Active Standard: F2506 - 13
Committee F37 has been contacted in writing by several major distributors / importers of Light-Sport Aircraft to Australia. Same as in several other countries, the Australian Light-Sport Rule does allow the use of in-flight adjustable (variable pitch) propellers. Aircraft equipped with this feature had been accepted in the past. Unfortunately, the Australian Airworthiness Authorities have started to withdraw Certificates of Airworthiness from aircraft in operation, and move these aircraft under experimental certificate. They also decline to accept new registrations of aircraft with in-flight adjustable propellers. The reason quoted for this is, that the ASTM standard does not provide requirements for this feature. As was expressed by the Australian distributors / importers, this is significantly impacting usage of Light-Sport Aircraft in Australia and has already caused multiple training stations to stop flight training using LSA aircraft. Experimental aircraft are not permitted for flight training. Named distributors / importers have requested F37 to consider enhancing the applicable standards, to cover in-flight adjustable propellers. The approach is actively supported by propeller manufacturers being part of the task group that has iterated this ballot proposal.
Keywordslight sport aircraft; propeller; Light sport aircraft (LSA); Light sport airplane (LSA)--specifications; Propellers;
Ballot Item Approved as F2506-2013 and Pending Publication