothetical value against a dense drone swarm.

The live answer is yes from memory, with the claim left explicitly unverified.

The Des Moines class doubled the sustained rate of earlier eight-inch cruisers and demonstrated the fighting potential of automatic heavy guns.

Earlier British eight-inch autoloaders could have redirected Belfast and Edinburgh from quadruple six-inch turrets to rapid-firing heavy guns.

Probably: they would still age, but low fuel demand and the need for fast nuclear-carrier escorts would make retention more attractive.

Higher six-inch fire rates can demand far more rounds and magazine volume than a slower but harder-hitting eight-inch battery.

Potentially yes, if designed for it; the ship could range first and use the maximum rate once the firing solution was established.

Not necessarily: their participation would still depend on Holland's orders, the sea state, and the capabilities of the surrounding force.

Yes, although declared loads could understate the magazine capacity a ship was actually designed to carry.

Yes; sustaining the firing rate while carrying multiple shell types imposed a major magazine and ship-design burden.

Vertical launch systems carry the rate-of-fire logic of autoloaders into missile warfare by removing mechanical launcher handling.

A closing synthesis links caliber choices to the balance between shell effect, firing speed, and the probability of repeated hits.

Below heavy-cruiser caliber, 1930s machinery often had to compete with human crews that could already load the weapons faster.

Aegis has growth potential, but major gains require sustained funding and a new hull architecture with better power, cooling, and computing support.

Roughly 57-60 mm might be the upper limit, but 40 mm remains the practical sweet spot.