Preliminary design of an agricultural airplane Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/fq977z390

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  • A design for an agricultural airplane is developed and evaluated, A biplane configuration was adopted since it provides better maneuverability and stall characteristics than a monoplane of comparable size and design simplicity. The airplane, powered by a 600-horse-power Pratt Whitney radial engine, was sized to carry a useful load of 2650 pounds. Unique features include interchangeable wings and a 55-cubic-foot payload hopper designed as an integral part of the fuselage structure: Airplane performance and stability characteristics were established using both empirical and theoretical methods. Performance characteristics investigated include maximum and minimum speed, rate of climb, turning radius, takeoff and landing distance, and operating range. The results are presented graphically as functions of gross weight and altitude. Sample calculations are included, The tail surfaces were sized to provide specified levels of longitudinal and directional stability. The dihedral effect required to maintain lateral stability was likewise determined. Center-of-gravity limits were established and a balance diagram constructed to ensure that items of equipment and structure are properly located for design stability and control. The control surfaces were sized using empirical data obtained from existing designs. No attempt was made to calculate stick forces since it was assumed that mechanical advantages could be used if necessary.
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  • File scanned at 300 ppi using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-04-28T18:24:37Z (GMT) No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1163312 bytes, checksum: 768db3b378a45bd45322377d8b3c508f (MD5)
  • description.provenance : Submitted by Lauren Kaysen (lkscannerosu@gmail.com) on 2014-04-24T22:56:41Z No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1184663 bytes, checksum: 07df858f61d1733beb7e8bcfa5653335 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-25T14:05:13Z (GMT) No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1184663 bytes, checksum: 07df858f61d1733beb7e8bcfa5653335 (MD5)
  • description.provenance : Rejected by Patricia Black(patricia.black@oregonstate.edu), reason: Replace on 2014-04-25T18:33:47Z (GMT)
  • description.provenance : Made available in DSpace on 2014-04-28T18:24:37Z (GMT). No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1163312 bytes, checksum: 768db3b378a45bd45322377d8b3c508f (MD5) Previous issue date: 1967-05-02
  • description.provenance : Submitted by Lauren Kaysen (lkscannerosu@gmail.com) on 2014-04-25T18:35:04Z No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1163312 bytes, checksum: 768db3b378a45bd45322377d8b3c508f (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-25T18:57:04Z (GMT) No. of bitstreams: 1 LetzkusHowardJ1967.pdf: 1163312 bytes, checksum: 768db3b378a45bd45322377d8b3c508f (MD5)

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