S55

S55, S-55, S.55 stands for:

• the Sikorsky S-55 helicopter
• a series of Explorer satellites from NASA: S-55 (Explorer)
• the flying boat Savoia-Marchetti p.55
• the Siemens S55 mobile phone
• the BMW S55 engine

This is a disambiguation page for differentiating between several terms identified with the same word.