SK - two-seat aircraft (group A version) J200 - two-seat aircraft J400 - four-seat aircraft J450 - four-seat aircraft with STOL wing Current Models J430 - four-seat aircraft with winglets for best compromise between STOL performance and speed Engines Jabiru produces its own range of lightweight, four-stroke, horizontally opposed, air-cooled engines, specifically designed and engineered for use in aircraft. All engines are direct drive and are fitted with alternators, mufflers, and dual ignition systems as standard. Over 3,900 four-cylinder engines and over 2,900 of the six-cylinder engines have been produced. Early Models Jabiru 1600; four-cylinder horizontally opposed engine Jabiru 5100; eight-cylinder horizontally opposed engine Current Models Jabiru 2200; or four-cylinder horizontally opposed engine Jabiru 3300; six-cylinder horizontally opposed engine In November 2014, the Australian Civil Aviation Safety Authority (CASA) required passengers to sign an acknowledgement of risk before flying, and restricted IFR-equipped aircraft to day VFR flight within gliding distance of a safe place to land. In the following two years, CASA inspectors witnessed the tear-downs of failed Jabiru engines and also high-time engines that had not failed. In 2016, this resulted in exemptions to these restrictions for all aircraft that complied with the manufacturer's engine maintenance manuals, service letters, bulletins, flight operation manuals and that had no unapproved modifications. Both the manufacturer and Recreational Aviation Australia (RA-Aus) opposed the restrictions as unnecessary and unwarranted. RA-Aus reported that it was supplied with only a fraction of CASA's source data – just a day before submissions closed – and that CASA seemed to have excluded all engine reliability data post-"early 2014". References External links Aircraft manufacturers of Australia Aircraft engine manufacturers of Australia