K3HVG wrote:
For information, after WWII, many airlines tried to use the BC-375 and
the ART-13. The ART-13 was infinitely more successful and was used well
into the 1950's by the US military and airlines, albeit with some
modifications. My particular ART-13 was used in a NASA aircraft into the
1960's, as indicated by the date on the frequency chart.

Any indication which aircraft? What is on the chart?
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."