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Active clearance control (ACC) is a method used in large aircraft gas turbines to improve fuel efficiency during cruise. This is achieved by setting the turbine tip clearance at more than one operating point and contrasts with passive clearance control which sets it for only one condition and is explained below.
Type No. Built Service period NATO name Remarks Alekseyev I-21/211/215: 3 – n/a: Bell P-39 Airacobra: 4,719: 1943–1949 – Lend-Lease from the United States
In 1972, the AI-25 was selected for the Polish PZL M-15 Belphegor, the world's only jet-powered biplane. Development of the AI-25 continued and the uprated AI-25TL was designed for use by the Czechoslovak Aero L-39 Albatros military trainer with the first flight occurring in 1968. The L-39, would go on to become one of the most popular, and ...
Aero Vodochody (commonly referred to as Aero) is a Czech aircraft company. Its main production facilities are located at Vodochody Airport in the Prague-East District, on the municipal territories of Vodochody and Odolena Voda. During the Cold War era, the firm was well known for its range of jet-powered trainer aircraft, the L-29 Delfin and L ...
The Aero L-39 Skyfox, [1] also known as Aero L-39NG ("Next Generation"), is a turbofan-powered military trainer and light combat aircraft developed and produced by the Czech aircraft manufacturer Aero Vodochody. It is a successor of the Cold War era Aero L-39 Albatros. During July 2014, Aero Vodochody announced the launch of the L-39NG programme.
The Aero 2 ULTRA Series offers two distinct models to cater to specific cleaning requirements: PCS ULTRA: The PCS ULTRA is ideal for situations requiring both precision and versatility. The PCS ULTRA retains the power of Cold Jet’s patented Particle Control System ® (PCS). This system allows operators to precisely control the size of dry ice ...
An interesting feature of all three German jet engine designs that saw production of any kind before May 1945: the German BMW 003, Junkers Jumo 004 and Heinkel HeS 011 axial-flow turbojet engine designs was the starter system, which consisted of a Riedel 10 hp (7.5 kW) flat twin two-stroke air-cooled engine hidden in the intake, and essentially ...
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