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Coming to Terms: Airworthiness Certification

Coming to Terms: Airworthiness Certification

  • 25 Aug 2023 03:43 PM
  • 0

This series addresses uses of vertical flight aviation terminology that are unclear or incomplete, and so at risk of being confusing, misleading, unfavorable, erroneous or prejudicial. This installment addresses the misuse of terminology regarding FAA airworthiness certification.

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Coming to Terms: Runway Independence

Coming to Terms: Runway Independence

  • 01 Jul 2023 07:18 PM
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This series addresses the uses of terminology that threaten to become routine expressions or idioms — or already are — but are misleading, unfavorable, erroneous or prejudicial. This installment addresses terminology for vertical takeoff and landing capability derived from a fixed-wing perspective.

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Coming to Terms: Research is Not Development (But Development is Sometimes Research)

Coming to Terms: Research is Not Development (But Development is Sometimes Research)

  • 02 May 2023 10:05 AM
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This series addresses terminology that is misleading or erroneous, and proffers definitions to be used as canonical.

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A Taxonomy of VTOL Aircraft Configuration Types — Part 3: Reinventing the Wheel

A Taxonomy of VTOL Aircraft Configuration Types — Part 3: Reinventing the Wheel

  • 24 Feb 2023 09:57 PM
  • 0

This series addresses terminology that is misleading or erroneous, and proffers definitions to be used as canonical.

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Coming to Terms: Taxonomy of VTOL Aircraft Configuration Types — Part 2

Coming to Terms: Taxonomy of VTOL Aircraft Configuration Types — Part 2

  • 11 Jan 2023 09:06 AM
  • 0

This series addresses terminology that are misleading or erroneous, and proffers definitions to be used as canonical. Here the basic terms of propulsion architectures are discussed.

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Coming to Terms: Taxonomy of VTOL Aircraft Configuration Types — Part 1

Coming to Terms: Taxonomy of VTOL Aircraft Configuration Types — Part 1

  • 13 Nov 2022 09:33 AM
  • 0

This series addresses the uses of terminology that are misleading or erroneous, and proffers definitions to be used as canonical.

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Coming to Terms: Rotor Redux

Coming to Terms: Rotor Redux

  • 04 Jan 2022 11:57 AM
  • 0

This series addresses the uses of terminology that drift toward becoming routine expressions or idioms — or already are — but are misleading or erroneous. Last issue’s “Coming to Terms” column on the definition of the word “rotor” generated a significant amount of discussion. The article was featured on the VFS eVTOL.news website and e-newsletter, with several thoughtful comments posted the first day, followed by emails to the author and Vertiflite.

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Coming to Terms: Rotor

Coming to Terms: Rotor

  • 27 Oct 2021 11:49 AM
  • 3

This series addresses the uses of terminology that drift toward becoming routine expressions or idioms — or already are — but are misleading or erroneous. This installment proposes a more rigorous approach to the terms for rotary-wing propulsors on vertical lift aircraft.

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Coming to Terms: Model Based

Coming to Terms: Model Based

  • 02 Sep 2021 11:22 AM
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This series addresses the uses of terminology that threaten to become routine expressions or idioms — or already are — but are misleading or erroneous. This installment clarifies what is a model-based method, and identifies distinctions between and complexities of various approaches.

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Coming to Terms: The Design

Coming to Terms: The Design

  • 29 Jun 2021 08:05 PM
  • 0

When someone talks about “The Design,” keep in mind that it’s a reference point… but it’s only the plan. 

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