Stability and Takeoff Ground Roll Issues of Hybrid Buoyant Aircraft

Abstract:

In the field of aviation it is well known that a vehicle’s stability and takeoff flight segment are critical. This issue becomes more critical for a hybrid aircraft which is concealed as an airship with huge volume of hull as compared with fuselage of a conventional aircraft. In the present work, stability issues of a generic model of airship and of a conceptual model of hybrid aircraft are discussed. Special emphasis is given for future sizing of empennages of IWHA-14, a hybrid aircraft concept proposed for Malaysian inter island transportation. Effect of gondola position on rotation angle for takeoff ground roll was analyzed and it was found that such configurations can meet the requirement of minimum roll angle.

• Periodical: Applied Mechanics and Materials (Volume 660)
• Pages: 503-507
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.660.503
• Online since: October 2014
• Authors: Anwar Ul Haque, Waqar Asrar, Ashraf Ali Omar, Erwin Sulaeman, Jaffar S. Mohamed Ali
• Keywords: Airship, Buoyancy, Certification, Hybrid Buoyant Aircraft, Stability

References

[1] A.U. Haque, Asrar, A. A Omar, E. Sulaeman, and JS.M. Ali, Static longitudinal stability of a hybrid airship, Proc. 2014 11th Int. Bhurban Conf. Appl. Sci. Technol. Islam. Pakistan, 14th - 18th January, 2014, p.343–348, Jan. (2014).

DOI: 10.1109/ibcast.2014.6778167

[2] D.E. Clakins, A feasibility study of a trans-ocean hybrid cargo airship operating in ground effects, in AIAA LTA Conference, (1975).

DOI: 10.2514/6.1975-929

[3] P. A. Mackrodt, Further studies in the concept of delta-winged hybrid airships, J. Aircr., vol. 17, no. 10, p.734–740, Oct. (1980).

DOI: 10.2514/3.57960

[4] R. S. Pant, A methodology for determination of a baseline specifications of a non-rigid airship, November, p.1–9, (2003).

[5] Transport Airship Requirements of Fedral Aviation Aviation Authority, 2000. [Online]. Available: http: /www. faa. gov/aircraft/air_cert/design_approvals/airships/airships_regs.

[6] A. Moutinho and R. Azinheira, Stability and Robustness Analysis of the AURORA Airship Control System using Dynamic Inversion, no. April, p.65–70, (2005).

DOI: 10.1109/robot.2005.1570450

[7] X. -L. Wang, Computational Fluid Dynamics Predictions of Stability Derivatives for Airship, J. Aircr., vol. 49, no. 3, p.933–940, May (2012).

DOI: 10.2514/1.c031634

[8] M. Acanfora and L. Lecce, On the development of the linear longitudinal model for Airships stability in heaviness condition, p.33–40.

[9] Grant E Carichner and Leland M Nicolai, Fundamentals of Aircraft and Airship Design: Volume II, Airship Design. American Institute of Aeronautics and Astronautics, AIAA, (2013).

DOI: 10.2514/4.868986

[10] A. D. Andan, W. Asrar, and A. A. Omar, Investigation of aerodynamic parameters of a hybrid airship, J. Aircr., vol. 49, no. 2, p.658–662, Mar. (2012).

DOI: 10.2514/1.c031491

[11] A. U Haque, Waqar Asrar, Ashraf A Omar, E. Sulaeman and J.S.M. Ali, Conceptual design of a winged hybrid airship, in 21st AIAA Lighter-Than-Air Systems Technology Conference, 2014, pp. AIAA–2014–2710.

DOI: 10.2514/6.2014-2710

[12] D. P. Raymer, Aircraft Design: A Conceptual Approach, 4th Editio. Reston: American Institute of Aeronautics and Astronautics, AIAA, (2010).

[13] FAA, Regulations on Airship Design Criteria, FAA P-8110-2, (2001).

[14] C. -23 (2012) EASA, Certification Specifications for Normal, Utility, Aerobatic and Commuter Category Aero planes CS-23, Amendment 3., [Online]. Available: http: /www. easa. europa. eu/agency-measures/certification-specifications.

[15] A. Gamaleyev, ESTOLAS Project Description, 2012. [Online]. Available: http: /www. estolas. eu.