Helicopter bucket

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A helicopter bucket is a specialised bucket suspended on a cable carried by a helicopter to deliver water for aerial firefighting. Each bucket has a release valve on the bottom which is controlled by the helicopter crew. When the helicopter is in position, the crew releases the water to extinguish or suppress the fire below. Each release of the water is referred to as a drop. 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. This allows the helicopter crew to operate the bucket in remote locations without the need to return to a permanent operating base, reducing the time between successive drops.

Video Helicopter bucket

Design

Buckets can be collapsible or rigid and vary in capacity from 72 to 2,600 U.S. gallons (60 to 2,165 imperial gallons; 273 to 9,842 liters). The size of each bucket is determined by the lifting capacity of the helicopter required to utilise each version. Some buckets can include fire retardant foam or the ability to pump water from the bucket into an internal tank. Smaller collapsible buckets can use water sources as shallow as 1 foot (30.5 cm). Worldwide, the term monsoon bucket is widely used and accepted as a generic term. In the United States, this type of bucket is officially referred to as a helibucket. The trademarked Bambi Bucket is also commonly used informally by firefighting crews to describe buckets developed by other manufacturers.

Maps Helicopter bucket

Variants

A-Flex Firefighting Monsoon Bucket

Collapsible bucket produced by A-Flex Technology.

Bambi Bucket

Collapsible bucket developed by Canadian Don Arney and produced by SEI Industries since 1983.

CLOUDBURST Fire Bucket

Collapsible bucket produced by IMSNZ Ltd.

FAST Bucket

Variable Drop, fire fighting bucket that allows the pilot to select drop patterns for bush fires to canopy fires. manufactured by Absolute Fire Solutions.

HELiFIRE Monsoon Bucket

Collapsible and free-standing monsoon buckets produced by Rural Fire Service in New Zealand.

Water Hog Bucket

Lightweight, collapsible, free-standing bucket developed and produced by Aerial Fire Control Pty Ltd since 2001.

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See also

• Helicopter rescue basket
• Helitack -- helicopter-delivered fire resources
• Cargo hook (helicopter)

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References

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External links

• Media related to Helicopter buckets at Wikimedia Commons

Source of article : Wikipedia