Project Babylon Supergun / PC-2
Early in the war with Iran, the Iraqi government engaged world- renowned artillery expert Gerald V. Bull, whose lifetime obsession was a the construction of a "Supergun," a huge howitzer able to fire satellites into space or launch artillery shells thousands of miles into enemy territory. While he did not accomplish that dream, Bull did manage to design some of the most effective artillery pieces in the world.
A Canadian-born astro-physicist, Bull had earlier research contracts with with the United States Army, the Canadian Department of Defense and McGill University. While working on the Canadian Velvet Glove missile project, he realized that scientific instruments could also be fired from a gun and survive if put in a proper casing. In 1962 Bull obtained US military support for the joint U.S./Canadian High Altitude Research Program [HARP].
Initially working from a facility on the island of Barbados, a small 5-inch gun was used to fire projectiles to an altitude of over 70 km, and a 7-inch guns fired projectiles to nearly 100 km. Subsequently, in Arizona a larger HARP gun was fabricated by welding together a pair of 16-inch battleship guns, forming a barrel some 30 meters long. The gun was used to fire light-weight sub-caliber discarding-sabot projectiles called Martletts. On 19 November 1966 the gun fired a 185-lb Martlet to an altitude of 180 km. The 16 inch HARP gun was intended to launch a small three stage rocket carrying a 10 kg payload into space. However, the Canadian and US governments terminated HARP funding in 1967.
I'm sure the Brady Bunch will shortly issue a press release explaining how easy it is for a terrorist to buy one of these with no background check at a U.S. gun show.
The 16 inch Harp gun
Saddam's first supergun