New Onboard Weighing System for the Robinson R44
Raven II Features Pin Load Cell Technology
Robinson R44 Cargo Hook Kit with Pin Load Cell
Side view of one of the Robinson R44 Raven II cargo hook kits with the new Onboard Weighing System in place. The pin load cell replaces the main attach bolt (see photo below) to allow for improved ground clearance and easy installation.
Pin Load Cell Closeup
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Onboard Systems announced that its latest pin load cell has been STC certified by the FAA and Transport Canada. The pin load cell is part of a new Onboard Weighing System designed for the Robinson R44 Raven II aircraft. Onboard has also submitted this system to EASA for certification in Europe.

Onboard Weighing Systems provide pilots with the exact weight of the load on the cargo hook via a display monitor mounted in the cockpit, allowing them to maximize load efficiency while reducing airframe stress. Pin load cells are designed to mount on one side of the hook by replacing the main attach bolt, rather than attaching as a separate link above the hook. This allows for improved ground clearance, easier cable routing and lower weight.

“In 2008, Onboard Systems reviewed and re-engineered our cargo hook kits for the Robinson R44 and Raven II as part of our continuous product improvement process,” said Karsten Lemmon, Vice President of Sales & Marketing for Onboard Systems. “The new pin load cell is the final component of the revamped Robinson Raven II kits and offers improved ground clearance and simplified installation for operators.”

For more information on this new product, please visit our website or contact us for more details.