Skip to content

Cyclocopter.md

Latest commit

 

History

History
228 lines (126 loc) · 8.24 KB

Cyclocopter.md

File metadata and controls

228 lines (126 loc) · 8.24 KB
Raw

☰: Cyclocopter

Also cyclogyro.

Contents

Abstract

Cyclocopter is a copter based on Cyclorotor as a main propulsion system.

Wikipedia: https://en.wikipedia.org/wiki/Cyclogyro

Video explaining cyclocopters with demonstration of an actual flying model: https://www.youtube.com/watch?v=JoVmejDsMrM

Video explaining cyclocopters with a deep historic overview: https://www.youtube.com/watch?v=Lqy_7lr6wuE

Videos of the first flying cyclocopters:

Manned

Cyclotech CruiseUp

Full-electric cyclocopter. Also horizontal omnicopter.

Status: Designing

Site: https://www.cyclotech.at/future-applications

Company: Cyclotech

Future crewed prototype developed by Cyclotech.

See unmanned scaled prototype: Cyclotech BlackBird Demonstrator

Specifications:

  • Range: 100km
  • Payload: 200kg
  • Max speed: 150km/h
  • Redundancy: allow 1 rotor failure

UAV

Cyclotech BlackBird Demonstrator

Full-electric cyclocopter. Also horizontal omnicopter.

Scaled prototype of Cyclotech CruiseUp

Instead of Cyclotech Technology Demonstrator with 4 cyclorotor, the BlackBird uses 6 in configuration, which allows to move any direction in horizontal plane without yaw.

The BlackBird is a horizontal omnicopter, as it does not tilt during acceleration/braking/sliding and can move sideways without yaw.

The BlackBird can also be a partial omnicopter, as it can maintain static stability at any pitch angle.

Site: https://www.cyclotech.at/rotor-solutions

Status: Testing

  • SUAV:Top: Largest flying cyclocopter.
  • SUAV:Top: Largest flying horizontal omnicopter.

Company: Cyclotech

  • Move: 3 axis
  • Rotation: 2 axis

News: https://www.cyclotech.at/news/newsroom/blackbird-demonstrator-maiden-flight

Video of first flight: https://www.youtube.com/watch?v=8OUyR9pCiVs (2025-03-27)

Cyclotech Technology Demonstrator

Full-electric cyclocopter.

Project highlights thrust-vectoring design similar to JetQuad or https://en.wikipedia.org/wiki/Bell_X-22.

First scaled prototype developed by Cyclotech.

Demonstrator uses 4 cyclorotors.

Demonstrator has compound helicopter like capabilities, as it does not tilt during acceleration/braking.

Demonstrator can also be a partial single-axis omnicopter (if it has enough thrust), as it can maintain static stability while rotating 360 degrees on the pitch axis, but that properties does not tested.

Status: Dismissed

Site: https://www.cyclotech.at/rotor-solutions

Company: Cyclotech

  • Move: 2 axis
  • Rotation: 2 axis

Video of first flight: https://www.youtube.com/watch?v=I2qkhmz4z1E (2021-10-05) Video of last flight: https://www.youtube.com/watch?v=oYOZYsHs7_Q (2024-12-19)

News: https://www.cyclotech.at/news/newsroom/cyclotech-starts-outdoor-flying>

Cyclotech CCY-01

Feasibility study of full-electric cargo horizontal omnicopter.

Status: Cancelled

Site: https://www.cyclotech.at/future-applications

Company: Cyclotech

  • Move: 2 axis
  • Rotation: 2 axis

Specifications:

  • Payload: 45kg
  • Range: 40km
  • Wind Resistance: 36.5knots
  • Dimensions: 2.7x2.5m

Seoul National University cyclocopters

A series of experimental cyclocopters.

Status: Unknown

Videos: https://www.youtube.com/@cyclocopter

Research center: Seoul National University

Note: The helicopter-like version from papers can be possible largest ever flying cyclocopter, but I can't find info on it.

