Grumman Albatross

Grumman HU-16 Albatross (N51ZD)

Didn't I just post a picture of a Grumman flying boat? Yes, I did, but it was a different model. Just how many different flying boats did Grumman make? A whole family, evidently:

 

Grumman Flying Boats Spreadsheet

Air Vectors has a page about Grumman flying boats.