Hello Graham If you wish to maintain or vary your aircaft under the old Australian unique Civil Aviation Order (CAO) No.101.28 to the standard to which it was built under the old Amateur Built Aircraft Approval No. 45 then any changes you make must be documented and approved by the Civil Aviation Safety Authority (CASA). CASA repealed 101.28 some three years ago and no longer issues new ABAAs for homebuilts but they will honour old approvals.
CAO 101.28 has been replaced by the "Experimental" category. Under this category you can do what you like to your aircraft so long as you are not endangering the lives or property of other people. This means you are free to experiment with different CoG, gross weight etc. However your final inspection by a CASA authorised person is likely to be heavily conditioned should you push the envelope too far. Do not fly the KR2 in the rear 2" of CoG envelope, that is 14"-16" aft of WRLE...it is dangerous. CASA actually limited CoG to 8" -12" under 101.28. Careful positioning of your engine should allow you to remain within these limits although fuel is very limited with two people. I recommend you approach the Sport Aircraft Association of Australia regarding the new legislation and about how you can transfer your registration from the old 101.28 to the new experimental. It is unlikely the Ultralight Federation will have any role because the KR2 is usually too heavy, too fast and has a too higher stall speed to trigger the ultralight legislation. Hope this helps. Please note this is Aussie stuff and might not apply elsewhere in the netters world!! Regards John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: [email protected] ----- Original Message ----- From: "Graham & Ruth Strout" <[email protected]> To: <[email protected]> Sent: Wednesday, March 24, 2004 11:52 PM Subject: KR> Standards > The following is a question I put to our regulator (Australian Ultralight Federation) and then I've include their answer. > I recently purchased a KR-2 (28-4085) and after some small alterations (ie change of number, new seats,rework damaged fibreglass) I then intented to tackle and make better a Cof G problem. The aft CofG limit is 302mm from the datum (WRLE) and if this is what I have to work with, it seriously limits the usable fuel. The header tank is 72 litres of which I can only burn off 28 litres before the CofG is outside the envelope!. Am I able too extend the aft CofG to 330mm as in some other KR-2s?. If not am I able to remove the retractable undercarriage and replace it with a fixed undercarriage which slopes slightly forward. I can then recalculate the E.W and Cof G without the engine, calculate the engine arm,and move the engine forward far enough to get the CofG right after max fuel burn off and not have the plane fall on it's nose. Seperate parts of this have been done by different builders but some were done under the VH experimental. Am I able to perform this sort of work under the 28 category? > Answer : As this A/C is a 101-28, and is built to a std eg FAR 23. > This means that the A/C must be maintained to this approved std. > If the mods you propose are out side the std to which your A/c was > built to, this will mean that you will not be able to modify this A/C. > My comment : Good grief, what next! Is there such a standard? Where can I find them?Can I do these modifications and still comply with these stds? Does the Rand company approve modifications to there design? Were can I find a list of these approved designs? Has anyone got some legal ideas? > _______________________________________ > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html >