Seoul National University cyclocopters Papers

  1. Design of an Effective Cycloidal Blade System and its Applications (2016-02)

    Lee, Chung-Hee

    Seoul National University, Department of Mechanical and Aerospace Engineering

    Keywords: Cycloidal blade system; Vertical take-off and landing; Cyclocopter; Vertical Axis Wind Turbine

    https://s-space.snu.ac.kr/handle/10371/118494 https://s-space.snu.ac.kr/bitstream/10371/118494/1/000000131885.pdf,

  2. DESIGN AND EXPERIMENT OF TWO-ROTORED UAV CYCLOCOPTER (2014-07-25)

    Choong Hee Lee, Seung Yong Min, Jong Won Lee, Seung Jo Kim

    Seoul National University, Korea Aerospace Research Institute

    Keywords: Cyclocopter, Cyclogyro, UAV, VTOL

    https://www.icas.org/icas_archive/ICAS2014/data/papers/2014_0725_paper.pdf

References:
  1. Wheatley, J.B., “Simplified Aerodynamic Analysis of the Cyclogiro Rotating-wing System,” NACA Technical Notes No.467, August 1933.
  2. Wheatley, J.B. and Windler, R., “Wind-tunnel Tests of a Cyclogiro Rotor,” NACA Technical Notes No.528, May 1935.
  3. Kirsten, F.K., “Cycloidal Propulsion Applied to Aircraft,” Transactions of the American Society of Mechanical Engineers, Vol. 50, No. AER-50-12, 1928.
  4. Kirsten, F.K., “Cycloidal propulsion in air,” Bulletin No. 79, Engineering Experiment Station Series, University of Washington, March 1935.
  5. Eastman, F.S., Burkheimer, G., and Cotter, W.E., “Wind Tunnel Tests on a High Pitch Cyclogiro,” UWAL Report No. 191-A, University of Washington Aeronautical Laboratory, Seattle, Washington, June 1943.
  6. Eastman, F.S., “The Full-Feathering Cyclogiro,” UWAL Report No. 317, University of Washington Aeronautical Laboratory, Seattle, Washington, March 1951.
  7. Gibbens, R.P. and Boschma, J.H., “Construction and testing of a new aircraft cycloidal propeller,” 13th AIAA Lighter-Than-Air Systems Technology Conference, Norfolk, VA, June 28-July 1, 1999.
  8. Boschma, J.H., “Modern Aviation Applications for Cycloidal Propulsion,” AIAA, Aircraft, Technology Integration, and Operations Forum, Los Angeles, CA, October 2001.
  9. Benedict, M., Chopra, I., Ramasamy, M. and Leishman, J.G., “Experimental Investigation of the Cycloidal-Rotor Concept for a Hovering Micro Air Vehicle,” American Helicopter Society 64th Annual Forum Proceedings, April 29 - May 2, 2008.
  10. Benedict, M., Ramasamy, M., and Chopra, I., "Improving the Aerodynamic Performance of Micro-air-vehicle-scale Cycloidal Rotor: an Experimental Approach." Journal of Aircraft, Vol. 47, (4), 2010, pp. 1117-1125.
  11. Benedict, M., Ramasamy, M., Chopra, I., and Leishman, J. G., “Performance of a Cycloidal Rotor Concept for Micro Air Vehicle Applications,” Journal of the American Helicopter Society, Vol. 55, (2), April 2010, Paper 022002.
  12. Benedict, M., Gupta, R., and Chopra, I., "Design, Development and Flight Testing of a Twin-Rotor Cyclocopter Micro Air Vehicle," American Helicopter Society 67th Annual Forum Proceedings, Virginia Beach, VA, 2011.
  13. PAUL E. HEMKE, “Drag of Wings With End Plates” Langley Memorial Aeronautical Laboratory, National Advisory Committee for Aeronautics, Langley Field, VA, January 20, 1927.
  14. D. E. Newland. 1971. “Whirling of a Cantilever Elastic Shaft Subjected to External Pressure”. In:Journal Mechanical Engineering Science, Vol. 14 No.1,pp. 11-1

SUAV

Astria

Back to readme