Power Data Grapple Fixture
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A Power Data Grapple Fixture (PDGF) is male connection fixture used on the International Space Station (ISS). It is used to connect the Canadarm2 robotic arm.
The PDGFs allow the Canadarm2 to attach, pick up, manipulate and detach from various locations around the ISS. PDGFs are flat in appearance with a central probe and 3 curved 'wings' that appear to swivel in order to lock the arm in place.
