Starting with Building HMS Thunderchild...

The stream begins with the fictional ironclad Thunder Child charging the Martian fighting machines as a torpedo ram.

The first design attempt turns Thunder Child's low profile and speed into a problem bounded by 1890s hulls, machinery, armour, and funnel capacity.

A late-Victorian HMS Renown provides a practical reference for balancing Thunder Child's guns, armour, shallow draft, and speed.

It reflects a real scouting role: smaller ships could close, observe the enemy, and report its position so heavier guns could engage from farther away.

Thunder Child's torpedo-rams are formidable only at very close range, where they must survive longer-ranged gunfire to strike.

The oldest portrayal is probably the most accurate, while the later versions are more imaginative.

A viewer request for forty 5.5-inch guns becomes an experiment in mounting a huge rapid-fire battery without losing every useful firing arc.

The massed-gun cruiser demonstrates how range, smoke, accuracy, and ammunition supply qualify the apparent advantage of an enormous battery.

A speculative fleet built around an Agincourt-like capital ship prompts a fast heavy cruiser with fifteen 9.2-inch guns and battlecruiser-like striking power.

The simulation's large heavy-cruiser tower prompts a distinction between battleship-like superstructures and HMS London's real appearance.

Yes for rapid design and visualisation, but experienced constructors would still challenge implausible outputs and rely on their own knowledge.

A request combining approximately 21-inch guns, a 21-inch belt, and 21-knot speed reveals how extreme armament drives displacement and forces compromises elsewhere.

A long-range firing scenario prompts a discussion of how early radar investment could affect naval gunnery in the Second World War.

The label "pre-dreadnought" can make capable earlier battleships sound merely obsolete instead of judging them in their own era.

The maximum-displacement Japanese battleship shows why hull proportions and seakeeping can overturn an otherwise impressive gun arrangement.

A heavily armed design becomes a logistics warning when it carries a separate calibre for nearly every gun position.

The super-battleship test separates a plausible accuracy problem with quadruple mounts from the simulation's excessive penalty on Japanese gunnery.

A simulated partial penetration prompts a reality check on the mass, explosive charge, and destructive energy of a near-21-inch naval shell.

A French Tribal-style destroyer leader combines heavy guns and torpedoes within the severe space and weight limits of a small hull.

Adding anti-aircraft weapons to a destroyer means choosing between more mounts, usable firing arcs, and the limited room available on deck.

A German Tribal-class counterpart shows how the simulation's hull choices and heavy torpedo battery shape a national destroyer comparison.

A destroyer fight is presented as a fast, dangerous contest to manoeuvre, find the range, and create a weapon opportunity.

An Italian hybrid destroyer meets sea conditions closer to the North Atlantic than the Mediterranean environment for which the type was conceived.

The British and French destroyer hulls appear visually reversed, showing how historical design knowledge helps identify a simulation's misleading assumptions.

Long-ranged 5.9-inch guns and heavy torpedoes make the Italian hybrid destroyer perform more like a compact cruiser than an ordinary destroyer.