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Bell Textron KH-4 vs Sikorsky S-51

Side-by-side aircraft model specifications (max across variants).

SpecBell Textron KH-4Sikorsky S-51
ICAO typeKH4S51
MTOW1,200 kg2,200 kg
Range220 nm210 nm
Cruise speed76 kt70 kt
Service ceiling18,000 ft14,000 ft
Max seats44
Length10 m13 m
Wingspan