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"older ICE powered prop planes" in this context means any prop plane, and about 95% of those used for GA. Brand new ones require leaded gasoline as well because
by pc86 3y ago
"older ICE powered prop planes" in this context means any prop plane, and about 95% of those used for GA. Brand new ones require leaded gasoline as well because with the exception of fuel injection the engine designs are basically identical to those 50s and 60s era planes.
- sojournerc 3y agoBeing pedantic, but turbo-prop planes use a jet engine to turn the propeller, and so use jet fuel. That's going to be bigger twins and prop planes like the Pilatus
- froggit 3y agoBeing more pedantic, turboprops use gas turbine engines to power the propeller. "Jet engine" is incorrect when referring to gas turbine engine other than turbojets, such as turboprops, turbofans and turboshafts. Turbojets were the first variant of gas turbine engine to be put into use so "jet engine" ended up being used as a common term. Modern "jet planes" often use turbofans for their greater efficiency at similar performance levels, but "fan plane" sounds silly. The M1 Abrams uses a turboshaft engine but I've never heard it called a "jet tank" (which sounds badass).
- sojournerc 3y agoI appreciate the double pedantry. I should've known intuitively that a turboprop isn't a jet engine because the thrust comes from the prop not the exhaust.
- lazide 3y agoUnrelated pedantry - even still, significant thrust does come from the jet engine. 5-10% typically.
- Reason077 3y agoThey don't require leaded gasoline, they require 100-octane gasoline. It's just that until recently, a certified, unleaded 100-octane avgas did not exist.