J57 EPs
J57 may refer to: * J57 (rapper) (born 1983), American rapper * , a minesweeper of the Royal Navy * Pratt & Whitney J57, a turbojet engine * Triaugmented hexagonal prism In geometry, the triaugmented hexagonal prism is one of the Johnson solids (). As the name suggests, it can be constructed by triply augmenting a hexagonal prism by attaching square pyramids () to three of its nonadjacent equatorial faces. ...

J57 (rapper)
J57 is an American rapper, singer, songwriter, record producer, record label owner, and music video director that infuses hip hop with indie rock, pop, folk & Americana music. He is a member of the Brown Bag AllStars, a group of emcees he helped create while working at Fat Beats in 2004, and Jamo Gang, a hip-hop group along with Ras Kass and El Gant. J57 cites DJ Eclipse and his mentor DJ Premier, as his musical influences. He owns a record label called FiveSe7en Collective which is the home of a lot of new, promising talent in different genres of music. 2003–2007: Early beginnings and Brown Bag AllStars Born and raised in Long Island, New York, J57 started his music career freestyling, battle rapping and beatboxing in high school under the stage name JLOG1C with a group of friends. In 2003, he started producing and went on to record his first recording with his crew. In 2004, JLOG1C started working at Fat Beats, a popular record store in New York where he met the Brown B ...
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Pratt & Whitney J57
The Pratt & Whitney J57 (company designation: JT3C) is an axial-flow turbojet engine developed by Pratt & Whitney in the early 1950s. The J57 (first run January 1950) was the first 10,000 lbf (45 kN) thrust class engine in the United States. The J57/JT3C was developed into the J52 turbojet, the J75/JT4A turbojet, the JT3D/TF33 turbofan, and the XT57 turboprop (of which only one was built). The J57 and JT3C saw extensive use on fighter jets, jetliners, and bombers for many decades. Design and development The J57 was a development of the Pratt & Whitney XT45 (PT4) turboprop engine that was originally intended for the Boeing XB-52. As the B-52 power requirements grew, the design evolved into a turbojet, the JT3. Pratt & Whitney designed the J57 to have a relatively high overall pressure ratio to help improve both Thrust-specific fuel consumption and specific thrust, but it was known that throttling a single high pressure ratio compressor would cause stability problems. ...
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