Hawker Siddeley HS 138
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The Hawker-Siddeley HS.138 was a British VTOL concept for a strike aircraft.[1]
Development
The HS.138 was a twinjet light attack aircraft with cranked arrow wings and VTOL capability. It was designed to combine the ability to achieve high speeds when attacking a target with the low-speed search and strike capabilities of an attack helicopter. It would have used 4x Rolls-Royce RB.202 wing mounted lift fans with a thrust of 4670 kgf each and 2x Rolls-Royce RB.172 turbofan main engines with a thrust of 2300 (3480) kgf each. The strike version had a crew of two (pilot and radar intercept officer) and could carry a weapon payload of 907kg. The combat radius would be 132 miles (213 km) at a speed of 652mph (1050 km/h).
Specifications
- crew=2
- length ft=49
- span ft=30
- height ft=12.6
- engines number=2 Rolls Royce RB 172 turbofans
- max speed mph=690
- cruise speed mph=652
- combat range miles=132
References
- ↑ Hatfield Future Projects Newsletters No.24, April 1988. 1969: HS138/145 VTOL Fan Lift W.S.R (Wide Speed Range) projects...
