planesmaker

Seems the new "proposal" has no further consultation with industry. Put out a extreme proposal , "consult with industry" then tone it down a little to what they really intended, and without further consultation, implement. Consultation is a farce! Tom

I wrote to Jabiru to suggest that CHT's should be fitted to every cylinder on every aircraft that leaves the factory, I received a reply saying that they are considering it but so far they have traditionally resisted to keep the price down. So there you have it, to provide us with a well priced aircraft. Tom

Thanks for sharing that Deb. Tom

OK , well done! What an inspiration to us all. Thanks for sharing.

Howe that is very clever. Tom

If an aircraft meets the applicability and eligibility criteria for registration and operation in a specific category, then the Authority, in this case RAAus, has no grounds to reject an application for either registration or a CofA/Permit to Fly or whatever certificate is applicable to that class of aircraft.KR has addressed the requirements to demonstrate the applicability requirements of CAO95.55 to his aircraft, therefore he is entitled to register and operate his aircraft in accordance with those requirements. If RAAus find a legitimate and verifiable breach of any of the applicability requirements, then they may refuse to allow that aircraft to operate under the provisions of CAO95.55. However, if RAAus cannot provide such evidence, then they cannot refuse to allow such an operation.

 

It doesn't matter that anyone thinks that it is not right, or he should go GA. Why KR wants to operate under the provisions of CAO95.55 are irrelevant (and frankly no one else's business). What people think about operating an RVx under CAO95.55 is irrelevant. What KR is entitled to is relevant.

 

The onus is on the operator to comply with the limitations imposed by that category of aircraft. KRs aircraft could retain two seats, and he could utilise both seats, as long as he complies with all operational limitations, whether they be weight limitations, fuel reserve limitations etc..

 

Should KR choose to not comply with those regulatory limitations, then like any pilot who breaks the rules, if caught, he is at the mercy of the Authority. However, if he complies with the regulations/limitations then he has the right to operate his aircraft in accordance with the relevant regulations.

So you sound quite upset about it? As you have said it is a more useful option in VH anyway. Why specifically do you want it in RAA? What is the advantage?

If RAA rego 2 people @ 80 kg will leave you 7 kg fuel about 10 lt enough to taxy on the apron! Let's say one of your kids is 40kg( if not yet, they soon will be at least this) 120kg leaves 47kg for fuel or 67lts or 2 hrs incl reserves. A fairly limited aircraft you would have to agree. I don't understand why you would want to limit your aircraft like this. Tom

Why would you want to register it with RAAus? At that weight it is an expensive single seat, with less than 170kg for people and fuel! 100ltrs of fuel will give maybe 2.5 hrs with reserves for 72 kg, leaves you with single seat. Sorry but RAAus is right to refuse registration for this. VH exp is a very valid alternative. Tom

It is 19 registered and I'm pretty sure it's a j160. Modelled after my installation. Tom

Contact area the same although they have increased torque and no loctite. Bigger nut meant we had to acquire another special tool. Tom

Question. Is the lump under the piston on the side of the offset? YES/NOhttp://www.jabiru.net.au/images/AVDALSR088-1_Piston_Offset.pdf

Dmech, thanks for that information. Tom

All I can suggest is to add a small diode on the signal wire. You can buy one for a coupe of dollars from auto electrician, they use them in alternators. The one I had problems with was a 3" vdo fitted to a skyfox. Worth a try. Tom

I doubt it's fuel related, if detonation is a problem surely there would be damage evidence on pistons. Doesn't take long to start to melt a piston with detonation.

Dmech could be on to something with resonance.

One thing I am sure of , Jabiru don't know what is causing them to break. I had to just shake my head when they put out a SB changing the nuts for nuts with more thread???? It wasn't the nuts that were the problem. Just fitted new bolts to 2200 and they came with bigger 12 point nuts that required using a 1/2" crows foot(instead of 7/16"). Bolt diameter remained the same, yes that should fix it,really?Tom

has anybody had any success in fitting and calibrating a 52mm VDO tachometer to a rotax 912/914 engine.

A j230 for 25k that would be a bargain. I would go for that. Yes I would fly it home after thorough inspection. Easily put a 912s in it and register it 19-

Jetjr

I invite you to come for a ride in my j400 at gross 700kg I think you will be very surprised. Tom

I don't think the overheating is causing through bolt failures or flywheel bolt failures.

50 years ago 1200 cc VW was rated at 40hp I believe, so I don't think 80hp is a lot for 2200cc. About the same hp/ cc as some ride on mowers! Tom

It sounds as though Garry Morgan has had good success ( see bad experience with Jab thread) with Jab engine cooling. I hope that the factory have asked him for his input, since overheating is a engine killer.

Well said Dafydd

Hi Planesmaker the top bolt u mention which side was that on oil filter side /dipstick side would appreciate your reply on thisA.D.

Yep And a serious portion of the Jabiru engined aircraft require 120 hp. So the "compared to Rotax"debate is a waste of breathOpps sorry unnecessary capital letter in first sentence

So could anyone confirm to me that the throughbolt failures occur only on the lower rows next to the pushrod tubes (as Bruce pictured above) please?

No, I have just replaced thru bolts on 2200 that had broken a top bolt. Flying school using avgas and maintained to the letter. Done about 400 hrs from factory bulk strip / repair where ,if I recall correctly , new thru bolts were fitted. Tom

Quite common actually. The later 6 pin plug units fail in start circuit. So they don't fail while running usually but next flight you can't start the engine. One usually fails at a time but you never know because engine will start on one unit. Rotax have apparently brought out an improved unit now but they have not done anything towards replacing defective units. Very expensive at around $1600 a pair inc freight! Tom

I can't help imagining how well Jabiru would do if they offered rotax power as an option. I feel they would have trouble...... Yes keeping up with the orders! Just saying. Tom

Just read RAAus newsletter, very surprised to see members market rates have jumped over 150%. And no free online. $55 for each online or magazine or $88 for both for 1 month????What else can members expect?