onetrack

The SDS EFI is anything but simple. Do you really want this level of complexity on an RA aircraft? - let alone the cost.

http://www.sdsefi.com/jabiru.htm

......a major power increase over standard Mogas. However, it has recently been found (and of great concern to aviators) that there's a major disadvantage with utilising the Turbine BeetleJuice - as once the aircraft (avref) is fuelled with BeetleJuice, the aircraft develops a tendency to burrow into lawns (avref - "lawndart"), which has led to some of the more concerned aviators refusing to use the new product being widely advertised and promoted by TurbineBeetle Inc. 

"Yes," said the CEO of TurbineBeetle, "We understand there have been some complaints about our new product, but the complaints are not backed with hard evidence ('besides half-buried aircraft wreckage', he added) - and besides, the users have to consider the environmental benefits of using our new BeetleJuice product. No oils were drilled to produce our BeetleJuice fuel, and the exhaust emissions contain no nitrous oxides, and very low levels of other pollutants. In fact, the pollutant levels are so low, it's...........

.....processor of Tasmanian Walnuts. But it was the Beetle Nuts that were his biggest seller (not to be confused with Betel Nuts, the fruit of the Areca palm, and the chewing of which is a popular pastime in some far-off countries).

The Tasmanian Beetle Nut was actually processed from Tasmanian Cockchafer Beetles, and the nuts flavour was an immediate hit with nearly every Tasmanian, who had all without fail, managed to accidentally ingest at least half a dozen Cockchafer Beetles in their lifetime - thus giving them a foretaste of bulls Beetle Nut product. The Beetle Nut hadn't made it to the mainland, but that was soon to be......

.....he banked in his getaway move, the pilot of the Wirraway fired, and a lucky shot took out of the Thrusters wing struts, and the wing started to flap like a bird. Bull wasn't concerned, though, he'd flown with worse damage than a missing wing strut - and besides, the Wirraway was now disappearing behind him as the Rotax pulled 6000RPM, way past the redline, and the ASI was bouncing off...........

The Missus' 2011 Camry Atara has proximity warning beepers for reversing, and I can tell you they are bloody effective and loud! They also work at the sides of the car, at the rear.

But rain can bugger them up, I get the impression trickles of water off the car, set them off. But they work on even little bushy plants at the rear of the car. A reversing camera with a red line in it, also assists.

Here are recent threads, there are numerous older threads. Fuel type to use in RA aircraft, and access to fuel supplies for refuelling light aircraft, brings out the biggest variation of opinions and experiences, as you'll find anywhere.

https://www.recreationalflying.com/topic/30521-mogas-or-avgas-remote-area-refueling-options/

https://www.recreationalflying.com/topic/27017-airfields-with-mogas/

https://www.recreationalflying.com/topic/37894-what-is-the-best-fuel-mogas-for-your-engine/

......the Governors Sports bar, far too often for his own good. However, when other patrons of the bar spotted the Quokka trademark symbol, they all clamoured for further information as to where they could acquire the product.

OT had to constantly warn them that there was only one OT-trademarked Quokka product, and there were several shady Eastern-States based operators, who would sell them Cat fur and Rabbit fur products disguised as Quokka fur, and carrying a fake OT Products trademark symbol.

These people were the bane of the industry, and steps were being taken to expose them and name-and-shame them - however, it was difficult work as these dodgy operators were fly-by-nighters, moved operating addresses frequently, operated under aliases such as "Jedi" and "Turbo", thus leading innocent people to think these operators had experience in the named areas, which was wholly untrue, and which deception was purposely designed to.......

......the Rabbit Undies give a bit of a jumpy feeling, whenever the wearer sights dogs or foxes - or even large pussycats. It's the Quokka products that are most in demand, however - particularly as they give a warm feeling when worn, and make everyone smile when the wearer appears with the (trademarked OT Quokka) symbol on the........

BONSAI??  I HAZ NEEDS OF ENGLISH LESSONS!!  

......little old ladies across the street, when the traffic is extremely heavy. However, those good works pale in comparison to the good deeds that Cappy does (when he's not posting naughty stuff on the NES) - which good deeds apply right across that downtrodden and financially-challenged section of society - those poverty-stricken people who build kit planes in their garages, and who even manage to get airborne on an occasional basis, after spending some time begging outside shopping centres, holding up signs, "aircraft to support, please help", and who are usually mistreated and looked down on by.....

