Synthetic training aids
Shown in this picture is the Hagner Planetarium, a brightly-colored vehicle used by navigation cadets at Hondo Army Air field, Texas to ride herd on the stars. This intricate gadget helps the navigator get the "feel" of the 52 celestial bodies which show him the way as he directs his bomber through uncharted skies. The navigator can determine his position in the sky by sketching astronomical triangles involving his ship, the stars and certain points on the earth's surface. Hondo-trained navigators learn that these celestial signposts can give them an unerring signal to turn to the bombardier and say, "That's Tokyo, pal, bombs away!"