Comments by "Doug JB" (@dougjb7848) on "Battleship Guns of WW2 - A series of tubes" video.

  1. Launchers for the Unrotated Projectile (UP), a British anti-aircraft and ground-bombardment rocket of the Second World War. A 7-inch version was developed for the Royal Navy by Alwyn Crow of the Projectile Development Establishment of the Ministry of Supply at Fort Halstead. It proved unreliable and ineffective and was withdrawn from use in 1941.
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  2. I was told there would be no math.
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