Weapons That Didn't Pan Out


Ad Honorem
Jan 2017
the Valiant tank , a masterpiece of engineering disaster

it start at 5:40 m



Forum Staff
Feb 2009
Eastern PA
The Japanese tried attaching bombs to balloons and sending them over the US, resulting in the only war death on US soil during WW2. I'd say it didn't work out as well as they expected.

Japan's Secret WWII Weapon: Balloon Bombs

The Japanese harnessed air currents to create the first intercontinental weapons—balloons.


Balloon bombs aimed to be the silent assassins of World War II. Hitching a ride on a jet stream, these weapons from Japan could float soundlessly across the Pacific Ocean to their marks in North America.

.Japan's Secret WWII Weapon: Balloon Bombs


Ad Honorem
Jan 2011
South of the barcodes
the Valiant tank , a masterpiece of engineering disaster

it start at 5:40 m

Yeah but the Valiant was a prototype that was set aside after testing and never put into use.

Far more of a waste is the Covenanter

And at least we got some use out of them for training and defence after Dunkirk

The American M7 was far worse, no clue what they were building, spent money on developing it, built the factories to produce it...and then though maybe not and went back to Shermans instead

Medium Tank M7 - Wikipedia
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Forum Staff
Apr 2010
T'Republic of Yorkshire
The Yamato class of ships (including Shinano) didn't exactly pan out...

Until they were sent into space anyway.

Lord Fairfax

Ad Honorem
Jan 2015
Changing trains at Terrapin Station...

About the only country that didnt have a failed multi-turret was the USA and thats only because their military didnt have the money so they compensated by building steel boxes and poking MGs out of every available surface like it had been designed by a 10 year old.

Horrible concept!
Yes, the superlative M-2, the tank had 37mm turret + up to NINE MG's...

Even more embarrassing, not a mid 30's tank, it was introduced in 1941. :confused::confused:

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Sep 2017
United States
Combined arms and better tactics allowed the Macedonians to defeat the Greeks and others. At best it was a cheap way of taking untried skirmishers and turning them into line infantry that could compete with a hoplite who had trained and prepared for that position since adolescence.
I think that's a bit of an understatement (combined arms were incredibly important though, and the Successors lost touch with this aspect in some ways).

Even in your statement look at that huge difference though. If you've effectively taken an untested, light warriors and made them able to go toe-to-toe with warriors who've more or less prepared for war for much of their lives... that's pretty significant. It's only a few levels below the "untrained peasant shoots career warrior knight with gun".