Northrop N-3PB Royal Air Force 330 (Norwegian) Sqn. 21
Northrop designed the N-3PB during 1939. It was a single-engine low-wing monoplane, with a pair of Edo floats attached to the wings.
The three crewmen sat in a row, with the pilot and gunner/ observer under the main canopy and the ventral gunner/ radio operator/ bombardier in a position in the lower-rear of the fuselage
No.330 (Norwegian) Squadron was an anti-submarine warfare squadron manned by Norwegian personnel
N-3PB-002 by Rodolfo Emme, su Flickr
N-3PB-003 by Rodolfo Emme, su Flickr