USS Piper SS-409 (1959)

#otd USS Piper SS-409 anchored in Cannes, France on 3 December 1959. Seen here after her Fleet Snorkel Program upgrade (SCB-47B), on the bow is the BQR-4A bow sonar. #usspiper #ss409 #fleetsnorkelprogram #silentservice #navalsafari #aviationsafari #aviationpreservation #boneyardsafari