Abstract
Abstract This paper discusses the two kinds of jets which may be used for propelling bodies through the atmosphere: (a) Highly heated compressed atmospheric air admixed with products of combustion formed by burning a fuel in the air; the thermal energy of the fuel being employed to raise the air temperature. This type is known as a “thermal-jet engine.” (b) A jet formed by generating large quantities of gases by chemical reaction. The equipment in which such a jet is produced is known as a “rocket motor.” Operating principles and estimated performance characteristics of thermal-jet engines are treated, and certain unrestricted information on the use of rocket motors or “Jato” units for assisted take-off of aircraft is presented.
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