Rotorcraft operating envelope expansion using extendable chord sections

Annual Forum Proceedings - AHS International

Volumn 3, Issue , 2009, Pages 1940-1953

  Léon, Olivier ^a   Hayden, Eric ^a   Gandhi, Farhan ^a  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BLADE SECTION; FLAT PLATE; FLIGHT ENVELOPE; GURNEY FLAPS; HIGH-LIFT DEVICES; MAXIMUM SPEED; MORPHING; PRACTICAL REALIZATIONS; ROTOR POWER; SIMULATION RESULT; TRAILING EDGES; TRAILING-EDGE FLAPS;

DRAG;

HELICOPTER ROTORS;

EID: 70350518908     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (12)

1. Yeo. H., "Assessment of Active Controls for Rotor Performance Enhancement," Journal of the American Helicopter Society, Vol. 53, (2), April 2008, pp. 152-163.
2. Maughmer, M., Lesieutre, G., and Kinzel, M., "Miniature Trailing-Edge Effectors for Rotorcraft Performance Enhancement," AHS 61st Annual Forum, Grapevine, TX, June 2005.
3. Bae, E.-S., Gandhi, F., Maughmer, M., "Optimally Scheduled Deployment of Gurney Flaps for Rotorcraft Power Reduction," Proceedings of the 65th Annual Forum of the American Helicopter Society, Grapevine, Texas, May 27-29, 2009.
4. Liu, L., Friedmann, P. P., Kim, I., and Bernstein, D., "Rotor Performance Enhancement and Vibration Reduction in Presence of Dynamic Stall Using Actively Controlled Flaps," Journal of the American Helicopter Society, Vol. 53, (4), October 2008, pp. 338-350.
5. Liu, T., Montefort, J., Liou, W., Pantula, S.R., "Lift Enhancement with Static Extended Trailing Edge," Journal of Aircraft, Vol. 44, No. 6, November-December 2007, pp. 193 9-1947.
6. Kobiki, N., Kondo, N., Saito, S., Akasaka, T., Tanabe, Y., "Active Tab, a New Active Technique for Helicopter Noise Reduction," 29th European Rotorcraft Forum, Friedrichshafen, Germany, September 16-18, 2003, Paper No. 50.
7. Bluman, J., "Reducing Trailing Edge Flap Deflection Requirements in Primary Control through a Moveable Horizontal Tail," Master's Thesis, the Pennsylvania State University, University Park, 2008.
8. Bluman, J., Gandhi, F., "Reducing Trailing Edge Flap Deflection Requirements in Swashplateless Primary Control with a Moveable Horizontal Tail," Proceedings of the 65th Annual Forum of the American Helicopter Society, Grapevine, Texas, May 27-29, 2009.
9. Steiner, J., Gandhi, F., Yoshizaki, Y., "An Investigation of Variable Rotor RPM on Performance and Trim," Proceedings of the 64th Annual Forum of the American Helicopter Society, Montreal, Canada, April 29 - May 1,2008.
10. Bousman, W.G., "Aerodynamic Characteristics of SC 1095 and SC I 094R8 Airfoils," NASAJTP-2003-2 12265, 2003, pp. 26-37.
11. Duling, C.T., "Further Investigations on Helicopter Primary Control Using Trailing Edge Flaps," Master's Thesis, the Pennsylvania State University, University Park, May 2008.
12. Duling, C.T., Gandhi, F., Baeder, J., Jose, Al., "Analysis of CFD Predictions for the SC-1094R8 Airfoil with a Trailing Edge Flap," Submitted to the Journal of Aircraft, March 2009.