(Photo by Edward Lundquist) Royal Danish Navy SB 90 craft aboard the flexible support ship (now classified as ASW frigate) HMDS Esbern Snare. (Edward Lundquist photo) The Swedish-built Combat Boat ...
These 51m-long subs were built for the Royal Swedish Navy in 1968. The first of the four Challenger-class submarines was launched in 1997 in Sweden. RSN personnel trained with the Royal Swedish Navy.