Kyle Communications

Looks like the russians are trying their hand at copying the Rotax now NAIS‑2026: UDC Unveils M105 Piston Engine for Light Aircraft – RuAviation RUAVIA.SU Against this backdrop, United Engine Corporation (UDC) unveiled the new M105 piston engine at NAIS‑2026. The public demonstration signals the transition from

I gather you didnt get the gist of my comment. I didnt want to spell it out and start a flame war of woke BS or animal right activists. Here we would have used a defrosted chook I would think...but in Europe you have to be seen to be kosher You cant say anything directly anymore because someone will be offended and thats almost a capital crime now days

no animals were hurt in the filming of this episode :)..they are in Europe remember

Eprop have been working on 2 blade props for not only the jab engines but much larger usual aircraft engines. This has been a long process but they are at the pointy end now doing certification testing. They havent released any yet but they are not far away. The 3 blade props are designed for the Rotax engines mainly engines with a gearbox. Direct drive carbon based 2 blade props have always been a slippery issue. Mayny have tried but most have failed in one way or another. Just look at the problem with the Hartzel prop issue on the Titan engines in the USA. Cato have come up with a new development but yet has to prove itself for anything long term. I doubt though they have done this sort of testing.

Most airframes are very safe, the big factor is the donk you use. I could start a flame war by just mentioning one engine name

Trevor Mills was the pilot involved in the accident at Old Station late last year. He also was a good friend. He had a RV8 as well with a suburu engine init initally and I flew in it with him but later he did the turbo conversion. His engine went bang on takeoff and luckily he survived but he walked 2km back to Old Station with 80% burns and broken ribs and back injuries because the fuselage had twisted and he couldnt get the canopy opened quickly enough. He is still in the RBWH and will be for a while yet. He has just had a massive amount of skin grafts. I love building my own aircraft but when it comes to the engines I prefer to stay with tried and tested engines. A lot of auto conversions may be ok but there seems to be far more engine outs in aircraft that have auto engine mods done in them

The pilots name has been released. It was Greg Ackman, He was the owner of Mobile One a antenna manufacturer. I bought a lot of antennas from him over the years and use a aviation one here and at the farm. He was here about 18 months ago dropping off a couple of antennas. I dealt with him since the early 1990's. He was a good guy..didnt take crap from anyone either. We got on very well. Vale Greg Ackman

Nev I have made over 60 sets and they have been sent all over the world. I cant believe things that I make for me end up being so popular I sent 8 sets to Iceland !!!! even my post office had never sent anything to Iceland 🙂

Nothing of course but you know Skippy

Anything that rotates needs to be balanced especially in a high rpm engine. The crank is rotated at speed held in journals and the machine tells you what position and how much to either take off or add on in those spots. Its pretty simple really when you have invested the time and money into the equipment to do the job properly. You balance your car tyres dont you? well why doesnt Rotax balance their flywheels. We have tried more than 10 flywheels and all are not even close to being balanced. The flywheel is just one part of a assembly that when all added together hopefully has a vibrational level that doesnt cause extra wear or pressure on the rest of the components

The engines have been "blueprinted" pistons all weighed and made the same crankshaft balanced conrods weighed and made the same. The whole assembly balanced on a running balancer. I can assure you Turbo I know what I am talking about. Including balancing model jet turbines with my own 100k Schenck balancer I was balancing turbines that ran at 250,000 rpm. I do know just a little bit about balancing...oh and also I used to fix engine balancers for motor builders too.

Agree to disagree You do you and I will do me

2000 hours of operation is not a lot of hours at all Put it into perspective. you drive your car an hour to work and a hour to home so 2 hrs a day 5 days a week. so thats 10 hrs a week. So thats 520hrs a year plus all other private driving which could possibly be that again for holidays and visits and days to the beach etc etc so say 1000 hours a year. According to rotax you need to renegine your car every 2 years A car engine does not do the rpm or have anywhere near the stress on it of course but numbers are numbers. I know of many rotax 912 that are 5000 hrs and have not been overhauled and that can be very true but I also know of quite a few that have gone bang for various reason like camshafts and cam bearings and case fretting etc etc in less than 2000 hours as well Rotax are not perfect but my opinion is they shopuld be much better for the money we pay for them

Do what you want to do Skippy and stop having a whinge about it..you either do it or stop creating internet slop. Arguing about it is a waste of time. Unless of course you want to be king of the opinion brigade. People will do what they want. You have no intention of doing it so why even comment

I can tell you from fact and engine rebuilds that the flywheels are no where near balanced. That was on 2 of my engines and since then we have looked at a lot others and none are balanced. I have the access to the equipment and the expertise to have this done. When you pay 40k or a std 912 and 70k for a 915 and 90k for a 916 then I would be expecting to have at least the flywheel balanced But as I said Rotax base everything on 2000 hr operation...then buy a new one