1. The HUD provides precise and flexible information to allow the pilot to easily determine the aircraft's basic situation.
2. The HUD provides pseudo approach and landing capability that allow pilot to evaluate the handling quality and performance of the aircraft at altitude.
It can use for pilot training or system evaluation before committing to an actual landing.
3. The HUD Radar Guidance System provides a precise approach and landing capability for VMC or IMC condition by displaying perspective runway, an accurate flight path symbol and gamma prediction symbol. It may allow the pilot to use the same techniques both VMC and IMC.
4. The radar guidance B mode provides to pilot to use it not only for STOL configuration but also for any other configuration.
The HUD concepts developed may be useful and effective for future advanced display designs not only for STOL but also for CTOL
REFERENCES
1) Sasaki,M., et al., "Installation and Operation of the FJR71O Engine in the NAL-QSTOL 'Aska." International Gas Turbine Congress in Tokyo, Japan, October 26 1981
2) Bando,T. et al., "Some Topics of Aska's Flight Test Results and its Future Plan," SAE Technical Paper Series 872311, December 1981
3) Yamato,H. et al., "Flight test of the Japanese USBSTOL Experimental Aircraft Aska," AIAA,4th Flight Mechanics Conference, AIAA-88-2180, May 1988
4) Okada,N. et al., "The Current Status of the Flight Test of the Aska," SAE Technical Paper Series 881433, October 1988
5) Yazawa,K., lnagaki,T., "Landing simulation for development of Head-Up Display(HUD), "JSASS 12nd Annual meeting, April 1981
6) Tanaka,K. et al., "The first flight simulator test of the head- up display for NAL QSTOL experimental aircraft(Aska)," NAL TM- 554, October 1986
7) Yazawa,K. et al., "Fight test using B-65(Queen-Air) of the HUD for NAL QSTOL," 22nd JSASS aircraft symposium, November 1984
8) Yazawa,K. et al., "Radar Guidance by HUD, 23nd JSASS aircraft symposium, October 1985
9) Yazawa,K. et al., "A Consideration of Ground Effect of Powered Lift Aircraft," 26th JSASS Aircraft Symposium, October 1988
10) Masui,K. et al., "Response Characteristic on Ground Effect of Powered Lift Aircraft," 26th JSASS Aircraft Symposium, October 1988
11) Masui,K. et al., "Display of flight path predictiQn by HUD and flight path response of NAL QSTOL experimental aircraft(Aska)," 27nd JSASS aircraft symposium, October 1989
12) Yazawa,k. et al., "Landing test of radar guidance by HUD for NAL QSTOL experimental aircraft(Aska)," 27nd JSASS aircraft symposium, October 1989
13) Robert,R.R., "Head-up display system evaluated," Aviation week & space technology, January 10 1971
14) Bray,R.S.,and Scott,B.C., "A Head-Up Display Format for Transport Aircraft Approach and Landing," NASA CP-2170, 1980
15) Hynes,C.S.,Franklin,J.A.,Hardy,.G.H.,Martin,J.L. and lnnis,R.C., "Flight Evaluation of Pursuit Display for Precision Approach of Powered-Lift Aircraft," AIAA Journal of Guidance and Control, Vol.12,Number 4, July-August 1989 pp. 521-529
16) Bailey,R.E., "Effect of Head-Up Dynamics on Fighter Flying Qualities,"AIAA Journal of Guidance and Control,Vol.12,Number 4, July-August 1989 pp. 514-520
17) Tanaka,K., Yazawa,K., Masui,K., "The Second Flight Simulation Test of the Head-Up Display for NAL QSTOL Experimental Aircraft (ASKA)", NAL TM-633, February 1991
