Robinson Rib Clamp Base: This base clamp fits the rib channel on any Robinson R22, R44, R66 Helicopter. This clamp can be easily tightened by hand making it a FAA temporary mounting device. The thumb screw also has a hex drive allowing you to use the included hex wrench to tighten. This Clamp Base has a 1 420" socket allowing you to attach most mounts including RAM ball mounts.

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FAA Attachment Rating: N A