Video
What would the World's Major Navys look like in 1950 if WWII didn't happen? (Live)
Study What would the World's Major Navys look like in 1950 if WWII didn't happen? (Live), a Dr. Alex Clarke video from 6 Nov 2025, with 55 time notes. Topics include Aircraft Carriers, Alternate History, Battleships.
Time notes
- 4:46Setting the limits of a no-World-War-II fleet scenarioChapter
The opening defines a world where the general war is delayed, while smaller conflicts, rearmament, and technological competition continue shaping fleets.
- 19:09Nuclear weapons arrive later without a wartime research coalitionNotable Point
Absent the Manhattan Project's urgency and information pooling, atomic weapons remain research projects into the 1950s rather than reshaping the 1940s fleets.
- 21:47Why battleships remain central without wartime carrier proofChapter
Without the Pacific War's demonstrations, admiralties keep building fast capital ships while carrier aviation remains an expected but unproven future weapon.
- 25:34Yamato's 18-inch guns distort every rival building programNotable Point
Disclosure of Japan's 18-inch armament produces quick Allied counters, later prestige ships, and damaging budget pressure inside less balanced navies.
- 35:40QuestionWould Vanguard's speed make her especially useful in Europe or the Pacific, and would Britain build more than one?AnswerQ&A
Probably not more than one; her speed remains useful, but eight 15-inch guns soon look underarmed beside new fast battleships.
- 39:52Carrier evolution without the wartime building surgeChapter
Carrier fleets grow through improved prewar design lines rather than mass wartime construction, with Implacable- and Midway-like ships leading the progression.
- 50:54Fleet Shadowers become early-warning aircraftNotable Point
Prewar long-endurance radar aircraft could evolve accidentally into naval airborne early warning and anti-submarine platforms.
- 54:32Hazemeyer-controlled Bofors guns spread radar-directed air defenceNotable Point
Dutch work on radar-directed 40 mm Bofors mountings gives British and French fleets a prewar route toward more accurate layered air defence.
- 59:04Autoloaders and large destroyers redraw the cruiser hierarchyChapter
Cruisers divide between automatic 6-inch ships, automatic 8- or 9.2-inch heavy cruisers, and 12-inch large cruisers while destroyers erase the smallest cruiser category.
- 59:59QuestionCould the same no-World-War-II fleet forecast be extended to the smaller navies?AnswerQ&A
Not with the same confidence; their choices are too weakly constrained by surviving plans, while most Commonwealth construction belongs within the British forecast.
- 1:05:08Radar-guided weapons reshape capital shipsChapter
Steady peacetime research produces radar-directed guns, guided rockets, and early missiles that alter both capital-ship defenses and destroyer armament.
- 1:08:07Peacetime research produces different weapons, not technological stasisNotable Point
Without a major war, budgets stay weighted toward research rather than mass development, producing broader experiments but fewer standardized emergency weapons.
- 1:11:27QuestionWould the Royal Navy switch from broad research to mass development in 1941 because the Ten Year Rule pointed to war in 1942?AnswerQ&A
No. The rule's end removed an assumption of ten years' peace, but only an actual major war would trigger the wholesale shift toward development.
- 1:13:25QuestionWould cruisers still be classified as heavy or light, or would new classifications appear?AnswerQ&A
Heavy and light probably remain useful labels, but battlecruiser could shift downward to describe the largest cruiser types.
- 1:13:44QuestionWould different states bother developing radio-guided munitions if missiles might still be decades away?AnswerQ&A
Some would, especially Britain and the United States, which could fund guided weapons alongside guns as preparation for a future war.
- 1:20:53Destroyers divide into fleet and escort rolesChapter
Destroyer development produces larger fleet ships with guided weapons alongside cheaper escort types optimized for convoy and anti-submarine duties.
- 1:27:17Air-launched standoff weapons answer stronger fleet defensesNotable Point
Layered radar, gun, and rocket defenses encourage aircraft to launch guided bombs or rocket-assisted torpedoes before entering the most dangerous zone.
