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GA-ASI extended the wingspan of the Avenger ER by 3.2 m (10 ft) to 23.2 m (76 ft), and enlarged its fuel capacity by 1,000 kg (2,200 lb) to 4,600 kg (10,100 lb) compared to previous specifications. The aircraft carries up to 1,360 kg (3,000 lb) in its internal payload bay, 227 kg (500 lb) less than previously described. [35]
Predator operators at Balad Camp Anaconda, Iraq, August 2007. Each Predator air vehicle can be disassembled into six modules and loaded into a container. This enables all system components and support equipment to be rapidly deployed worldwide. The largest component is the ground control station (GCS) which is designed to roll into a C-130 ...
The company refined the design, taking it in two separate directions. The first was a jet-powered version; "Predator B-002" was fitted with a Williams FJ44-2A turbofan engine with 10.2 kilonewtons (2,300 lbf) thrust. It had payload capacity of 475 pounds (215 kg), a ceiling of 60,000 feet (18 km) and endurance of 12 hours.
Aircraft radio modulator unit from the Second World War, showing a dynamotor (the black cylinder) which converts the aircraft's 24–28 V DC to 500 V DC for the transmitter. Dübendorf Museum of Military Aviation. A motor–generator (an MG set) is a device for converting electrical power to another form.
The rotor of a turbo generator is a non-salient pole type usually with two poles. [5] The normal speed of a turbo generator is 1500 or 3000 rpm with four or two poles at 50 Hz (1800 or 3600 rpm with four or two poles at 60 Hz). The rotating parts of a turbo generator are subjected to high mechanical stresses because of the high operation speed.
The bearings have to be leak-tight. A hermetic seal, usually a liquid seal, is employed; a turbine oil at pressure higher than the hydrogen inside is typically used. A metal, e.g. brass, ring is pressed by springs onto the generator shaft, the oil is forced under pressure between the ring and the shaft; part of the oil flows into the hydrogen side of the generator, another part to the air side.
Due to high cost of a generator, a set of sensors and limiters will trigger the alarm when the generator approaches the capability-set boundary and, if no action is taken by the operator, will disconnect the generator from the grid. [3] D-curve expands with cooling. The D-curve for a particular generator can be expanded by improved cooling.
A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft-mounted permanent magnet mechanism, and current is induced into the stationary armature.