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  2. Special Air Mission - Wikipedia

    en.wikipedia.org/wiki/Special_Air_Mission

    SAM 26000 was augmented in December 1972 by another VC-137, Special Air Mission 27000, with SAM 26000 retained as an alternate Air Force One aircraft until it was finally retired in 1998. Richard Nixon was the first president to use SAM 27000, and the newer VC-137 served every president until it was replaced by the two VC-25 aircraft (SAM 28000 ...

  3. VC-137C SAM 27000 - Wikipedia

    en.wikipedia.org/wiki/VC-137C_SAM_27000

    SAM 27000 was the second of two Boeing VC-137C United States Air Force aircraft that were specifically configured and maintained for the use of the president of the United States. It used the call sign Air Force One when the president was on board, and at other times it used the call sign SAM 27000 (spoken as 'SAM two-seven-thousand'), with SAM ...

  4. Battlefield illumination - Wikipedia

    en.wikipedia.org/wiki/Battlefield_illumination

    A single BIAS system was developed by LTV electro-Systems and installed on a Fairchild C-123B for the Special Air Warfare Center at Eglin Air Force Base in Florida by April 1966. Initially designated Airborne General Illumination Light (AGIL), the system weighed 7,500 lb (3,400 kg) and had a lamp assembly with 28 Xenon lamps, heat exchanger and ...

  5. Aviation obstruction lighting - Wikipedia

    en.wikipedia.org/wiki/Aviation_obstruction_lighting

    Aircraft warning lights at the Mannheim telecommunications tower, in the background the bright torchlight of a steam cracker, in the distance warning lights from wind turbines Structure using a white strobe Structure using a Red/White Strobe Closeup of an aircraft warning light on top of a highrise in Changzhou, China Structure using high-intensity white lights and a medium-intensity white strobe

  6. VC-137C SAM 26000 - Wikipedia

    en.wikipedia.org/wiki/VC-137C_SAM_26000

    SAM 26000 was the first of two Boeing VC-137C United States Air Force aircraft specifically configured and maintained for use by the President of the United States.It used the callsign Air Force One when the president was on board, otherwise SAM 26000 (spoken as 'SAM two-six-thousand'), with SAM indicating Special Air Mission.

  7. Multiservice tactical brevity code - Wikipedia

    en.wikipedia.org/wiki/Multiservice_tactical...

    Between 25,000 and 40,000 ft (7,600 and 12,200 m) above mean sea level (MSL). Hit(s) Air-to-air (A/A) Momentary radar returns search. (Indicates approximate altitude information from fighter.) Air-to-ground (A/G) Weapons impact within lethal distance. Hold down Directive to key transmitter for direction-finding (DF) steer. Holding hands

  8. Searchlight - Wikipedia

    en.wikipedia.org/wiki/Searchlight

    ATS officers-in-training crew a 90 cm searchlight in Western Command, 1944. A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direction.

  9. Timeline of lighting technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_lighting...

    Stanley lit 23 businesses along a 4000 feet length of main street stepping a 500 AC volt current at the street down to 100 volts to power incandescent lamps at each location. [7] 1893 GE introduces first commercial fully enclosed carbon arc lamp. Sealed in glass globes, it lasts 100h and therefore 10 times longer than hitherto carbon arc lamps ...

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