- 1:29:28QuestionHow many destroyers would the major navies have in this no-World-War-II scenario?AnswerQ&A
Hundreds overall, but exact totals are unknowable and the United States and Soviet Union could remain short because their politics favor larger prestige ships.
- 1:33:33Prewar research underlies many wartime breakthroughsNotable Point
Shipboard radar, rocket air defence, and guided weapons grow from 1930s work, while electronics limit how quickly radar-guided rockets can become true missiles.
- 1:42:13Submarines advance without wartime operational selectionChapter
Submarine fleets gain better propulsion, sensors, and weapons, but peacetime exercises may preserve concepts that a major war would have discarded.
- 1:44:49Carrier submarines compete with patrol range and regional specializationNotable Point
Japanese carrier submarines may grow as early strategic-strike boats, while most fleets prioritize patrol endurance and submarines sized for distinct theaters.
- 1:48:48Nuclear propulsion begins with carriers rather than submarinesNotable Point
Delayed reactor technology favors very large surface ships first, where removing propulsion fuel creates immediate aviation and endurance benefits.
- 1:54:16Escorts and amphibious ships expand the usable fleetChapter
Second-line escorts, escort carriers, and purpose-built amphibious ships give major navies the numbers needed beyond their battle fleets.
- 1:56:06QuestionWould India become a Dominion within this no-World-War-II timeframe?AnswerQ&A
Probably; Dominion status was already part of a long-running Commonwealth transition that could continue on its earlier timetable.
- 1:58:36QuestionWould coastal defenses and missiles create no-go zones for fleets?AnswerQ&A
Not absolutely; they raise the level of force and suppression required to enter, which may make another route more attractive.
- 2:01:20Routine sonar use creates an anti-submarine countermeasure raceNotable Point
A decade of fitting and exercising sonar and radar exposes defects early while giving submarines equal opportunities to devise counters.
- 2:05:08Light carriers support convoys and cruiser stationsNotable Point
The prewar cruiser-carrier idea gives light fleets reconnaissance, air direction, and convoy-defense work beyond their role as temporary fleet carriers.
- 2:08:31Aircraft speed pushes naval air defence farther outwardNotable Point
Faster aircraft force ships to engage farther away if crews are to retain the same few minutes for tracking and fire.
- 2:10:51Auxiliaries determine whether fleets can operate globallyChapter
Fast tankers, depot ships, repair capacity, and overseas infrastructure turn collections of warships into deployable fleets.
- 2:16:27Exercises can reward the wrong ships and tacticsNotable Point
Peacetime rules and false positives can make surface raiders or other vulnerable concepts appear more effective than combat would prove them.
- 2:30:00Alliances divide oceans because no navy has infinite shipsNotable Point
British and American fleets still need geographic burden-sharing, concentrating their best units in different primary theaters.
- 2:34:40QuestionWould faster naval propulsion development also change air and land forces?AnswerQ&A
Yes. Research would ripple between services, with institutional preferences shaping applications such as jet bombers and high-pressure naval boilers.
- 2:38:02QuestionWould any jet flying boats enter service during the 1950s in this timeline?AnswerQ&A
Possibly; slower airfield expansion preserves their infrastructure advantage, making a Saunders-Roe-like jet flying boat more practical.
- 2:39:06QuestionWould navies modernize older battleships with radar, rockets, and new guns, or build replacements?AnswerQ&A
They would mostly replace World War I ships, then modernize the much newer battleships produced by continuous 1940s construction.
- 2:41:10QuestionWhere is the point at which navies stop building battleships in favor of carriers and large missile cruisers?AnswerQ&A
Probably in the 1960s, after battleships first shift into defensive, escort, and bombardment roles and decline more gradually than they did historically.
- 2:43:07QuestionWould militaries still argue for intercontinental bombers without World War II?AnswerQ&A
Yes; independent air forces would use global bomber reach both as a military capability and as leverage against naval budgets.
- 2:44:17QuestionWould the British numbered type system for escorts still emerge if war were delayed?AnswerQ&A
Probably not by 1950; traditional class names would remain sufficient until a later alliance created a need for standardization.