(NES'ers will note that OT retired from occasional contributions to the NES for a lengthy period, to allow those thousands of forum members to post multiple, scintillating paragraphs to the NES, thus alleviating the terrible boredom suffered by Planey, as he was obliged to stop reading the NES, thanks to the domination of the NES by only 2 or 3 dominating, self-obsessed, forum members - who obviously enjoyed the limelight, and who really contribute nothing of value to the NES.

However, now that thousands of forum members have started contributing to the NES again, it greatly relieves OT to know that, once again, the NES is back on track, and Planey must be looking forward daily to each new exciting addition to the story.....)

Quote

although no one knows how the Egyptians built the Giza pyramid.

 

It's obvious, isn't it? The Egyptians used an exotic IC engine design, of which the knowledge, plans and blueprints have long been lost. However, I'd like to advise I've discovered this hidden tomb with all the blueprints of how these engines were designed and built, and how the pyramids were constructed, using them. I just need some investors to help me get this information out of Egypt, without the Egyptian Ministry of Antiquities acquiring it first. Any investors are guaranteed to make the same huge level of profits from this long-lost Egyptian knowledge, as the seed investors in Astro Aerospace will, investing in the Omega 1 engine product development ...... 

For what it's worth, I never cease to be amazed at the capabilities and productivity of a few thousand highly dedicated and hard-working people, utilising simple devices built on basic physics principles - levers, counterbalance devices, water power, gravity, natural chemical reactions between common reactive chemicals in the soil. The Coral Castle was built by one man, and there are many claims of secret powers he used - but the bottom line was that crafty gent simply used the same building principles available to the Egyptians.

That report is quite deficient as regards weather conditions and other important contributing factors. Was it an instructor and student on board, or a qualified pilot with a passenger?

"They lost control" - why? There's no reference to wind direction, gusts, temperature, wind shear, and sudden wind direction change.

Why did they land long? - was it because the PIC was a student, and was still trying to get a grasp on landing techniques?

It's a pretty poor report, and doesn't help anyone else trying to learn something from the adverse event.

Exotic and revolutionary new engine designs tend to fail in about 4 areas generally - satisfactory heat transfer, emissions, fuel economy, and satisfactory, long-life, combustion and lubrication sealing arrangements.

I see little hard information as regards emissions or fuel economy - and the heat transfer and sealing problems will only arise after extensive testing of working prototypes. 

I see huge problems with internal distortion in the engine causing major alignment problems. The rotor speeds involved are astronomical - the pressure on the rotors, along with the massive combustion heat levels, will cause major problems.

Ralph Sarich thought he had a winner, too, making an engine along the same thinking as the vane-type hydraulic pump (which is where he got his "lightbulb" moment).

But despite the huge research and testing and engineering input of Sarichs team, the GM engineering division, and Fords engineering division, the Sarich Orbital engine just couldn't cut it - because of major sealing problems, major heat transfer problems, substantial emission problems, poor fuel economy - and complex mass-production manufacturing problems.

I wish these proponents of the Omega 1 engine well, but there's no free lunch when it comes to the physics of getting huge power levels from low mass engines - nearly everything that can be tried in IC engines has been tried, and the vast majority of promising new designs are always found wanting, when it comes to actually producing a production-level unit that meets all the promised claims.

It was probably an excellent place for an airport when it was first established - with lots of open areas around it.

The problems come from "Urban Encroachment" as the developers explain why they need to build on all that vacant land, right up to the airport perimeter.

My stepdaughters partner is a train controller and you would hardly believe the crap that train drivers have to put up with - nearly all of it recorded on train cameras, or station cameras.

Near-misses are a dime a dozen - people looking at phones whilst crossing tracks, stepping out from behind one train into the path of one going the other way, or jumping pedestrian barriers, trying to beat the train.

Many drivers have had 2 or 3 suicides happen to them, and some drivers have never been able to work again after particularly bad accidents where someone splattered themselves over the front of the train.

Suicides by train are more common than you think, reporting of them is muted, to prevent copycats. The worst ones are the drunken, switched-off idiots who walk into trains.

He said the PTA (Perth) had one late last year. A bloke walked into a suburban passenger train at 10:00PM on the outskirts of Armadale, and the train driver heard the thump and stopped the train, and reported a collision with a pedestrian.

