Development of an Ultralight with a Ducted Fan

Authors

  • Jiří Brabec
  • Martin Helmich

DOI:

https://doi.org/10.14311/1624

Keywords:

available thrust, required thrust, propulsion, ducted fan

Abstract

This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft of this kind are mentioned, e.g. the design of the airframe, and the design of the propulsion unit. The paper describes the specific procedure for determining the basic thrust characteristics of this unusual aircraft concept, and also the experimental determination of these characteristics. Further options for applying the experience gained during the work, and the futurefocus of work on these issues, are outlined at the end of the paper.

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Author Biographies

Jiří Brabec

Martin Helmich

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Published

2012-01-05

How to Cite

Brabec, J., & Helmich, M. (2012). Development of an Ultralight with a Ducted Fan. Acta Polytechnica, 52(5). https://doi.org/10.14311/1624

Issue

Section

Articles