Skip to content

Flight Dynamics and Stability of a Tethered Inflatable Kiteplane

by E. J. Terink, J. Breukels, R. Schmehl, W. J. Ockels
Journal of Aircraft ()
Get full text at journal


The combination of lightweight flexible-membrane design and favorable control characteristics renders tethered inflatable airplanes an attractive option for high-altitude wind power systems. This paper presents an analysis of the flight dynamics and stability of such a kiteplane operated on a single-line tether with a two-line bridle. The equations of motion of the rigid-body model are derived by Lagrange's equation, which implicitly accounts for the kinematic constraints due to the bridle. The tether and bridle are approximated by straight line elements. The aerodynamic force distribution is represented by four discrete force vectors according to the major structural elements of the kiteplane. A case study comprising analytical analysis and numerical simulation reveals that the amount and distribution of lateral aerodynamic surface area is decisive for flight dynamic stability for the specific kite design investigated. Depending on the combination of wing dihedral angle and vertical tail plane size, the pendulum motion shows either diverging oscillation, stable oscillation, converging oscillation, aperiodic convergence, or aperiodic divergence. It is concluded that dynamical stability requires a small vertical tail plane and a large dihedral angle to allow for sufficient sideslip and a strong sideslip response. © Copyright 2010.

Cite this document (BETA)

Authors on Mendeley

Readership Statistics

41 Readers on Mendeley
by Discipline
90% Engineering
5% Computer Science
5% Physics and Astronomy
by Academic Status
37% Student > Master
24% Student > Ph. D. Student
10% Professor > Associate Professor
by Country
12% Netherlands
2% India
2% United States

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in