in the Book about battleships, battle lines, and heavy ships, and fleet 
actions is as useless as a left-handed corkscrew in prohibition days. 
Speed is the essence of the whole thing. When you are struggling 
with priorities keep this in mind and push the equipment for aircraft, 
carriers, submarines, cruisers, destroyers in that order. Bear in 
mind that the aircraft and light force picture to be of real value. 
The old concepts and unfortunately the tactics we have had the most 
training in are practically dead issues in this naval blitz. In the 
development of new equipment give us the things we need and want and 
we will bring home the bacon. Another thing, with all due respect 
to the British and their problems and ways of doing things, it is 
all right to find out what their problems are but let's solve them 
in the American way- it's better. Too much of our stuff is based 
upon how the British do it. Take fighter direction for example, 
their average interceptions with fighters is from 3 to 6 percent of 
those attempted - ours around 90 percent - yet our books on the 
subject would have us use their methods. There are many other 
things being done along the same lines, not only in methods but 
in equipment and arrangements. There are too many reports and
opinions from abroad.
 
A few comments on equipment. Our CXAM-1 is performing beautifully 
and gives us little trouble. We use it twenty-four hours a day 
every day we are at sea. The only thing that causes consternation 
is images caused by side lobes. When they installed the radars 
they set each one on a slightly different frequency to reduce mutual 
interference. The frequency therefore does not exactly conform to 
that of the array hence an enlarged side lobe. You can imagine 
what happens on the bridge in enemy waters when you report that 
you "think" it is only a false or sidelobe echo. We are rematching 
ours and hope to eliminate this difficulty. We have tracked single 
aircraft as far away as eighty six miles and groups of aircraft 
over a hundred miles. Our altitude curves consistently permit us to 
determine altitude of approaching planes within three hundred feet. 
I suggest that carriers be equipped with an SC in addition to 
the CXAM-1. Greater use is made of radar in carriers than in any 
other type of ship. We are lost when our one radar is out of com-
mission at any time. Our gunnery radars must be pushed - we need 
them badly. Repeator screens for radar plot and on the bridges 
would be a desirable improvement if they could be developed. Each 
ship should be furnished with frequency measuring equipment to make 
proper adjustments. There is a shortage of 852 tubes in this area - 
larger number of spares of this type should be aboard.
 
The YE is invaluable. It works fine but requires much maintenance. 
The array rotating part, brushes, and sliprings give continuous 
trouble due to moisture. I suggest an arrangement similar to that 
on the radars be developed to replace the present system. Other 
recommended improvements: Provide voice modulating equipment so that 
it can be used to communicate with planes. Also the modulation 
frequency should be variable between 3000 and 7000 kcs to correspond 
to the usually used aircraft frequencies and to preclude the