Ravenair call signs Apr 26, 2012 16:48:53 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Beemer on Apr 26, 2012 16:48:53 GMT 1 Nice to see that Ravenair have given helpful call signs to their P-68's using the last two letters of the registrations. Heard to-day were, G-OBSR RVR3SR G-BMOI RVR3OI Regards Beemer.