Algerie (1932): Marine National

The opening contrasts a broad naval history that gives Algérie little space with ship-focused accounts that treat her as one of the treaty era's most important cruiser designs.

Algérie broke with earlier French heavy cruisers by combining an external armour belt, compact machinery, and a single-funnel layout within treaty limits.

A detailed tour of Algérie's belt, torpedo bulkhead, armoured decks, transverse bulkheads, and turret protection shows where her displacement was invested.

Five boilers and geared turbines produced nearly 93,000 shaft horsepower and pushed Algérie to 32.93 knots on trials.

Algérie combined eight 203 mm guns with a strengthened 100 mm secondary battery, light anti-aircraft weapons, and catapult-launched reconnaissance aircraft.

Successive refits revised Algérie's bridge, rangefinders, aircraft arrangements, mast, and light anti-aircraft battery as threats and equipment changed.

Algérie's welded construction saved weight, while its careful adoption shows how engineers tested a developing technique alongside established riveting.

Three triple turrets might have raised Algérie's main battery from eight to nine guns, anticipating later French six-inch cruiser arrangements.

Algérie embodied France's recovery of shipbuilding, boiler, and turbine capability after an industrial position that looked bleak in 1920.

Built at Brest, Algérie passed through overlapping completion, commissioning, modification, and acceptance dates and was named for a century of French rule in Algeria.

Algérie's 10,160-ton standard displacement rose to 13,677 tons at full load, while her hull measured 186.2 metres overall.

High-pressure superheated steam made Algérie's compact machinery efficient enough for both high speed and an 8,000-nautical-mile economical range.

Algérie moved from Mediterranean and Spanish Civil War duties to Atlantic operations, gold escort, the bombardment of Genoa, and convoy protection.

Under Vichy control, Algérie's only described mission was escorting the repaired Provence to Toulon before receiving stronger AA weapons and an early French radar.

Algérie's captain delayed German boarders long enough to ignite demolition charges, denying a valuable heavy cruiser to Germany or Italy.

The treaty system prevented France from replacing every earlier cruiser with its best mature design, even as Algérie and Dunkerque demonstrated impressive national capability.

A cautious counterfactual uses France's achievement to examine whether the Netherlands should have developed capital ships at home or bought them from Britain.

Algérie becomes a case study in why military, strategic, national, and political will must align before technical achievement can produce wartime results.

The closing design exercise asks which paper cruiser, still constrained by treaty limits, might plausibly have bettered Algérie's balance.