HS.125 CC1

The Hawker Siddeley HS.125 CC1, introduced in the early 1960s, was the first production model of the HS.125 series, a twin‑engine business jet that set new standards for corporate aviation. Developed from the earlier P.1127 research aircraft, the CC1 first flew on 22 April 1962 and entered service with the British Ministry of Defence as a light transport and liaison platform before being adopted by commercial operators worldwide. Powered by two Rolls‑Royce Viper turbo‑jets, the jet offered a cruise speed of Mach 0.78, a range of roughly 2,200 km and a pressurised cabin that could accommodate six to eight passengers in comfort. Its tricycle landing gear and relatively low approach speed made operations from small airfields feasible, while the aircraft’s simple, robust airframe yielded low maintenance costs. The HS.125 CC1 became the foundation for a family of models that dominated the business‑jet market for three decades, influencing design philosophies of later midsize jets such as the Learjet 35 and the Dassault Falcon 20. Its blend of performance, reliability and versatility cemented Hawker Siddeley’s reputation and helped define the modern executive‑travel era.

Hawker Siddeley

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Design & Classification