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I seen the discussion related to improved wood (actually wood-phenolic plastic composites with phenolic contents above plywood) in https://www.alternatehistory.com/forum/threads/wi-panic-fighter-1938.444821/ Improved wood (densified wood, engineered wood) was advocated for fighter production...

Japan and England did start at somewhat similar manner. Both were large island groups of similar size separated from well-civilized mainland by narrow straits. Both were conquered several times by waves of migrants bringing new tech and social rules. Both have consolidated as single state in...

In early Sunday morning 25 August 1940, the unintended ignition has happened in Mobara gas field(1), under murky circumstances. The fire was out of control in a few hours, destroying pumps, storage tanks, and accomodations. Before nightfall, the huge explosions have started to propel the flaming...

An offshot from https://www.alternatehistory.com/forum/threads/why-aerial-refueling-came-too-late-for-wwii.462555/ IOTL, northern route of air bridge between Germany and Japan was considered, but rejected because range of existing aircraft required an overflight of Soviet territory, which was...

From wikipedia, https://en.wikipedia.org/wiki/Aerial_refueling#History seems the ideas and technology for effective aerial refueling was available even before WWII (in 1938 looped-hose refueling was operational technology, at least for British). The understanding of benefits of aerial refueling...

I see the discussion in the https://www.alternatehistory.com/forum/threads/how-the-mitsubishi-zero-won-the-battle-of-britain.461199/ seems to derail to the German-Japanese cooperation topic, and therefore create a more focused thread. Possibly questions need to be clarified: 1) How much OTL...

IOTL, first operational SAM was Nike Ajax produced in 1953, after 8 years of development. Important harbingers of SAM were late WWII radar proximity fuses, photodiode-triggered guns of German interceptors, early unguided rockets, radio-guided glide bombs, and acoustic-homing torpedoes. Could...

With the current political situation, launching nuclear reactors to orbit is nearly impossible. What is commonly overlooked, is what at least 15 RORSAT reactor cores (each filled with 30kg 90% enriched uranium) are already orbiting graveyard orbit 900-1000 kilometers high, at 65 degrees...

With the OP being the Russian colonists in Sagallo become aware of the French plans to suppress settlement at some point between colony building and arrival of French naval vessels, what can be done to ensure persistence of their New Moscow colony? https://en.wikipedia.org/wiki/Sagallo

Chapter 1. The OP. USS Indianapolis (that time on a secret mission to deliver uranium and parts of nuclear bomb to North Marian Islands) has developed an rudder trouble 25 July 1945, just few hundred kilometers short of her destination, leaving her uncontrollable and running a short cycles...

This is scenario from the human-vs-human wargame. POD: In summer 1941, operation Barbarossa has failed catastrophically due combination of German inept strategic command and strategic blunders related to war production. By December 1941, Soviet forces were on the eastern outskirts of Germany...

Propose exactly the largest warship (in gross tonnage) which can be sunk in single shot by a single soldier using SFM (shoulder-fired missile)? Following limitations apply: 1) No support for SAM bearer - i.e. shots from helicopter or boat with crew other than SAM bearer are not allowed 2) Must...

IOTL, Japan built (or converted) both auxiliary carriers and auxiliary cruisers. With skew to auxiliary cruisers. https://en.wikipedia.org/wiki/List_of_Japanese_auxiliary_cruiser_commerce_raiders After all, cruiser conversion was much cheaper compared to carrier conversion, and combat...

Seems the methods to bond dry lubricants to metals using a bakelite binder was developed unusually late (patent dating 1960) https://www.google.com/patents/US3073761 I suspect the dry lubrication would allow higher-temperature machines to be built (dry lubrication is usable to 400C while...

23 March, 1638, near the Edo castle . The afternoon weather was fine, and cherry have just started to blossom. Mitsuhisa Shimazu, the heir of the powerful Satsuma Domain and the hostage of the Tokugawa Shogunate in Edo, was watching the arrival of the daily mail dispatch from the window of his...

This thread is going to combine multiple low-probability PODs in the history of the Second Sino-Japanese War, Pacific War and Soviet invasion to Manchuria to produce the outcome expected would the Japanese top leadership be unite, possessing nearly inhuman foresight and yet handicapped with...

What if Japanese cruiser Ibuki will be cancelled together with new Yamato class battleships back in 1942, and freed resources used to produce submachine guns? 1) How much SMGs Japan is likely to have at the end of the war? 2) Likely last positions and date of the war? Both on Pacific theatre...

What if: Japanese retained the 9th division in Okinawa until April 1945. https://en.wikipedia.org/wiki/9th_Division_(Imperial_Japanese_Army) Background: Japanese on main Okinawa island had effectively 3 divisions (24th division full strength, 2 regiments of 62nd division, small elements of...

Alternative history challenge: make independent Fiji and Samoa (including American Samoa) in 1930-1940. May also include greater independence for Tonga and Gilbert and Ellice Islands (Tuvalu), and other Pacific islands not specifically listed here. Also, how such independence will affect the...

What if the Great Meteor Procession do not happen in 1913? https://en.wikipedia.org/wiki/1913_Great_Meteor_Procession Imagine for some small perturbation, the Great Meteor Procession come to relatively stable (most likely highly elliptical, but with apogee well below Moon) Earth orbit in...