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The aircraft boasts of being a great improvement from conventional transport helicopters regarding its maximum speed, radius of action and freight-carrying capacity.

Possessing a great radius of action, she combined the roles of mine-layer and submerged torpedo-craft.

This vessel was not only larger and speedier than its appointed antagonist, but it possessed a radius of action and a seaworthiness which enabled it to accompany the battle fleet.

It carries ten-inch gelatine blasting shells, fired from a pneumatic gun twenty feet long, whose radius of action is two hundred yards under water and one thousand yards above.

They had seen the ship through the waters within the radius of action of the German submarines.