Tender Ships and A-Frames 

The U.S. Navy provided loving care for its PT Boats and Catalina PBYA "Flying boats" (Black Cats) with tender ships (AGP) which anchored near the bases and supplied many of the material needs of their crews.  Their most important job was to keep their charges in good repair.

The Coos Bay was among the tenders serving the Black Cats in the Green Lagoon.

The A-frames mounted on tender ships hoisted the PT boat out of the water for maintenance and repairs.

Photos from Milton Bush