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It is probable that the limited number of antiaircraft guns available may force the fixed defenses to forego antiaircraft gun defense for their own protection, relying instead on bombproofs and concealment, and using all available antiaircraft guns for the close-in protection of extremely important munitions factories and navy yards.

It is declared feasible to tow great drydocks across the ocean. It may be found practicable to tow launching platforms for aircraft to an enemy's shore, thus increasing the possibilities of air raids against coast objectives.

Brevity ceases to be a virtue when it understates the truth!

At the risk of raising controversial issues it may be well to discuss at some length the use of aircraft in harbor defense. The military use of aircraft not only introduces a new enemy but supplies a new member of the defense team. How efficient thin youngest member will be depends upon the guidance afforded by the experienced team members - the Coast Artillery and the naval local defense forces.

Besides furnishing three-dimension observation of considerable radius, and adjustment of the fire of fixed guns, aircraft can combat hostile aircraft in the air; by bombing they can add to the fire power of fixed defenses and naval craft and can extend the radius of effective fire power against hostile naval targets. They can oppose hostile aircraft in the altitudes beyond the reach of effective antiaircraft gun fire; they can locate and attack such an enemy when it is hidden from anti-aircraft

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