Gimbal Swing Frame Technology
Unlike rigid swing frames, Onboard's gimbal frame design evenly distributes weight between the four cables to ensure balanced load sharing throughout the aircraft.
With a rigid frame (such as supplied by original equipment manufacturers), one or more of the cables goes slack when swinging side to side with no load. However, when a load is on the hook, the cables can't slacken and the geometry is accommodated by flexure of the swing frame and the airframe. The more rigid the swing frame is, the more the load weight is transferred to the airframe.
Our swing frames include a gimbal connecting piece near where the hook attaches and the spherical rods end on the sides. As the swing moves from side to side under the helicopter, the four cables all describe their own arcs. This can be observed by moving the Onboard Systems gimbaled swing frame side to side under the helicopter and watching the gimbaled joint and the parallelism of the frame tubes. The frame flexes to accommodate the paths of the cable ends, reducing the stresses to both the airframe and the swing frame.
HEC Kit for the MD500
Our Human External Cargo (HEC) hook kit for the MD500 aircraft series provides an STC-certified solution for a variety of CFR Part 133 external load missions.
TALON 1K Carousel Hook
The TALON 1K Carousel Hook was designed for optimal performance when operating in a multi-hook carousel system.
Our TALON Cargo Hook Overhaul Kits will greatly reduce the hassle of overhauling your cargo hook while saving you time and money!