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A helicopter bucket or helibucket is a specialized bucket suspended on a cable carried by a helicopter to deliver water for aerial firefighting. The design of the buckets allows the helicopter to hover over a water source—such as a lake , river , pond , or tank —and lower the bucket into the water to refill it.
Emergency Flotation Systems (EFS) are emergency systems installed on larger commercial and military helicopters in order to prevent the airframe sinking in the event of a crash landing on water. The floats may be packed within spaces inside the airframe or as externally mounted packs on the helicopter skids. The floats are inflated using gas ...
Repairs were completed towards the end of October. On 30 October, as she raised steam to get underway and rejoin the fleet, the valve began to leak once more. The bonnet blew off the valve, flooding the boiler room with steam from two boilers. Ten of the eleven crewmen in the room were killed during or immediately after the incident, with the ...
Improved design and maintenance almost totally eliminated the first type, but the second type is always possible if the driver and fireman do not maintain the water level in the boiler. Boiler barrels could explode if the internal pressure became too high. To prevent this, safety valves were installed to release the pressure at a set level.
These water treatments often include compounds forming a sludge to entrap such particles; and boilers intended for such water treatment include a structure called a mud drum at the lowest part of the boiler. Bottom blowdown involves periodically opening valves in the mud drum to allow boiler pressure to force accumulated sludge out of the boiler.
The sightseeing helicopter that crashed into New York City's East River Sunday evening was pulled out of the water on Monday. Five passengers were killed in the crash although the pilot escaped ...
A Navy helicopter on a training mission in California crashed into the water near San Diego on Thursday, and all six people aboard were rescued and brought ashore, a Navy official said.
Etching of damage from a boiler explosion in Newark, New Jersey in 1867. This is a list of steam boiler explosions such as railway locomotive, marine transport (military and civilian), and stationary power: