ORIGINAL: rcmaniac6

I am trying to document when the EU1-A pattern aircraft was first produced or available as a plan set?? I think it was close to 1975, and if it was then or before it will qualify as a Senior Pattern Aircraft. If anyone has documentation or information, like dated plans or articles, etc. please send the info to me at "[email protected]"

Thanks, LTC James E. Beasley, Gallatin, TN