allergic2Luxembourg t1_irq5sa4 wrote on October 10, 2022 at 4:47 AM

Reply to comment by fuzzy9691 in TIL that passenger jet engines produce most of their thrust from fan at the front, not from the jet exhaust, and that this is called a high-bypass engine. by Rilot

I work at an aircraft engine company and we really do call them jet engines. Properly speaking we build turbofans but those are a subset of jet engines.

allergic2Luxembourg t1_irq5k04 wrote on October 10, 2022 at 4:45 AM

Reply to comment by InevitableRip8968 in TIL that passenger jet engines produce most of their thrust from fan at the front, not from the jet exhaust, and that this is called a high-bypass engine. by Rilot

That's an oversimplification. Turboprops are more efficient at certain altitudes and Mach numbers, and jet engines at others. Thus why turboprops are used in shorter-range applications and jet engines in longer-range. The industry is most certainly choosing the right engine for efficiency as one of the major driving factors (though weight is also considered).