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  2. General Atomics MQ-9 Reaper - Wikipedia

    en.wikipedia.org/wiki/General_Atomics_MQ-9_Reaper

    The General Atomics "Predator B-001", a proof-of-concept aircraft, first flew on 2 February 2001. Abraham Karem is the designer of the Predator. [8] The B-001 was powered by an AlliedSignal Garrett TPE331-10T turboprop engine with 950 shaft horsepower (710 kW). It had an airframe that was based on the standard Predator airframe, except with an ...

  3. Emergency light - Wikipedia

    en.wikipedia.org/wiki/Emergency_light

    Some lights are halogen, and provide a light source and intensity similar to that of an automobile headlight. Early battery backup systems were huge, dwarfing the size of the lights for which they provided power. The systems normally used lead acid batteries to store a full 120 VDC charge.

  4. General Atomics MQ-1 Predator - Wikipedia

    en.wikipedia.org/wiki/General_Atomics_MQ-1_Predator

    However, the Predator's maximum speed is 1,800 mph (2,900 km/h) lower than the MiG-25's, and its service ceiling is nearly 60,000 ft (18,000 m) lower, making the "run" segment of any "bait and run" mission a difficult task. In this incident, the Predator did not run (or could not run fast enough), but instead fired one of its Stingers.

  5. General Atomics MQ-20 Avenger - Wikipedia

    en.wikipedia.org/wiki/General_Atomics_MQ-20_Avenger

    Unlike the previous MQ-1 Predator and MQ-9 Reaper (Predator B) drones, the Avenger is powered by a turbofan engine, and its design includes stealth features such as internal weapons storage and an S-shaped exhaust for reduced infrared and radar signatures. [3] Its first flight occurred on 4 April 2009. [4] [5]

  6. Backup battery - Wikipedia

    en.wikipedia.org/wiki/Backup_battery

    A valve-regulated lead-acid battery is a battery type that is popular in telecommunications network environments as a reliable backup power source. VRLA batteries are used in the outside plant at locations such as Controlled Environmental Vaults (CEVs), Electronic Equipment Enclosures (EEEs), and huts, and in uncontrolled structures such as ...

  7. Ceiling projector - Wikipedia

    en.wikipedia.org/wiki/Ceiling_projector

    The projector is normally set at 90°, although 71° 31' may be used, in relation to the terrain. The projector consists of a 430-watt incandescent bulb set in a weatherproof housing. Inside the housing are two mirrors; the first, above the bulb, reflects the light downwards to the second mirror, that then reflects the light upwards to the ...