turboshaft

noun

tur·​bo·​shaft ˈtər-bō-ˌshaft How to pronounce turboshaft (audio)
: a gas turbine engine that is similar in operation to a turboprop engine but instead of being used to power a propeller is used through a transmission system for powering other devices (such as helicopter rotors and pumps)

Examples of turboshaft in a Sentence

Recent Examples on the Web Relentless will be the largest commercial model in the Bell family, with capacity for 16 passengers and two pilots, and will reportedly be able to cruise at 184 mph for a range of 667 miles, with twin GE turboshaft engines providing redundancy. Basem Wasef, Robb Report, 11 Feb. 2024 It’s equipped with a three-blade rotor system and an in-house GT50 turboshaft engine good for 400 hp. Rachel Cormack, Robb Report, 13 Apr. 2022 This twin-hull, low-wing design with 12 turboshaft engines is more like DARPA’s original concepts and is optimized for on-water stability and seakeeping. IEEE Spectrum, 14 Feb. 2023 Unlike the 212, the Huey II remains a single-engine helicopter powered by a Honeywell T53-L-703 turboshaft engine with 1,800 shaft-horsepower. Eric Tegler, Forbes, 23 Dec. 2021 The power train will be hybrid in the sense of having electric lift rotor assemblies, while still employing turboshaft thrusters for the most efficient and longer-range flight. J. George Gorant, Robb Report, 23 Dec. 2021 The copter, with two Safran Arriel 2E turboshaft engines, is also designed for single-engine flight. Michael Verdon, Robb Report, 25 Apr. 2021 The new engines that replace the 4,500-hp Pratt & Whitney JFTD-12 turboshafts of the current helicopter are sourced from an as yet unnamed manufacturer. Eric Tegler, Popular Mechanics, 9 Mar. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'turboshaft.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of turboshaft was in 1958

Dictionary Entries Near turboshaft

Cite this Entry

“Turboshaft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/turboshaft. Accessed 21 May. 2024.

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