S-tank: investigation regarding increasing the engine output

Memo (dated 1964-02-22) from Bofors regarding various possibilities in increasing the engine output of the S-tank. Options mentioned are a supercharged 275 or 300 HP version of the Rolls-Royce K-60 piston engine (a 240 HP version powered the first incarnation of the S-tank), a 300 HP Volvo piston engine in development for use on the pbv 302 APC and a Boeing 553 turbine.

Archive reference: SE/KrA/0266/005/01:H/F II/5