Hmm....page 2 of the reference in Koos Bouwknegt's document
http://members.home.nl/a.k.bouwknegt...%20circuit.pdf is a cut-and-paste from a PPRuNe post of mine from 5 Apr 2010......
Wander00, I was a member of the RAF's premier UAS, both as a student from 1969-73 and as a QFI from 1990-93. Which one? ULAS, of course,
not OUAS!