The Machine Gun

011 a two-wheeled mount with a trail somewhat like a field piece. It could he put into action to fire against attacking aircraft in a matter of minutes. A piece fixed at the top of the tripod arrangement allowed ihe weapon to be raised on its mount and pointed upwards in any direction.

After the first few years no major power paid any interest in the weapon other than to purchase one or two to test at its own proving grounds. In fact, so little interest was shown that it was with the greatest of difficulty that the weapon was kept in existence until the revival in aircraft cannon began in Europe in the late thirties. Then any automatic cannon capable of being mounted in a plane was worthy of consideration by the leading nations of the world.

The Danish firm increased the bore of the gun and it was given great impetus when at the Paris Exposition in 1936 a Kokker G-l airplane was displayed with a Madsen 23-mm gun installed in each wing. One hundred rounds of ammuni tion per gun were carried and fed to the weapon by means of a metallic disintegrating link belt. The ammunition represented the most modern armor-piercing, high-explosive and ball-with-tracer types.

This display not only aroused the interest of military authorities on the Continent but likewise of the United States. Our attaches were requested to forward to the Chief of Army Ordnance all available data on the weapon and also to ascertain the price of four guns, plus necessary accessories and 5,000 rounds of high-explo-sive ammunition.

The Dansk Industri Syndikat on 18 May 1937, contracted to furnish the weapons, with ammunition and accessories for the sum of $28,611. The 18th of August was set as the date of delivery, but it was not until 1 October that the inspection of the first cannon took place at Copenhagen.

Of the guns presented, only one met contract specifications. The cannon was accepted and

Madsen 23-mrn Automatic Aircraft Cannon (Flexible!

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