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Surely there must be a better picture of a J75 than some hulk sitting in a Havana parking lot. Although probably meant as an anti-American slam, the U-2 in question was downed during the Cuban Missile Crisis when secretive Soviet attempts to turn the country into a missile base were discovered and monitored by the U-2 and other American recon aircraft. So, you're looking at a piece of American technology that averted World War III and prevented Cuba itself from being turned into a smoking hole.Jmdeur (talk) 18:47, 31 July 2009 (UTC)
- You might be reading a bit too much into that picture, but I agree that a better picture could be found. Incidentally, any truth to the old yarn that you could throw a brick in the front and see a puff of sand come out the back? Of course not, but it was a tough engine.--172.190.11.73 (talk) 00:13, 3 November 2011 (UTC)
J-75 not used as powerplants for A-12, YF-12A, SR-71 and M-12
editAFAIK all these jets used (in the end) the P&W J58. The J58 burns a special fuel JP-7, which would possibly not ignite in a P&W J-75 and/or maintain a stable combustion. --de:TK-lion (talk) 13:26, 8 August 2013 (UTC)
- J75 used for early A-12 flights.--Petebutt (talk) 23:53, 1 January 2018 (UTC)
- From the A-12 article:
The first five A-12s, in 1962, were initially flown with Pratt & Whitney J75 engines capable of 17,000 lbf (76 kN) thrust each, enabling the J75-equipped A-12s to obtain speeds of approximately Mach 2.0. The two-seater Titanium Goose retained J75s throughout it's life.
5,100lbs
editHow is a J75 actually lighter than a J57 while also being much larger and more powerful, especially if it's just a scaled up J57? I am guessing that the J57 weight includes an afterburner section while the J75 described here is a civilian model that has none, but it would be nice if the articles were more consistent and you could compare the engines with each other. Not having any idea how much an afterburner weighs I have I no idea how much heavier a J75 is generally. Idumea47b (talk) 22:41, 4 June 2024 (UTC)