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Firewall forward kit for Jabiru/Rotax 912


zodiac3813

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My jab is going really well! I am really happy with it, it's a great airframe ( world class), low maintenance, strong etc, and the rotax just goes so nicely in it. Compared to a C172, it will lift more weight, climbs much better, cruises faster with 1/2 the fuel burn! What more could you want? Tom

My thoughts exactly...what a shame they cant be factory produced, i reckon they would outsell everything including and become the gold standard trainer for both RAA and GA flight schools cross the world...

Its a crazy concept that they have at least trialed it in some market against the jab option and then looked at the volumes and margins

 

Now that the "915 is" will become available, that and a J230/400 are a match made in heaven.If only one company was not such short sighted......

That would be one amazingly capable machine 10 knots quicker, a lot better short field performance and insignificantly heavier...Imagine the remote farmers, businesses and even passenger transport options if you could register one of these as certified GA with a rotax in it.... This would make most 172 and 152 worthless overnight, because the fuel savings in commercial applications would be too big to ignore. Infact I wonder fi Cessna themselves might take on one of these engines in the near future. It would certainly provide a benefit of new v old.

 

The biggest problem I see is that i think every one would go the rotax, eliminating yet another aviation engine and allowing Rotax to charge even higher than high prices. We really do get severely ripped off when you think of their scales and costs... Consider that an entire japanese car with similar engine size is around half the cost...

 

It surprises me that one of the japanese manufacturers has not entered the market with the margins that are on offer, compared the the thin margins on cars. Clearly volumes are tiny, but with margins like Rotax has its surely only a matter of time till one of the Jap brands has a crack at it. And with the global military drone market booming, using these types of engines, now is the time to enter.

 

 

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A nice combo no doubt but the 914 or 915 will place the aircraft into a crowded $140K market, mainly factory built LSA of very high standards.

 

10kts quicker is headed towards a problem with Vne just 20kts above current cruise speed and manouver speeds at 96 (24kts BELOW cruise) anyway

 

Not sure youd get it without IFA prop and that adds even more $$ and weight.

 

Margins are one thing, volume is another.

 

See what Bex can deliver.

 

 

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It surprises me that one of the japanese manufacturers has not entered the market with the margins that are on offer, compared the the thin margins on cars. Clearly volumes are tiny, but with margins like Rotax has its surely only a matter of time till one of the Jap brands has a crack at it. And with the global military drone market booming, using these types of engines, now is the time to enter.

I'm pretty baffled too. Someone like Honda with the bikes and cars technology and data they have, could probably build and simulate on a computer in a very short period a Rotax beating engine.

 

I have a mental picture of a Rotax board meeting.

 

Chairman stands up " What do ya reckon fellas, bump the price of our aero engines again?". Board bursts out laughing, nodding their heads. Someone shouts " Yeah and double that for the spare parts!!".

 

"OK, bump it 5% and 10% on the spares, now who's shout at the pub?"

 

They all file off laughing that no matter how high the price, people still pay................

 

 

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A nice combo no doubt but the 914 or 915 will place the aircraft into a crowded $140K market, mainly factory built LSA of very high standards.10kts quicker is headed towards a problem with Vne just 20kts above current cruise speed and manouver speeds at 96 (24kts BELOW cruise) anyway

 

Not sure youd get it without IFA prop and that adds even more $$ and weight.

 

Margins are one thing, volume is another.

 

See what Bex can deliver.

Only the 230 would be up around the 140 mark but surely schools would love a 160 or 170 size which going off jabs price list and not removing anything for their motor (not saying it's worthless, just saying I havnt deducted anything from the price) would end up around 120-130. Those sums are fairly conservative I would think the money saved from the jab engine would lower the price a bit more than that or you could option it up to that (options can add up quick!)

 

 

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Like most service sides of business id say it makes very little and carries big headaches.

 

Unless Jab themselves are on board it wont be able to be used for trainng and just experimental and you can do the swap now

 

Very few do

 

 

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Like most service sides of business id say it makes very little and carries big headaches.Unless Jab themselves are on board it wont be able to be used for trainng and just experimental and you can do the swap now

Very few do

Most businesses I know that sell and service make far more off the servicing and parts..

