Thank you Creampuff. Project13/01 confirms what I think I've read: Unless there is some exemption for experimental aircraft, which I cannot find, then the compass, altimeter and airspeed systems must be TSO'd or approved specifically by CASA for any Australian aircraft.
Furthermore, radio equipment must also comply with TSO's if it is required by regulation in a particular class of airspace or operation.
The only let out I can see is if it is approved by a part 35 delegate, which I don't know about yet.
So you commit an offence under part 91 if you fly with an uncertified required instrument. And it's 50 penalty units. , and it says nothing about being only applicable to IFR, despite the commentary.
What now concerns me is if the installation is also required to be approved.
Last edited by Sunfish; 15th Apr 2013 at 06:50.