If I read the flight manual HE/HS correctly @20C
2550 lbs mtow short skids
Hover ceiling c18 4200ft
c20 8500ft
Various decrements for scavenge air, blade tape, electrics etc.
Fuel is 431 lbs usable/435 onboard standard tanks.
Ask 500 driver for an OEW
I do stand to be corrected....