TY - BOOK AU - Seckel, Edward TI - The landing flare [NASA CR-2517] [Bound With NASA CR-2515-2516,2518-2521, Lack No. 2519: an analysis and flight-test investigation PY - 1975/// CY - Washington, D.C. PB - NASA. N1 - Bound With NASA CR-2515-2516,2518-2521, Lack No. 2519 ER -