Fuel Burn rates
Obviously they were either mentally or physically absent from class the day TAS vs IAS was taught.
Our As 350B3 with OAT at plus 25( 1500 ft ) fully loaded using 9 bananas on the FLI is around 195litres an hour about 115 kts
MD 500 with C20b engine uses around 110 litres an hour at 75 psi ( max cont 81.3) which gives around 125 kts
MD 500 with C20b engine uses around 110 litres an hour at 75 psi ( max cont 81.3) which gives around 125 kts
That forestry chart is interesting, but imo the burn rate for the A119 is pretty optimistic. 55Gal/hr would be about 166kg/hr - in cruise it is closer to 200kg unless at higher altitudes.
I am guessing they got than from the manufacturer as I have never seen a 119 on fires in the US.
Fuel Burn
This discussion reminded of a related situation in the late 60’s at Sikorsky. We had started a Commercial Skycrane Marketing effort and on-site demonstrations were a key part. Now the S-64, no matter what you were doing, burned 3000 lb/hr and it went up from there when hovering with a max load. At this time pilot office personnel were not paid overtime but rather got compensatory time, which was sort of OK, IF your job allowed you to use it.. BUT, the older members of this forum might recall the S&H Green Stamp program. Well, the guys flying that Crane really raked in a truck load of green stamps. Counting the aux tank, the total fuel load could be 9000 lbs, but of course for the most part, the 3000 lb aux tank was used for ferry to the next stop. After awhile, management found out about it and a dustup occurred, of course. Disclaimer: your truly didnn’t get involved with that operation but for a trip to the high arctic on a Canadian freighter in 1971. No green stamps at Resolute Bay/Pond Inlet/Arctic Bay etc.
