Helicopter project of 1968.
L.Benes "Ceskoslovenske Vrtulniky", 1998
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Technical data for HC-3T
Number of seats: 6, engine: 1 x M-601H rated 383kW, rotor diameter: 11.60m, gross weight: 1980kg, empty weight: 1070kg, maximum speed: 210km/h, cruising speed: 160km/h, rate of climb: 8.2m/s, absolute ceiling: 5000m, hover ceiling outside of ground effect: 2000m, range: 330km