 

Yeh the point i was hoping was that Jabiru factory would get behind a Jabirotax...but i can see why he wont...however if CASA doesnt get off his case, he might have no choice going forward.

 

Problem is once that happens i think we can almost guarauntee a rapid and continual rise in the cost of rotax engines and parts

 

 

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Yeh the point i was hoping was that Jabiru factory would get behind a Jabirota

 

Maybe not as popular idea as some on this site think.......Many, myself included, are not interested in the Rotax engine in the slightest, and quite happy with our current engines.

 

The CASA BS, and those who pushed for it, well that's another matter but I'll reserve my comments on that matter, at this stage anyway.

 

 

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It was available recently "6 months or so) and on this site by link. I don't have the link.( Oscar may) Explained the history and the reasoning. The Jabiru motor is very light weight, and they didn't want to be dependent on another engine manufacturer, like they were with the KFM. Nev

 

 

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Agree but if there are no other manufacturers we may have 90% unimpressed because Rotax start charging $40K per 912ULS

 

Monopoly = bad

 

Competition = good

 

Overheating and other issues = bad

 

Future = ??? so lets be careful what we say

 

 

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Meanwhile, back at the 'Firewall forward' thread, there is a Rotax Service agent, with manufacturing capability, that has done one conversion with another coming.

 

This was a J230 fitted with a standard 912ULs and 3 blade Sensenich ground adjustable prop.

 

Depending on pitch setting, cruise speed is similar or could be a little faster, but the real improvement is awesome climb rate and about 15% better fuel economy.

 

Wasn't game to ask the conversion price, but the customer was quite happy.

 

Jabbarax.jpg.2d8bb3991e4da39ca80e00ef141b2544.jpg

 

 

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The more the merrier, but if Jabiru with its resources, people and history cant get it right in this amount of time what chance does bex have on the balance of probabilites.

 

Only way a new manufacturer will come in is with some serious cash to burn on development and testing prior to selling one unit, rather than trying to sell prior to development and testing.

 

Iron all the major creases and problems out before achieing any scale or vloumes of both revenu and problems.

 

 

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In basic marketing circles, there is a matrix of market demand with four segments rainging from cash cow with high volume and margins , mass market down to hobby which has low margins and volume... Most new aircraft engines firmly fit into hobby category with low margins and volumes. rotax might have migrated to low volumes and high margins but any effort froma new manufacturer will take years or decades in aviation to achieve enough confidence to do so.

 

This is one reason aviation has so few new successful entrants, so few new lasting names and so little growth....the odds are firmly stacked against any aviation engine or airframe manufacturer unless they can achieve either high margins or volumes or both...and in aviation volumes are limited...so margins become super critical

 

New entrants may come in, but before they can overcome huge doubts in regards to durabilty and safety they will need to prove themeselves to the market, not just make claims and list features....

 

Lists of features do not sell, customer benefits do...and benefits require social proof , a track record and customer testimonials to actually sell. the more expensive the product, the more proof, history and testimonials required to achieve sales. .......

 

Bex or any new entrant needs to have deep enough pockets not only to design the thing , but also to establish its credibility at thier own expense, not at the risk of customers....

 

The biggest thing Bex could do is reverse the risk, so that he carries it and accellerate the process of testing, refferrals and social proof. Ie, supply the engines to people who will pike huge hours on the engine and become raving fans of its oerformance and reliability

 

 

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Looks like a nice conversion, beautifully done.

 

The cost of conversion is a pretty big factor though.

 

I do have issues with info that 100hp can be faster and maintain climb performance without IFA prop especially with 600kg.

 

You cant have both, the actual setting will be a compromise and performance at this setting is whats important.

 

No other 912 LSA can get near this Ive seen, most top out around 100kts which is well short of J230 normal performance.

 

Now moved to experimental, you could fit Adjustable 3 blade prop to original engine and get some better performance too.

 

 

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