Probably the Cessna 150H referred to in a Queensland Coroner's report into the death of a pilot in a Supermarine Aircraft Spitfire ultralight. The Cessna was owned by Mike O'Sullivan, who manufactured Supermarine Aircraft scale Spitfire ultralights. 19-7055 was registered as an ultralight in 2009 and cancelled in 2013 after it was found to be more than 100kg over the weight claimed when registered. There was a 600kg MTOW limit for an ultralight at the time. The aircraft constructor's plate said it was a Supermarine Lite Flyer Raven c/n 01. Its original Cessna c/n is not known.
19-4721 is an Australian scratch-built design by Richard and Glenda Faint, of Bellbird Park, Queensland. Two built, 4721 registered in 2006. 19-4722 (c/n 002) badly damaged in a forced landing in 2010. 10 KT is apparently a reference to its crosswind limit, 10 knots.