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The ram-air inlet is a small scoop, generally located on the wing-to-body fairing. Nearly all jetliners use a modulating door on the ram-air inlet to control the amount of cooling airflow through the primary and secondary ram air heat exchangers. To increase ram-air recovery, nearly all jetliners use modulating vanes on the ram-air exhaust.
EW-10000 to EW-99999 (ex-Soviet Union registrations)EW-100AA to EW-999ZZ (aircraft in general, except those listed below) EW-200PA to EW-299PA (reserved for Boeing 737 aircraft)
Data from Jane's All the World's Aircraft 2003-04 General characteristics Crew: 2 Length: 8.59 m (28 ft 2 in) Wingspan: 10.04 m (32 ft 11 in) Height: 2.96 m (9 ft 9 in) Wing area: 16.5 m 2 (178 sq ft) Airfoil: root: NACA 23016.5 ; tip: NACA 23012 Max takeoff weight: 1,585 kg (3,494 lb) Powerplant: 1 × Rolls-Royce 250-B17F turboprop engine, 336 kW (451 hp) Propellers: 3-bladed constant-speed ...
Data from FlightGlobal, Air & Space Forces Magazine, Boeing and Key.Aero General characteristics Crew: 2: pilot and instructor/passenger Length: 46 ft 11 in (14.30 m) Wingspan: 30 ft 7 in (9.32 m) Height: 13 ft 6 in (4.11 m) Empty weight: 18,000 lb (8,165 kg) Gross weight: 22,000 [63] lb (9,979 kg) Fuel capacity: 4,500 pounds (2,000 kg) Powerplant: 1 × General Electric F404 -GE-103 ...
Four wires come to the centrally-located thermostat from the main heating/cooling unit (usually located in a closet, basement, or occasionally in the attic): One wire, usually red, supplies 24 volts AC power to the thermostat, while the other three supply control signals from the thermostat, usually white for heat, yellow for cooling, and green ...
The first family has a 94-inch (2.4 m) fan diameter and is designed to power the Boeing 767, Boeing 747, MD-11, and the Airbus A300. The second family is the 100 inch (2.5 m) fan engine developed specifically for the Airbus A330 twinjet, and the third family has a diameter of 112-inch (2.8 m) designed to power Boeing 777.
This regulation is now carried out by an internal thermostat. Conveniently, both the sensing element of the thermostat and its control valve may be placed at the same location, allowing the use of a simple self-contained non-powered thermostat as the primary device for the precise control of engine temperature. [2]
Fans attached to components are usually used in combination with a heat sink to increase the area of heated surface in contact with the air, thereby improving the efficiency of cooling. Fan control is not always an automatic process. A computer's BIOS can control the speed of the built-in fan system for the computer. A user can even supplement ...