Jake's jeep motorjet based on Wright R-1820 engine

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mvdmitri

Airman
39
28
May 13, 2019
Technical proposal to build a fast aircraft with afterburning motorjet using Wright R-1820 engine.

Study of Jet-Propulsion System Comprising Blower, Burner, and Nozzle
https://digital.library.unt.edu/ark:/67531/metadc62460/m2/1/high_res_d/19930093531.pdf


NACA Investigation of a Jet-Propulsion System Applicable to Flight - year 1943

https://digital.library.unt.edu/ark:/67531/metadc64950/m2/1/high_res_d/20050241734.pdf

Specific fuel consumption with afterburning at 550mph@10,000ft was 1.46 lbs/lbs/hr - approximately the same as for turbojet Jumo-004B without afterburning.
Thrust horsepower at this conditions was 2,980 hp - 3 times the power of the Wright R-1820.
Fuel and oil weight was 3,095 lbs.
Airplane gross weight was 9,780 lbs.
Without after burning this airplane could travel 2,770 miles at 10,000 ft at 300 mph. Miximum climb rate at 10,000 ft with full afterburning was over 12,000 ft per min and 2,000 ft per min at 50,000 ft.
 
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I've had heard about the Jake's Jeep but never seen this document before, thanks!

After the war Russia fielded a limited number (~50) of hybrid propeller/ motorjet powered planes designed by Mikoyan-Gurevich. The Mig 13 ( Mikoyan/Gurevich MiG-13 (I-250) - fighter ) was a conventional monoplane with an inline engine that moved both a frontal propeller and, through a long shaft, an axial compressor situated behind the pilot. Compressed air was then injected into some burners of the can type and the resulting flame passed through a diverging-converging nozzle. The thrust obtained was modest (around 300 Kg) but enough to make the plane reach 800 Km/h.

This design originated in 1944 as a response to the appearance of the Me 262 on the eastern front.
 

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