Current Problems in Airline Engines

350083

01/01/1935

Event
Pre-1964 SAE Technical Papers
Authors Abstract
Content
AN outline of some current problems in aircraft engines with particular reference to the types used for main-line scheduled-transport operations is presented, it being limited so far as possible to a consideration of the conventional four-stroke gasoline-engine.
Types of airline service are considered and, as regards engine sizes, it is remarked that airline service demands engines in a range of sizes from the maximum available to about 250 hp. as a minimum.
Statistics of the present performance of airline engines are given, and it is stated that the horsepower output required to meet the contemplated schedule with the most adverse wind normally expected on the route is a nearly correct measure of the true effective size of the airline engine; further, that its durability and performance should, in general, be judged on that basis.
The importance of fuel consumption is stressed. As to preliminary tests of the hypothetical engine discussed, a dynamometer calibration of the sea-level performance-characteristics-which should be extended to cover altitude operation also if the necessary equipment is available-should be made.
Data on cylinder cooling are presented, and lubrication and other problems-such as compression ratios, fuels, supercharging and mixture-strength control at altitude-are treated.
Meta TagsDetails
DOI
https://doi.org/10.4271/350083
Pages
9
Citation
Gagg, R., "Current Problems in Airline Engines," SAE Technical Paper 350083, 1935, https://doi.org/10.4271/350083.
Additional Details
Publisher
Published
Jan 1, 1935
Product Code
350083
Content Type
Technical Paper
Language
English