Honeywell HTF7000 explained

The Honeywell HTF7000 is a turbofan engine produced by Honeywell Aerospace. Rated in the range, the HTF7000 is used on the Bombardier Challenger 300/350, Gulfstream G280, Embraer Legacy 500/450 and the Cessna Citation Longitude.Its architecture could be extended for a range of thrust.[1]

Operational history

The engine was originally designated the AS907, which was changed in 2004 to HTF7000; the AS907 designation is still used for legal and regulatory use.[2] By October 2016, 2.6 million hours had been logged by 1,400 in service engines and it has a 99.9% dispatch reliability rate.Average fuel consumption is about lb. per hour for a 7,765 lbf engine on a G280, to be compared to lb. per hour for a 4,420 lbf TFE731 on a G150.[1] More than 3.5 million flight hours have been logged till October 2017, and the 2,000th engine should be delivered in 2018.

Honeywell maintenance program is $447 for two engines per hour.[3] Borescope inspections extends time between overhaul and some engines have remained installed for up to 10,000 hr.[1] It has line replaceable components installed with hand tools and is designed for condition-based maintenance.[4]

Variants

HTF5000 / AS905
  • A thrust variant,[2] unsuccessfully targeted toward the Dassault Falcon 7X.[5]
    HTF7000 / AS907-1-1A[6]
  • 6826lbf original variant of the engine. Developed for the Bombardier Challenger 300.
    AS977
  • Higher thrust variant of the AS907, designed at the same time, intended to power BAE System's Avro RJX.[7] The aircraft was cancelled after three airframes were built and flown; subsequently this variant never entered production.
    HTF7250G / AS907-2-1G[6]
  • 7624lbf variant developed for use on the Gulfstream G280.[8]
    HTF7350 / AS907-2-1A[6]
  • 7323lbf Variant developed for use on the Bombardier Challenger 350.
    HTF7500E / AS907-3-1E[6]
  • 6540- variant developed for the Embraer Legacy 500/450 business jets[9] and the Praetor 500/600.[6]
    HTF7700L / AS907-2-1S[6]
  • 7550lbf for the Cessna Citation Longitude.[10]
    HTF10000
  • A nominal thrust variant.[11]

    Applications

    External links

    Notes and References

    1. Web site: Honeywell's Super-Midsize HTF7000 Engine . Oct 27, 2016 . David Esler . Business & Commercial Aviation . Aviation Week.
    2. News: Honeywell gives AS907 turbofan redesignation . Flight International . 13 January 2004.
    3. News: Pilot Report: Bombardier Challenger 350 . Fred George . Business & Commercial Aviation . Nov 1, 2014 . Aviation Week .
    4. Honeywell Engine Receives Certification for Textron Aviation's Cessna Citation Longitude . Honeywell . October 5, 2017 . October 6, 2017 . October 6, 2017 . https://web.archive.org/web/20171006211844/https://aerospace.honeywell.com/en/press-release-listing/2017/october/honeywell-engine-receives-certification-for-textron-aviation-s-cessna-citation-longitude . dead .
    5. News: . The 7X factors . June 14, 2003 . July 17, 2020 . limited.
    6. Web site: Honeywell AS907 engine service bulletin: Reduced intervals for oil filter analysis & ECU . September 2019 . July 29, 2020.
    7. Honeywell's AS907 gets nod, production begins . . Paul . Lowe . April 23, 2008 . August 2002 . 32–33 . 34 . 18.
    8. News: G280 Specifications . 2015 . Gulfstream . 2016-06-27 . https://web.archive.org/web/20160705224345/http://www.gulfstream.com/images/uploads/brochures/aircraft/G280SpecSheet.pdf . 2016-07-05 . dead .
    9. Web site: Embraer's Legacy 450/500 Engine Enters Test At Honeywell. . Guy Norris . Aviation Week & Space Technology . 24 May 2010.
    10. Cessna showcases new Citation Longitude at NBAA 2015; announces large cabin Citation Hemisphere . 16 November 2015 . Textron Aviation.
    11. News: . HTF10000 moves toward late-'08 core run . May 31, 2007 . Business Aviation . Curt . Epstein . July 17, 2020.

    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Honeywell HTF7000".

    Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.