Dafydd Llewellyn

Thanks, Kaz. This might be an appropriate point for a little history lesson: In 1993, the Howard Government had, in its election platform, the introduction of an "American-style experimental category" into the Australian Civil Aviation Regulations; the SAAA and AOPA had been pushing for this, for decades. The Howard Govt got into power in 1994; and in 1996 the then Minister, John Sharp, set up the Review of Regulations; and one of its marching orders was to make good that election promise. The American Experimental "category" exists because the U.S. constitution gives the individual

All true - but probably not relevant. Basic reason for V engine.

Multiply the pressure load by the leverage ratio of the "ears" of the cylinder flange; it's not a direct load path. The flexure of the flange also puts bending into the bolts.

Ah - Thanks.

This is CASA you're talking about, remember. Jabiru holds the Production Certificate, so it's Jabiru they talk to. Q.E.D.

Camit make (to order) either an experimental "core rebuilt" Jabiru engine; or a CAE experimental engine. They are the same thing, physically, because it is cheaper for CAMit to repair the Jabiru engine by 100% "repair by replacement", than to reclaim parts from an existing engine. What that means is that when you take your old engine in, the whole thing goes into the bin, and what you get is 100% new parts. If you simply order a CAE engine, there's nothing to put into the bin - that's the difference. You can check the details with CAMit, but that's my understanding.

I've been pointing out the risk of this for some time. If I had a -D model Jabiru, I'd be ordering a CAE engine for it and shifting it to E24 registration ASAP.

I doubt he needs to - that will do nicely, I suspect.

Pardon, but are you not confusing cylinder head cracks with cylinder base cracks? Or have I missed something? No, as far as I know, Jabiru is not working with CAMit; and moreover, CASA have not made any contact with CAMit since this draft Instrument was issued, other than to verbally confirm that the Instrument did not apply to CAE engines.

You forget that the British industry was working on Government contracts - and there was a war looming. Jabiru has neither of these minor circumstances to help it.

They could hardly be inferior, since CAMit make the originals - apart from outsourced parts.

Do you not understand the difference between an engine made to one set of drawings and specifications, to one made from a different set? The Jabiru 2200 C, I say again (and again and again) has a Type Certificate issued by CASA. That TC refers to a specific Master Drawing List (it's on page 4 of the TCDS). Every Jabiru 2200C engine made by CAMit has to conform to that Master Drawing List; and CASA manufacturing division make sure it does, down to the last detail. Much the same applies to the other Jabiru engine models made by CAMit. All those engines have a Jabiru data plate. The CAE