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A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.
On Sept. 11, 1974, Eastern Air Lines Flight 212 crashed in Charlotte, killing 72 passengers. Ten people survived. It remains the deadliest plane crash in Charlotte history.
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Family of observation and attack aircraft; composes of the A-3, the main attack version, XA-4, and A-5 and A-6 with more powerful engines. Fokker XA-7: Fokker-America: 1931 1 Curtiss A-8: Curtiss Aeroplane and Motor Company 1931 1932 13 Lockheed Y1A-9: Detroit Lockheed: A version of the Lockheed YP-24 that specialized in ground attack. 1931 1
Investigators head into the debris field at the site of a commercial plane crash near Shanksville, Pennsylvania, September 11, 2001. The crash is one of four planes that were hijacked as part of a ...
As cranes became more common in docks, and as ships became bigger, they also became more specialised. In 1927, Stothert & Pitt produced the first bulk-handling crane . [ 3 ] Rather than a simple hook that could handle a range of slung loads, this was a crane designed around the use of an integral grab.
The Hammerhead crane at the PSNS & IMF in Bremerton in April. The shipyard is planning for a major renovation and modernization known as SIOP, which will span years, and recently put out a request ...
In 1909, the airship was imagined as an "aerial battleship" by several observers who wrote about the possibility of using an extended ramming pole to attack other airships, and to swing an anchor or other mass on a cable below the airship as a blunt force attack against ground-based targets such as buildings and smokestacks, and against ship masts.