One that always puzzled me was 'Bluebell One', usually a Varsity operating out of West Malling; what did it do?
That puzzled me because I have a very vague recollection of it, not sure why: however Google and PPRuNe are your friends, as lo and behold, from this very boutique, namely the
Varsity thread...
WL 681 was indeed a Shorts operated aircraft. My father Peter Harrison was Chief TP for Shorts Flying Services Division and operated WL 681 on equipment trials from Rochester 1953 to 1964 and from West Malling 1964 until he retired in 1977. Bluebell 1 was his call sign taken from the small village near Rochester airfield, Bluebell Hill where we lived. He is still with us today and at 92 remains an avid reader of Flight each week.
While at West Malling they also operated two other Varsitys. When I can get to his log books I will post the serial numbers.
Nick Harrison