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our types of pursuit planes. The design and development of a suitable air-cooled radial engine of 400 horsepower for pursuit planes and having a diameter of about forty-five to fifty inches should be hastened. This motor should not weigh over two pounds per horsepower and should be further developed with an auxiliary supercharger for high altitude work. 

Further development work should be carried on with the shock absorbing mount for the 300 Wright motor. 

The Rateau type supercharger should be tried on a new pursuit design. 

Single-seater armored pursuit planes should be of the monoplane semi-internally braced type. The controls should be designed in such fashion as to make them absolutely separate and independent in their connections with respect to either aileron. They should have independent circuits so as to allow the aviator to disengage either one or the other of the ailerons at will and still have an aileron under control in case of injury by gun fire. The same should be done with elevators. 

METAL CONSTRUCTION

It will be absolutely necessary for us to develop military airplane types in all-metal construction. Metal airplane

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