Fixed-Wing approach techniques for complex environments

Thomas, Peter R., Bullock, S., Bhandari, U. and Richardson, T. S. (2015) Fixed-Wing approach techniques for complex environments. The Aeronautical Journal, 119 (1218): 4109. pp. 999-1016.
Copy

The landing approach for fixed-wing small unmanned air vehicles (SUAVs) in complex environments such as urban canyons, wooded areas, or any other obscured terrain is challenging due to the limited distance available for conventional glide slope descents. Alternative approach methods, such as deep stall and spin techniques, are beneficial for such environments but are less conventional and would benefit from further qualitative and quantitative understanding to improve their implementation. Flight tests of such techniques, with a representative remotely piloted vehicle, have been carried out for this purpose and the results are presented in this paper. Trajectories and flight data for a range of approach techniques are presented and conclusions are drawn as to the potential benefits and issues of using such techniques for SUAV landings. In particular, the stability of the vehicle on entry to a deep stall was noticeably improved through the use of symmetric inboard flaps (crow brakes). Spiral descent profiles investigated, including spin descents, produced faster descent rates and further reduced landing space requirements. However, sufficient control authority was maintainable in a spiral stall descent, whereas it was compromised in a full spin. - See more at: http://aerosociety.com/News/Publications/Aero-Journal/Online/3384/Fixedwing-approach-techniques-for-complex-environments#sthash.dfFiOay6.dpuf

visibility_off picture_as_pdf

picture_as_pdf
Jrnl_2015_Thomas_et_al_Fixed_wing_approach_techniques_for_complex_environments.pdf
subject
Draft Version
lock
Restricted to Repository staff only

Request Copy

Atom BibTeX OpenURL ContextObject in Span OpenURL ContextObject Dublin Core MPEG-21 DIDL Data Cite XML EndNote HTML Citation METS MODS RIOXX2 XML Reference Manager Refer ASCII Citation
Export

Downloads