Aircraft power plant operation - USA Voorschrift, Technical Manual, 1-408 Aerostatics - USA Voorschrift, Technical Manual, 1-325 Elementary weather for air crew trainees - USA Voorschrift, Technical Manual, 1-231 Harmonization of aircraft fixed guns and sights - USA Voorschrift, Technical Manual, 1-495 Aviation engineers - USA Voorschrift, Tentative Technical Manual, 5-255 defense space interests Hearings before the committee on science and astronautic U.S. House of Representatives 87th congress, 1st Session, 17 - 23 march 1961 national meteorological satellite program Hearings before the Committee on Science and Astronautics U.S. House of Representatives 87th Congress first session, 25-27 july 1961 Survival in the air age : a report / by the President's Air Policy Commission AAHS journal Eerste Deel Behelzende De Historie der Ontdekkinge van dit Wereldsdeel en der Verovering van een gedeelte van 't zelve door de Spanjaarden: de algemeene Beschryving … Communist propaganda "Yankee go Home" Proceedings of a Conference on results of the first U.S. manned suborbital space flight, June 6, 1961, U.S. department of state auditorium / National Aeronautics …