h. Land Antiaircraft Weapons (over 20mm.) The additional
antiaircraft guns in 1942, will increase the total heavy antiaircraft
guns from 7,200 to 8,000; and the light from 14,100 to 15,000 by the
end of 1942.
i. Land Antiaircraft Ammunition (over 20mm.) The additional
antiaircraft ammunition in 1942 will be sufficient to keep pace with
the additional production of antiaircraft guns.
j. T.N.T. The increase of present production schedules of T.N.T.
in 1942 appears to rest upon two factors: first, increasing output of
existing plants; second, completion in the calendar year 1942 of the
plants recently financed. While the first is possible, the second is
complicated, not only because of the time required for construction,
but also because the producers of the highly specialized plant machinery
have orders for equally specialized machinery for naval construction.
An acute shortage is indicated throughout 1942.
5. This memorandum has been prepared in advance of the latest
information on merchant shipping. Shipping information contained in the
Consolidated Statement is now rather out of date. New information will be
attached as soon as it becomes available. However, a rough estimate of
the shipping requirements for the means of warfare which might leave the
United States during 1942, based on average dollar value, is probably a
maximum of 20,000,000 gross tons.
6. The information furnished above is based on the over-all
figures of the Anglo-American Consolidated Balance Sheet. It is probably
not exact in all respects. In many caes more specific or detailed require-
ments may operate to reduce the striking forces which have been indicated.
However, it serves to indicate the possibilities for 1942 on present
schedules, and to raise the question as to the kind of supplies which
should be manufactured with the potential still available in the United
States in 1942, in order to further the joint strategical plans for that
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