Introductory comparison of agricultural and single-engine air tanker operational loads

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Authors
Rokhsaz, Kamran
Kliment, Linda K.
Advisors
Issue Date
2018-01-07
Type
Conference paper
Keywords
Structural load , Landing gear , Strain gauge , Indicated airspeed , Maximum takeoff weight , Gust load , Flight phases , Burning rate , Pilot , Digital flight data recorder
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Rokhsaz, K., & Kliment, L. K. (2018). Introductory comparison of agricultural and single-engine air tanker operational loads. Paper presented at the AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018, (210049) doi:10.2514/6.2018-2236 Retrieved from www.scopus.com
Abstract

Flight loads of aircraft flown for agricultural applications have been compared with those flown as single-engine air tankers to assess the dependence of the load factors exerted on these airframes on the type of operation. Recorded flight data from two Air Tractor AT802A aircraft, two PZL-M18 airframes, and one Ayers Thrush S2R-T45 have been used for this analysis. Gust and maneuver loads spectra have been extracted for various phases of flight. It is shown that firefighting aircraft experience relatively large load factors during the drop phases once or twice a mission, while agricultural operations subject the aircraft to less severe load factors, but many more times per mission. It is also shown that the load factor alone may not be the proper indicator of the stresses exerted on the airframe.

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Publisher
American Institute of Aeronautics and Astronautics, Inc.
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AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
2018
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