Zonsen Aero Engines - Rapture Aviation (Adelaide)

[facthunter]

Its been happening.  They are too long and the steel doesn't expand as much as the Alloy. It's not an uncommon problem in such designs. . Be interest to have my question answered.  Nev

[fallowdeer]

Give it a rest Nev.  Another completely unsubstantiated sweeping generalised negative comment from you about the 912 series.  
 

50,000+ mostly happy users must be all wrong aye….

[BrendAn]

1 hour ago, facthunter said:

Its been happening.  They are too long and the steel doesn't expand as much as the Alloy. It's not an uncommon problem in such designs. . Be interest to have my question answered.  Nev

Where do you get these stories 

[Rapture]

4 hours ago, Blueadventures said:

The cylinder fins look turned 90 degrees to the air flow and looks like the coolant jacket extends under the head onto the upper area of the cylinder. very different to the lower hp version I've seen reviews on.  Thanks for post.

The 110hp CA510 has no Rotax equivalent. It is fully water cooled, and does not require any air cooling of the heads etc. This explains the different architecture of this model.

[FlyBoy1960]

3 hours ago, BrendAn said:

Where do you get these stories 

He just makes them up.    keyboard warrior with google and gpt to add to the diatribe.

Edited April 30 by FlyBoy1960

[facthunter]

Not made up at all,. But carry on IF it makes you feel better. Do your own proper research if you really care. Nev

[BrendAn]

1 hour ago, facthunter said:

Not made up at all,. But carry on IF it makes you feel better. Do your own proper research if you really care. Nev

Every time Rotax is mentioned you say how badly designed they are and all the problems they have.

Yet no one else has much trouble with them. Yesterday I was talking to my instructor about aircraft and he said 912 are bullet proof. He has thousands of hours behind 912 uls and has never had an issue. 

[facthunter]

I critically examine  many aircraft engine in dept and they ALL have some design Faults No engine is bullet proof particularly piston engined ones. Rotax later motors are becoming more highly stressed and complex.  People say Merlins were a great Engine and the highest TBO ever was 650 Hours .

  My comment wasn't generalised. It was related to the LONG studs holding alloy bits together that get Hot and expand at different rates.. Nev

[BrendAn]

59 minutes ago, facthunter said:

I critically examine  many aircraft engine in dept and they ALL have some design Faults No engine is bullet proof particularly piston engined ones. Rotax later motors are becoming more highly stressed and complex.  People say Merlins were a great Engine and the highest TBO ever was 650 Hours .

  My comment wasn't generalised. It was related to the LONG studs holding alloy bits together that get Hot and expand at different rates.. Nev

Good post. 

[facthunter]

Thanks.  Nev

[Red]

4 hours ago, facthunter said:

I critically examine  many aircraft engine in dept and they ALL have some design Faults No engine is bullet proof particularly piston engined ones. Rotax later motors are becoming more highly stressed and complex.  People say Merlins were a great Engine and the highest TBO ever was 650 Hours .

  My comment wasn't generalised. It was related to the LONG studs holding alloy bits together that get Hot and expand at different rates.. Nev

Indeed your comment wasn't generalised it was directed at specific engines, well done on not admitting you were  mistaken and handing out some general info as if it legitimises your specific criticism.

You do this often.

 

 

[facthunter]

I'm pretty hard on them all But a lot are compromised by Poor management Particularly starting techniques and Avoiding Prohibited rpms, MP/ Rpm combinations over propping  and using motor for short periods where they never get Properly warmed up. Motor cowled with adjustable Cowl flaps and properly Baffled with Air blast tubes on the parts that need them to be specially cooled  and Lagged fuel Lines etc. ie Properly Installed .  Nev

[Red]

Its a known Jabiru thing, you've got the wrong engine

[facthunter]

Different Cause in the Jabiru.  Some similarity.  I'm not that stupid as to be confusing the  two... Jabiru fretted the cases .Nev

[Rapture]

And getting back onto topic, progress has been made on the J160 Zonsen conversion.  The restoration of the J160 moves ahead with the new glass having now been installed.  The airframe itself is now pretty well done with a new factory interior to be installed.

Here she is with the new glass installed.