Airborne automatic direction finder installations (low & medium frequency).
Airborne automatic direction finder installations (low & medium frequency).
Airborne automatic direction finder installations (low and medium frequency)
- [Washington, D.C., 1969].
- v.
7/7/69. CRDP Program Historic Shelflist record.
Aids to navigation.
TD 4.8/2:20-63
7/7/69. CRDP Program Historic Shelflist record.
Aids to navigation.
TD 4.8/2:20-63