
Levine’s influence can be seen in Columbia’s proposed monoplane replacement for the Grumman J2F Duck, the XJL-1, in the forground of this photo. (U.S. Navy)
Levine’s influence can be seen in Columbia’s proposed monoplane replacement for the Grumman J2F Duck, the XJL-1, in the forground of this photo. (U.S. Navy)