jetjr

Great info Need more knowledge on no offset pin? Doesnt this get into the whole debate on which way to orient piston? Wouldnt know a part number by any chance?

How does the $165k compare to how much given to RAA and others to manage their compliance

146 kg weight varies a short wing Jabiru stall just 3 kts Setting both mtow and max stall sets max energy to some extent. Even if higher stall speed regularly used it is limited. Why 45kts dirty, chosen..........who would know

Find out what day the servo gets its delivery and avoid. New fuel stirrs up all the water and crud I think its legal for operators to add some products, and they do depending on price of components The brand of servo doesnt relate to refinery it comes from, especially in regional areas

I know little of these engines however it was also discussed IF there was found to be out of spec rod/ bush, it was recommended factory exchange units used as there was some skill needed to insert. They are present even in new factory built engines If true, its even more of a worry as to why it wasnt picked up

Reading somwhere the failure rate in effected bushes is quite high, like 1 in 5 fail test Serious end results so a significant and urgent SB For interest what would this inspection cost?

Not all telstra shops are equal, some are franchises and have stuff all access or insight into telstra In the real telstra stores theres often a senior person who can sort billing problems out

There would be marquees, scaffolds, chairs, tables, PA, barricades, facilities like Aero club??, cleaners, several thousand L avgas for some display aircraft, pay for display aircraft and pilots. Fair bit of travel expense for organizers, (they dont just turn up for the day). Certain key people would need paying to turn up and work on the day. All the volunteer help on gates etc take portion of gate fees, But by far the greatest is Insurance Id guess. An event open to public, council liability requirements, small aircraft plummeting into crowds........can see dollars requested being significant. I have no real info on this however can see significant expenses. I would have thought the airshow would be a big consumer of funds but it also get lots to turn up. Remember this event is the combining of two of three events and still it finds it hard to stack up. What does that say for aviation in AU and those involved?

The location of the event has been argued to death Plenty to say about whats wrong with Narromine but few alternatives.Most other suitable places have crap weather, CTA or unwilling hosts. Some of the cheapest regional flights in AU land up to 8 times a day 30 min up the road. From the OzR info posted it would appear they werent against Avplan being there just that they stump up to do so.

Plenty of aircraft last year, 200 + i recall Biggest light aircraft event in AU i would have thought by a long way Taking kids/ teenagers to this could easily create interest in flying

Unfortunately without airshow or a drawcard, few show up. Especially the non aviation crowd the industry badly needs the support of. Ausfly relied on members support, like a fly in, and it dried up. There was last year over zealous closure of airfield. Dont think it actually happened as published.

The deal on RAA website link has shared backing and done through PSB Hopefully not impacted as it seems good value

There is no way these events "stand on their own", they would be a financial loss to every exhibitor. Nebulus advertising or brand promotion value, maybe but a few magazine adds might go further. What it does do is provide a promotion to light aviation generally. If someone is prepared to stump up big money to be an name or even exclusive sponsorship, good on them. If you want them to donate even more then more has to be offered.. Those who want to just be exhibitors have to take whats on offer, tent, stand or if they run out before you commit ..... no stand Sure as anything, flogging someone elses deal on facebook resulting in damage to them, will result in people not wanting to be involved. The events been cancelled before due to lack of funds and looks like it could happen again. RAA dont run the event, they sponsor too id guess. Members money saved the event before I believe when SAAA had trouble. A sponsor of the size OzRunways offering would be a very valuable thing for the organisers. Risk that to keep a single other potential exhibitor happy? Not likely.

There is some Jabiru users running Moreys with good sucess. Well experienced to tell the difference too I have an issue with volumes used and cost Fuel additives, now theres a forum pad topic.

Interested in statistics on driving "per trip"?? How would anyone know how many trips taken in vehicles. Hard enough extroplating hours flown in aircraft to km travelled. Would indicate a 2 trip to the shops driver has the double the fatality risk as a 150,000km per year professional driver, (they do 1 trip per day) Reads as BS statistics to suit a hypothesis for some insurance company..

J120 even less Demonstrator with lots of fruit and new engine for sale now for $59K inc GST As a first up trainer pretty hard to beat

Maybe the Sling owner doesnt really want it to be hired unless earning well from it Some good tax reasons to keep an expensive toy on a businesses books

Interesting if it happened in flight Plenty of reasons a battery might end up flat

Dont think anyone really knows what caused the circlip problems but a series of pretty poor decisions and QA on suppliers was the root problem Id guess A long series of explanations and excuses were floated at the time CAE added under piston cooling jets Interesting the engine in the original post is actually a Jabiru fitted with CAE heads, I believe the heads are still intact as are the valves so no fault can be levelled there. It will be interesting to see how badly damaged is the case.

Circlip grooves made out of round, then repaired and installed Not out of round pistons... No doubt correct about low stresses on piston but it seems still too mich for some reason. Could of course be a QA issue.

Older type, appeared cast, were 430g Newer all machined are 412g Jabiru are lighter with significant crown material removed and have left and right versions They also fit them reverse to many's thinking but thats a debate already well worn Who? Any LSA aircraft or Jabiru engines who need to operate without CASA restrictions MUST fit Jabiru supplied parts, whatever they are selling at the time.

CAE kept with round circlip, which never came out but were a difficult to fit in situ. Not only was there square circlip quality problems, they bent, but they were/are punched so have round and square edges, wrong way round can come out. There are several people looking for replacement pistons if someone knows of source and skills to machine in round pin groove

Dont think so any more, they are a copy of a GM designed piston, altered to suit application Gudgeon clip grooves and Jabiru have valve pocket done too. Another attempt to reduce parts cost. They are an 040 piston from common holden engine - V6? Why CAE kept on this track of using cheap copies does surprise, all other parts were reverted back to high quality OEM. My experience sees weights vary greatly and apparantly there has been issues with machining out of round and being redone, also the known circlip problems They are a very "good value" standard unit and there are also several versions. Weights vary by 13 grams so they have to be paired up. No doubt better units are available to reduce expansion differential. These are std GM design so theres high grade stuff available There was mention someone was sourcing Mahle (ACL) forged pistons or similar and using them. Anyone know? One example I heard of the piston appreared to break apart " explode" in operation - not pretty There was mention of stress points not relieved in latest models. All hearsay

Interesting There have been several of these now Considering boh CAE and Jabiru have essentially the same cheap piston as do the new Jabiru, its a very relevant failure.

So by CASA rep point of view a non radio aircraft would be the safest? but they cant enter CTAF-R?? That is unless all aircraft ADSB out fitted...........unless GPS fails or signal disturbed. Must be chaos inside CTA? Theres a low level cut off in Oz R - shouldnt do that