On: Covid and Cascading Collapses

[TylerE]

Revolutions and fuel consumption don't really correlate. It's not like the engine injects a fixed amount of fuel every cycle.

[Rury → TylerE]

When acceleration isn't happening (i.e travelling at a constant speed under constant load), it largely does correlate.

[TylerE → Rury]

It's not a straight line. Brake Specfic Fuel Consumption (gal/hp-hr) is often higher in the lower 3rd of the rev band. Across the bulk of the RPM range the BFSC curves are basically flat for most engine. Throttle position matters much more than RPM.