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There is still a jet stream coming out of the engine propelling the aircraft. Unlike a turboprop where only the propellor generates thrust.

> Unlike a turboprop where only the propellor generates thrust

Each of turbojets, turboprops and turbofans generate thrust with exhaust.

Turboprops have no meaningful thrust component from the exhaust.

Almost. Wikipedia says 10%, which is kinda meaningful but really not much. Even some piston engines (like in WW2 fighters) get 2% or so from exhaust.