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Report of test of 300 H.P. Hispano-Suiza model "H" engine, fitted with pistons which give a 6.5:1 compression ratio (power plant section report)


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dc.creatorUnited States. Army. Air Service. Engineering Division.en_US
dc.date.accessioned2018-08-13T19:34:09Z
dc.date.available2018-08-13T19:34:09Z
dc.date.created1922-03-15en_US
dc.identifier.urihttp://hdl.handle.net/11200/49240
dc.descriptionThe object of this test was to determine the performance of the 300-horsepower Hispano-Suiza Model "H" engine, with a compression ratio of 6.5:1 operating on aviation gasoline blended with General Motors antiknock compound No. 1. The output with the 6.5:1 compression ratio pistons using "doped" fuel was 8.6 per cent greater, and the specific fuel consumption 7.9 per cent less than obtained with the same carburetor settings on the standard engine equipped with standard 5.3:1 compression ratio pistons and operating on unblended aviation gasoline at 1,800 revolutions per minute. The high compression pistons are lighter than the standard pistons and should reduce engine vibration, but this could not be verified on the rigid dynamometer mounting.en_US
dc.formatPDfen_US
dc.publisherWashington, D.C. : Chief of Air Serviceen_US
dc.relation.ispartofseriesAir Service information circular (Aviation) ; v. 4, no. 333en_US
dc.relation.ispartofseriesMcCook Field report ; Serial no. 1710en_US
dc.subjectAirplanes--Design and constructionen_US
dc.subjectAirplanes--Motors--Testingen_US
dc.subjectAirplanes--Motors--Partsen_US
dc.subjectAirplanes--Fuel consumptionen_US
dc.subjectAirplanes--Parts--Testingen_US
dc.subjectHorsepoweren_US
dc.subjectAeronautics--Systems engineeringen_US
dc.titleReport of test of 300 H.P. Hispano-Suiza model "H" engine, fitted with pistons which give a 6.5:1 compression ratio (power plant section report)en_US
dc.typeTexten_US
dc.ActivityGasoline--Anti-knock and anti-knock mixturesen_US
dc.ActivityMotor fuels--Anti-knock and anti-knock mixturesen_US
dc.ActivityMotor fuels--Additivesen_US

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