There were four Blue Eagle aircraft operated by his squadron, which was first known as Oceanographic Air Survey Unit (OASU) and then as VX-8 (Air Development Squadron 8).
The Blue Eagles were Lockheed Super Constellation C-121J's. There were four Blue Eagles:
Blue Eagle I (BuNo 131627)
Blue Eagle II (BuNo 128444)
Blue Eagle III (Buno 131641)
Blue Eagle VI (BuNo 131655)
BE I was the radio-only psyops broadcaster. According to a post at http://www.aero-web....heed/c-121j.htm -
""Blue Eagle II, III and VI" were equiped with two commercial
TV broadcast transmitters, an AM radio transmitter and a
FM radio transmitter along with the supporting tape and film
machines. Those aircraft also contains a small 'studio' where
an AFRTS announcer worked during each evenings mission,
augmenting the tape and film programs with 'live' news and
commentary.
The squadron designation changed 3 times in that period.
Based at Pax River, we deployed crews to Viet Nam for 6-month
stints with a total of 4 aircraft flying missions from
Tan Son Nhut and DaNang. I made 2 deployments to Nam during
my time with the squadron as well as a "deployment" to
Lockheed Air Service at JFK for the overhaul of "Blue
Eagle I"."
Here are some entries from Smith's logbook that show, among other things, that he too was at JFK when Blue Eagle I was being overhauled.
The entries also show some flights between Saigon (TSN) and Bangkok. Notice on the first entry the length of these flights: almost 10 hours for the psyop flights in Blue Eagle I, flights which apparently involved flying circles over the Gulf of Tonkin (the broadcasts were designed to sound like they were coming from hidden transmitters in North Vietnam including fake transmissions about how the NVA was approaching the radio station so they had to shut down and run).