When the fires are burning,
The rotors are turning,
And the money's earning!
And in a B206, we didn't carry 1.5 hours of fuel, lucky to be an hour up in the Blue Mts (4000') and hot refuels when needed. Did 6 hours in the seat without shutting off the engine, land in a clearing, stand on the skids for a quick squirt, then airborne again - every little bit helps put out the fire.