exhaust-jet noise
21Variable Cycle Engine — In a Variable Cycle Engine (VCE) the engine cycle is deliberately modified from that which would occur under normal circumstances.The next generation of Supersonic transport (SST) may require some form of VCE. SST engines require a high Specific… …
22Rolls-Royce Trent — are a family of high bypass turbofan engines manufactured by Rolls Royce. All are developments of the RB211 with thrust ratings of between 53,000 and 95,000 lbf (236 to 423 kN). Versions of the Trent are in service on the Airbus A330, A340, A380… …
23Mixer (engine) — Turbofan engines often feature an exhaust mixer, where the bypass (cold) air is mixed with the core (hot) exhaust gases, before exhausting to atmospheric pressure through a common (mixed flow) propelling nozzle. Benefits The mixer reduces the… …
24Silent Aircraft Initiative — The Silent Aircraft Initiative is a study being undertaken by the Cambridge MIT Institute to discover ways to reduce aircraft noise dramatically, to the point where it would be virtually unnoticeable to people outside the airport perimeter.… …
25Rolls-Royce BR700 — The BR700 family of engines was developed by BMW and Rolls Royce plc through the joint venture company BMW Rolls Royce to power regional and corporate jets. Rolls Royce took full control of the company in 2000 which is now known as Rolls Royce… …
26Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …
27Concorde — For other uses, see Concorde (disambiguation). Concorde Role Supersonic airliner …
28Hush kit — A hush kit is a device for reducing noise from an engine; most commonly the term refers to devices which reduce noise emissions from low bypass turbofan engines, as fitted to older commercial aircraft (see below for examples).Jet aircraft… …
29Computer cooling — An OEM AMD heatsink mounted onto a motherboard. Computer cooling is required to remove the waste heat produced by computer components, to keep components within their safe operating temperature limits. Various cooling methods help to improve… …
30Pop pop boat — A pop pop boat is a toy with a very simple heat engine without moving parts, powered by a candle or oil burner. The name comes from the noise the boats make. Other names are putt putt boat, crazy boat, flash steamer, hot air boat, pulsating water …
