Definition
An airplane powered by one turboprop engine — a turbine engine that drives a propeller through a reduction gearbox. The turbine produces shaft power, which spins the propeller to create thrust, while a small amount of residual jet thrust comes from the exhaust.
Plain English
A plane with one engine, where a jet-style turbine spins a propeller instead of pushing the plane along like a pure jet does.
Context Anchor
Seen in airplane handling and approach discussions, especially when comparing how different types of airplanes behave during a power-off approach.
Derivation
Turboprop' combines 'turbine' (the spinning engine core) and 'propeller'. The name simply tells you how power is made (turbine) and how it's used (propeller). 'Single-engine' means one of these powerplants is installed.
Why Pilots Care
Aircraft type affects glide performance, handling, and decision-making during power-off approaches and emergency landings.
Intuition Check
Do not read “turboprop” as just “a propeller airplane” or as “a jet.” It is a propeller airplane, but the engine turning the propeller is a turbine engine.
Example Sentence 1
He transitioned from a piston single to a single-engine turboprop and had to relearn power management for the new engine.
Example Sentence 2
Instructors often use single-engine turboprops for cross-country training because of their efficiency.