The YF-1 was a Chinese liquid rocket engine burning N2O4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module...

The Northrop/McDonnell Douglas YF-23 is an American single-seat, twin-engine, supersonic stealth fighter aircraft technology demonstrator designed for...

The Northrop YF-17 (nicknamed "Cobra") was a prototype lightweight fighter aircraft designed by Northrop aviation for the United States Air Force's Lightweight...

The Lockheed/Boeing/General Dynamics YF-22 is an American single-seat, twin-engine fighter aircraft technology demonstrator designed for the United States...

The Lockheed YF-12 was an American Mach 3+ capable, high-altitude interceptor prototype, developed and manufactured by American aerospace company Lockheed...

Fairchild 71, later redesignated XF-1 when modified for photo survey. XF-1 XC-8 redesignated for photo-survey YF-1 Eight Fairchild 71 aircraft for evaluation...

The YF-100 is a Chinese liquid rocket engine burning LOX and kerosene in an oxidizer-rich staged combustion cycle. Development of the engine began in the...

The YF-215 is a liquid cryogenic rocket engine burning liquid methane and liquid oxygen in a full-flow staged combustion cycle. The engine is currently...

The North American YF-93 was an American fighter development of the F-86 Sabre that emerged as a radically different variant that received its own designation...

module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module...

The YF-209 is a liquid cryogenic rocket engine burning liquid methane and liquid oxygen in a gas-generator cycle. The engine is designed for reusability...

410th was inactivated in a ceremony on 1 August 2008. Five aircraft were placed in museums, including the first four YF-117As and some remains of the F-117...

− 1 {\displaystyle f^{-1}} are: ∫ f − 1 ( y ) d y = y f − 1 ( y ) − F ∘ f − 1 ( y ) + C , {\displaystyle \int f^{-1}(y)\,dy=yf^{-1}(y)-F\circ f^{-1}(y)+C...

Lockheed and Northrop were selected in 1986 to respectively develop the YF-22 and the YF-23 technology demonstrator aircraft for the program's demonstration...

PMID 19164583. Wang XH, Li L, Hölscher C, Pan YF, Chen XR, Qi JS (November 2010). "Val8-glucagon-like peptide-1 protects against Aβ1-40-induced impairment...

the circularization burn from there. Operational variants are designated YZ-1 for Long March 3B and 3C, YZ-1A for Long March 7, YZ-1S for Long March 2C...

awarded contracts worth $37.9 million and $39.8 million to produce the YF-16 and YF-17, respectively, with the first flights of both prototypes planned for...

The YF-90 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in a staged combustion cycle. It is China's first hydrogen-oxygen...

The YF-40 is a Chinese liquid rocket engine burning N2O4 and UDMH in a gas generator cycle. It has dual gimbaling combustion chambers. Originally it was...

ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization...

engines for both the Lockheed/Boeing/General Dynamics YF-22 and the Northrop/McDonnell Douglas YF-23 ATF technology and flight demonstrators. The ATF's...

Phoenix YF-112 YF-112C/D – Sukhoi (acquired former East German Su-22M4) YF-113 YF-113A – Mikoyan-Gurevich (captured MiG-17F under Have Drill) YF-113B –...

7 YF-100K engines (for a total of 21 operational engines at liftoff). The second-stage core has a diameter of 5.0 meters and is equipped with 2 YF-100M...

The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy bomber used by the United States Air Force. It has been nicknamed the "Bone" (from...

the two competing technology demonstrator aircraft, the Lockheed YF-22 and Northrop YF-23. Pratt & Whitney's competing F119 was selected over the F120...

application are: YF-24: A module comprising an YF-22 and a single YF-23 verniers. YF-24B: A module comprising an YF-22B and a single YF-23B verniers. YF-24E: A...

The designation "F-107A" was the only one assigned to the aircraft, though "YF-107A" is often used in publications. The aircraft is also informally called...

avionics integration, and training systems. The F-22 descended from the Lockheed YF-22 and first flew in 1997, and was variously designated F-22 and F/A-22 before...

The YF-77 is China's first cryogenic rocket engine developed for booster applications. It burns liquid hydrogen fuel and liquid oxygen oxidizer using a...

The North American F-86D/K/L Sabre (initially known as the YF-95 and widely known informally as the "Sabre Dog",) was an American transonic jet interceptor...