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  2. Chesapeake 1000 - Wikipedia

    en.wikipedia.org/wiki/Chesapeake_1000

    20 ft 1 in (6.1 m) Chesapeake 1000 (formerly Sun 800 ) is a heavy lift sheerleg crane ship , owned by Donjon Marine Co., capable of lifting 1,000 short tons (890 long tons; 910 t). [ 1 ] [ 2 ] It is one of the largest boomable stiff-leg-derrick barges on the eastern seaboard of the United States.

  3. National Lift Tower - Wikipedia

    en.wikipedia.org/wiki/National_Lift_Tower

    There are six lift shafts of varying heights and speeds, including a high-speed shaft with a travel of 100 metres (328 ft 1 in) and a theoretical maximum speed of 10 m/s (33 ft/s). The tower's renovation was officially completed in July 2010. [5]

  4. Northrop M2-F2 - Wikipedia

    en.wikipedia.org/wiki/Northrop_M2-F2

    Data from General characteristics Crew: 1 Length: 22 ft 2 in (6.76 m) Wingspan: 9 ft 8 in (2.95 m) Height: 9 ft 6 in (2.90 m) Wing area: 160 sq ft (15 m 2) Empty weight: 4,620 lb (2,096 kg) Gross weight: 6,000 lb (2,722 kg) Max takeoff weight: 7,485 lb (3,395 kg) Powerplant: 1 × Reaction Motors XLR-11 liquid-fuelled rocket motor, 8,000 lbf (36 kN) thrust with four combustion chamber/nozzle ...

  5. Shaft (mechanical engineering) - Wikipedia

    en.wikipedia.org/wiki/Shaft_(mechanical_engineering)

    25 mm to 60 mm with 5 mm steps; 60 mm to 110 mm with 10 mm steps; 110 mm to 140 mm with 15 mm steps; 140 mm to 500 mm with 20 mm steps; The standard lengths of the shafts are 5 m, 6 m and 7 m. Usually 1m to 5m is used.

  6. Rolls-Royce LiftSystem - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_LiftSystem

    The concept of a shaft-driven lift-fan dates back to the mid-1950s. [9] The lift fan was demonstrated by the Allison Engine Company in 1995–97. [10] The U.S. Department of Defense (DOD) awarded General Electric and Rolls-Royce a $2.1 billion contract to jointly develop the F136 engine as an alternative to the F135.

  7. Caldwell-class destroyer - Wikipedia

    en.wikipedia.org/wiki/Caldwell-class_destroyer

    11 ft 6 in (3.51 m) max ... 1 × 3 in (76 mm)/23 ... with her forward stacks and boilers removed to give her the capacity to lift 200 Marines and four 11 m (36 ft) ...

  8. Hoist (device) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(device)

    Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

  9. Scaffolding - Wikipedia

    en.wikipedia.org/wiki/Scaffolding

    The lift height, the spacing between ledgers, is 2 m, although the base lift can be up to 2.7 m. The diagram above also shows a kicker lift, which is just 150 mm or so above the ground. Transom spacing is determined by the thickness of the boards supported, 38 mm boards require a transom spacing of no more than 1.2 m while a 50 mm board can ...