Collection Item
The Charles T.P. Ulm collection of historical aviation records, Part 1, 1919-1965 1919-1962
Set course by aperiodic if Jim cannot fix E.I.C. then by signal tell me to go R or L until we on aperiodic course. Will then check on this steering compass
Call Number:
MLMSS 3359 SAFE / MLMSS 3359
Published date:
1919-1962