Aerospace, Defence & Marine... 

Aerial Fire Fighting

Application

Evergreen Supertanker firefighting jet

Customer

Evergreen Supertanker

The Challenge

Speed and force were needed for the Evergreen Supertanker or “water bomber,” - a modified Boeing 747 cargo jet - designed to hold, transport and dump 24,000 gallons of fluid on large ground fires.

The cargo hold is fitted with 4 fluid tanks, which dump from the bottom of the plane via four 16” diameter butterfly valve openings. The supertanker does the work of 7 standard fire-fighting planes.

The Solution

The Exlar GSX40 is deployed in two areas of the application. For safety and for dump control, each tank must maintain absolute pressure control (sloshing 24,000 gallons of water would be a “catastrophic event”). The GSX40 controls the pressure regulation valve between the air pressure tanks and the fluid holding tanks. Additionally, another GSX40 regulates the dump valve, which controls the fluid dump.

Results
  • Exceptionally fast responses to command signal changes
  • Roller screws offer up to 15 times longer life than ball screw actuators
  • Less energy consumption with electric actuation
  • Accurate and repeatable positioning
  • Wide variety of mounting styles
  • High cycle rates
  • Multiple stroke lengths
  • Available in standard sizes offering peak forces from 100 to 40,000 pounds
  • Operation with nearly any servo amplifier
  • Higher stiffness due to integrated design
 

Unrivalled Product

 

Unrivalled Product Range

Olsen has a unique breadth and depth of the most high performance, efficient and reliable actuators on the market. We also supply an unrivalled array of supporting equipment to complement your applications, including Servo Motors & Drives, gear boxes, cables and countless options to customise to your specifications.

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