For Bell Model 47 Helicopters

This lightweight side tank assembly is electronically operated. Its flow control
allows in-flight boom pressure adjustments, and the outboard booms
can be rotated for desired nozzle position.

System Components

  • Tank Assembly: External side-mounted fiberglass aerodynamic side-tanks. Tank attaches with quick-release pins for fast and easy installation.
  • Pump: Electric motor driven, flow: 100 GPM at 30 PSI.
  • Boom Valve/Flow Control: Boom valve puts negative pressure on boom in OFF position, Flow Control allows in flight boom pressure adjustments.
  • Cyclic Control: Allows pilot control of pumps, boom valve, emergency dump and flow control.
  • Boom Assembly: Outboard booms can be rotated for desired nozzle position.
  • Toe Mount Booms: Optional


Net Weight 153 lbs.
System Capacity 145 gallons
Boom Span 32 feet
Swath 40-60 feet
Air Speed VNE 80 MPH
Power Requirements 24 VDC
Amperage Draw 105 amps
Nozzles 62 total