Helicopter Sikorsky S-55 Serial 55-770 Register IZ650 used by Bharatiya Vayu Sena (Indian Air Force). Built 1954. Aircraft history and location Aircraft History IZ650 Bharatiya Vayu Sena 1954-09-08Sikorsky S-55 c/n 55-770, ff:? del India Supply Mission as IZ650, 08Sep54. Send Updates Use APP to upload photo @ (optional) When Now? / / Send