A pitch trimmer can cause a catastrophic structural failure in an aeroplane, but this is avoidable

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dc.contributor.authorStratton, Guy
dc.date.accessioned2019-03-21T16:45:29Z
dc.date.available2019-03-21T16:45:29Z
dc.date.issued2019-03-14
dc.description.abstractThis paper investigates the potential of a lever-type pitch trimmer to cause an overstress in light and microlight aeroplanes. It concludes that this potential exists and could potentially cause a catastrophic structural failure – with the evidence from one reported fatal accident suggesting that this may have already happened. However, it is shown that this need not be the case, with restricted nose-up control authority, high manoeuvre stability and the use of a trim wheel (as opposed to a lever) with a restrictive rate of control input shown as three methods, most likely in combination, by which this potential can be removed. Suggestions are made for airworthiness standard wording which might be used to ensure adequate safety of future aircraft designs.en_UK
dc.identifier.citationGratton GB. (2019) A pitch trimmer can cause a catastrophic structural failure in an aeroplane, but this is avoidable. The Aeronautical Journal, Volume 123, Issue 1260, February 2019, pp. 174-190en_UK
dc.identifier.issn0001-9240
dc.identifier.urihttps://doi.org/10.1017/aer.2018.157
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14002
dc.language.isoenen_UK
dc.publisherRoyal Aeronautical Aocietyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectFlight testen_UK
dc.subjectPitch trimmeren_UK
dc.subjectLongitudinal stabilityen_UK
dc.subjectStructural failureen_UK
dc.subjectCertificationen_UK
dc.subjectMicrolight; VLAen_UK
dc.subjectPart 23en_UK
dc.titleA pitch trimmer can cause a catastrophic structural failure in an aeroplane, but this is avoidableen_UK
dc.typeArticleen_UK

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