- 2:45:20QuestionWould unsustainable costs lead to new naval treaties in the mid- or late 1940s?AnswerQ&A
Probably not; low trust, unreliable dictatorships, and a fast qualitative technology race make enforceable limits too risky.
- 2:47:37QuestionCould a serious Yugoslav navy emerge in this scenario?AnswerQ&A
It is possible, but Italian resistance to a rival Adriatic fleet could turn the buildup into a crisis or war.
- 2:48:04QuestionWould below-surface docking be useful for a covert submarine tender?AnswerQ&A
Probably not; it adds extreme engineering difficulty before surveillance makes submerged docking worth the cost.
- 2:49:08QuestionCould a civilian reactor project succeed without wartime access to money and scarce nuclear materials?AnswerQ&A
Yes, if the right political advocates secure the funding, people, and resources, though the timing remains uncertain.
- 2:49:42QuestionWould navies develop purpose-built landing ships such as LSTs in this timeline?AnswerQ&A
Yes, especially LPD-like ships from British and Japanese prewar work, though the exact wartime LST form is less certain.
- 2:50:15QuestionHow long could Göring prevent carrier-aircraft development in Germany without a war?AnswerQ&A
Not indefinitely; once a carrier exists, the navy can expose the Luftwaffe's failure to supply aircraft directly to Hitler.
- 2:51:19QuestionWhich class of warship would receive gas turbines first?AnswerQ&A
Destroyers, because gas turbines make the most immediate sense for their size and performance requirements.
- 2:51:43QuestionWould the major navies eventually retire every battleship?AnswerQ&A
Not necessarily; a few could survive as status ships and carrier-group escorts, especially if modernized battleships perform well in a later war.
- 2:53:08QuestionHow much slower would weapons development be without a major war before the 1950s?AnswerQ&A
Navies could still complete about three three-to-four-year weapon cycles by 1952, but the resulting systems would differ from historical wartime designs.
- 2:54:12QuestionWould navies build flight-deck cruisers or battlecarrier hybrids in this timeline?AnswerQ&A
Battlecarriers are unlikely, but a US flight-deck cruiser could emerge as an alternative response to British light carriers.
- 2:55:05QuestionHow would disguised merchant cruisers and surface raiders develop in this timeline?AnswerQ&A
Much as they did historically: long-range merchant hulls with hidden weapons, used to divert enemy resources rather than win fleet battles.
- 2:56:06QuestionWould Hitler continue prioritizing battleships, or could he be convinced to build a carrier-based force?AnswerQ&A
He would favor battleships because of prestige and gun size, though carriers might grow later if he remained in power long enough.
- 2:57:41QuestionWould any navy use a cruiser-carrier as a merchant raider?AnswerQ&A
Probably not; likely owners would keep carriers concentrated or use them to support cruiser sweeps rather than raid alone.
- 2:58:37QuestionWould the Royal Navy still develop command cruisers, or place command facilities in light carriers?AnswerQ&A
The command role survives, but larger light carriers or heavy cruisers are more plausible hosts than small Dido-like command cruisers.
- 2:59:46QuestionWould a delayed world war make the Allies take a less favorable stance toward communist powers in Asia?AnswerQ&A
Partly, but China would likely become a complex proxy war with Britain and America backing the Nationalists while Soviet and Japanese conflicts overlap.
- 3:01:00QuestionWould smaller navies buy light carriers from major powers or focus on coastal aviation?AnswerQ&A
Both paths are plausible, but British light fleets could eventually equip Dominion navies and support their regional cruiser forces.
- 3:02:30QuestionIf the Kuomintang won in China, what navy could it afford and operate?AnswerQ&A
It would probably start by ordering cruisers and build upward gradually as its industrial and operating capacity grew.
- 3:03:55QuestionWould a major naval conflict in the 1950s feature new but unproven technology, like the 1971 India-Pakistan war?AnswerQ&A
Yes; advanced systems and exercise-based doctrine would meet combat together, and some confident theories would fail immediately.