Document Detail

The mechanics of flight in the hawkmoth Manduca sexta. I. Kinematics of hovering and forward flight.
MedLine Citation:
PMID:  9418029     Owner:  NLM     Status:  MEDLINE    
High-speed videography was used to record sequences of individual hawkmoths in free flight over a range of speeds from hovering to 5 ms-1. At each speed, three successive wingbeats were subjected to a detailed analysis of the body and wingtip kinematics and of the associated time course of wing rotation. Results are presented for one male and two female moths. The clearest kinematic trends accompanying increases in forward speed were an increase in stroke plane angle and a decrease in body angle. The latter may have resulted from a slight dorsal shift in the area swept by the wings as the supination position became less ventral with increasing speed. These trends were most pronounced between hovering and 3 ms-1, and the changes were gradual; there was no distinct gait change of the kind observed in some vertebrate fliers. The wing rotated as two functional sections: the hindwing and the portion of the forewing with which it is in contact, and the distal half of the forewing. The latter displayed greater fluctuation in the angle of rotation, especially at the lower speeds. As forward speed increased, the discrepancy between the rotation angles of the two halfstrokes, and of the two wing sections, became smaller. The downstroke wing torsion was set early in the halfstroke and then held constant during the translational phase.
A P Willmott; C P Ellington
Related Documents :
19855339 - Acute effects of various weighted bat warm-up protocols on bat velocity.
22837459 - Spectral transmission of the principal-eye corneas of jumping spiders: implications for...
22582879 - High-intensity 405nm light inactivation of listeria monocytogenes.
22720429 - Chemical degradation of polyacrylamide by advanced oxidation processes.
23237789 - Vertically aligned carbon nanopillars with size and spacing control for a transparent f...
22685339 - Stereoacuity in the periphery is limited by internal noise.
7675239 - Motion of the cerebellar tonsils in chiari type i malformation studied by cine phase-co...
22501629 - Effect of the inter-aural sound level differences on the speech intelligibility.
22353569 - Auditory motion in depth is preferentially 'captured' by visual looming signals.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of experimental biology     Volume:  200     ISSN:  0022-0949     ISO Abbreviation:  J. Exp. Biol.     Publication Date:  1997 Nov 
Date Detail:
Created Date:  1998-01-20     Completed Date:  1998-01-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0243705     Medline TA:  J Exp Biol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  2705-22     Citation Subset:  IM    
Department of Zoology, University of Cambridge, UK.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Flight, Animal*
Manduca / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Advisory Committee on Dangerous Pathogens (ACDP). Seminar on microbiological risk assessment, 28 Jan...
Next Document:  The mechanics of flight in the hawkmoth Manduca sexta. II. Aerodynamic consequences of kinematic and...