Keywords: TBM-3W APS-20 NAN4-46.jpg View of the APS-20 radar of a U S Navy Grumman TBM-3W Avenger ca 1945/46 U S Navy Naval Aviation News April 1946 http //www history navy mil/nan/backissues/1940s/1946/Apr46 pdf 1945/46 USN PD-USGov-Military-Navy TBM Avenger early warning aircraft |