Report presenting climb and high-speed tests of a Hamilton Standard No. 6507A-2 three-blade propeller, which have been made to determine the effect of blade loading on propeller efficiency. The normal and military power climb efficiencies were found to be about equal at altitudes below 16,000 feet.

The following report describes a current beam modulation designed to replace the standard regulator and to achieve an ion beam free from amplitude modulation.

Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1944 activities, organizational leadership, and other information about scouting programs.

It is recognized that the S-50 plant operations are far from standardized and therefore any manual will require continual revision to keep it up to date. Even during the period of writing this first edition, many changes occurred and were incorporated in the manual. Such revisions could delay indefinitely the issuance of the manual and it was felt that in its present form it could be useful in the training of new plant personnel. The specific purpose of the process employed by the Ferclave Corporation in the plant at Oak Ridge, Tennessee, is one of secret information and cannot be released here. It can be stated, however, that the plant operation involves the processing of a chemical substance. This substance is not identified in the plant or in the process but is referred to only as 'material'. Its code designation is C-616. The process in general involves the separation of the raw material into constituents with more desirable properties. It is not necessary to know the name of the material nor the exact nature of the process in order to carry out the operations so this information will not be given in this Manual. The problem involved is to transport …