BTTDB

Vasa-photo

Back to the Drawing Board: Vasa

Although Vasa was designed and built by an experienced Dutch shipbuilder, Henrik Hybertsson, she was larger than any vessel he had previously worked on.

Parrott

Back to the Drawing Board: Rifled muzzle-loading artillery (RML)

The mid 19th century saw a revolution in naval weapons technology – smooth-bore muzzle-loading artillery, which had changed little for over 300 years, was suddenly supplanted by far larger rifled guns firing steel armour-piercing shot and explosive shells to ranges far beyond anything achieved even 50 years earlier.

T-64-(larger)

Back to the Drawing Board: the T-64 Tank

Although its ‘high-tech’ features, such as an auto-loader for the main armament and its ultra-compact multi-fuel engine, were superficially impressive, they proved to be complex to maintain and highly unreliable.

Supermarine-Nighthawk-2

Back to the Drawing Board: The Supermarine Nighthawk

One of the oddest inventions was the Supermarine Nighthawk, a massive twin-engine quadruplane night fighter designed to fly patrols of anything up to 18 hours at a time, with a fully-enclosed heated cockpit and even a small sleeping berth.

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