Then the emergency services and police turned up, and none of them, including the train driver, could find the victim. Everyone but the driver, started to doubt if the train had actually hit anyone.

It turned out he'd only been moderately injured, and had dragged himself home without asking for help, or telling anyone. Then someone either spoke to him next day, or spotted him, and told him to get medical help.

So he turns up at the hospital late the next morning - but meantime the emergency services and police have been scouring the countryside far and wide for him, wasting valuable resources.

Of course, he didn't want to notify anyone, because he was drunk, on railway property when not authorised, and he thought he'd get a bill for stopping the train.

Train driver - "I ain't stoppin' for nuthin' - we is already 6 mins late!"

I can recall a bloke in an ultralight at Beverley, W.A. (late 70's or early 80's), who took off with his fuel tap turned off.

He got to an altitude of about 60 or 80 feet before the donk stopped completely, and the resultant rapid return to terra firma was just enough to ensure a fatal result.

And the most ironic part of the whole story? - he was a former aircraft crash investigator with BASI!

It's amazing how these idiots survive to live another day. But I found one worse - reading this report (below) makes you wonder about the screening of applicants for pilot training in the U.S.

http://www.kathrynsreport.com/2021/06/fuel-exhaustion-piper-pa-22-160-n9227d.html

The blokes story is documented in numerous different articles from various sources - plus there's the FAA and NTSB reports. It's all true, unfortunately.

https://fearoflanding.com/accidents/accident-reports/the-sad-story-of-the-seawind-3000-n8uu/

https://data.ntsb.gov/Docket?ProjectID=103484

https://aviation-safety.net/wikibase/265150

Kevin Hyam, an engineering shop owner in the U.K. is providing parts support for Camit engines. It appears he only runs a small operation, and is no doubt financially constrained, so don't expect miracles.

https://camitaeroenginesuk.com/about

https://jabcamit.groups.io/g/main/topic/78297314#13058

rnothard - Perhaps these discussions linked to below will assist you ...

https://www.recreationalflying.com/topic/22493-camit-engines-anyone-got-one/

https://jabcamit.groups.io/g/main/topic/reliability_and_camit_vs/62094998

https://jabcamit.groups.io/g/main/topic/camit_3300_engine_failure_at/76729377

The eBay seller in the link below has provided the technical/dimension variations in the EA81 exhaust valves, just scroll down the page.

The Nason group won't say where their products are made, they only say, "Nason has only partnered with manufacturers who have certifications showing they meet an international standard of quality management and assurance. This ensures that every Nason engine part they supply will be equal to, or better than, O.E.M. quality, every time."  This statement, of course, means that China is most likely their main supplier.

https://www.ebay.com.au/itm/303587771878

Nev, Mahle still have 3 manufacturing plants in the U.S. that manufacture pistons, rings and bearings (under the Clevite brand) - but yes, it appears Mahle China is the division manufacturing valves, inserts, guides and camshafts.

https://www.mahle-aftermarket.com/na/en/press/mahle-aftermarket-news/mahle---the-global-leader-in-forward-thinking-concepts-products-and-systems-25600

https://www.cn.mahle.com/en/products-and-services/passenger-cars/valve-train/

I'm sure if you gave me half a dozen aircraft to wreck, I could probably survive landing gear up, deadstick landing on water, landing at 3:30AM with no lighting - but there wouldn't be any useable aircraft left when I'd finished! - that's if I had also possessed the sheer luck this bloke had, too!

I note how the investigators remarked the reason the aircraft sank when it was supposed to float, was most likely due to hull damage cause by impact with the ground during previous botched landings! But you wouldn't check for hull damage after a ground strike, would you? 

This bloke suffers from the problem that has killed many pilots - an inability to make sound, reasoned, rational, well-thought out, logical decisions, when major decisions have to be made, involving flight and its associated calculated risks.

Unfortunately, he's not alone with his scatty, unfocussed and irrational thought patterns, there's a lot of it about.

What kind of imbecile spends $110K on an aircraft he's never inspected, simply relying on the word of the seller - then doesn't do a comprehensive check over the whole aircraft before taking to the air, relying on finding the faults whilst airborne - and then, on top of all that - doesn't even bother to insure it? "Jackass" doesn't even begin to describe his lack of functioning brain cells. He ought to run for the Presidency.