| Visual cueing aids to rotocraft landings  (1993) none none cueing aids, rotocraft landings In C. L. Blanken, J. V. Lebacqz, R. H. Stroub, & M. S. Whalley (Eds.), Proceedings of piloting vertical flight aircraft: A conference on flying qualities and human factors (pp. 4.1 - 4.20).  San Francisco, California: American Helicopter Society/NASA |