P-61 Black Widow Ramjet tests

The P-61 Black Widow was used to test a number of American ramjet powered missiles and engines. The Navy borrowed two P-61Cs (43-8336 and 43-8347) from the USAAF and used them for air-launches of the experimental Martin PTV-N-2U Gorgon IV ramjet-powered missile, A P-61B (42-39754) was used by NACA’s Lewis Flight Propulsion Laboratory in Cleveland, Ohio for tests of airfoil-type ramjets in 1947. The following link, shows some photos of Black Widow test aircrafts:

http://aviacaoemfloripa.blogspot.com.br/2011/02/p-61-black-widow-em-testes-especiais.html

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45-59300 was an F-15A Reporter (later RF-61C designation) photorecon cousing of the P-61. 59300 was used by NACA, the forerunner of NASA at Edwards AFB.