Empty weight: 10,624 lb (4,819 kg)
Max. takeoff weight: 23,500 lb (10,660 kg)
lets go for crew and a bit of fuel 7,000kg.
Powerplant: 2 × General Electric T700-GE-701C turboshaft, 1,890 hp (1,410 kW) each
So 3,700hp and 7 tonnes.
500hp per tonne (or ton or short ton, who cares?).
Fast as ****.