YURIANANA .46

Drew

Best engine out there no doubts!

i cant speak for all engine types, i have a few small OS (a .10, .25 and a .40) all run really nice BUT i also havea magnum that i love to death... however its a 1.10 so i cant speak forthe smaller magnum engines. but i really like them, in my experiance they seem to have better thrust to weight than other engines ive playd with. and having hex bolts instead of philupsmakes it worlds easier to tak apart if you need to.

i also have a norvell .061, not thatsrelivent, but i love that engine too :-D

OS is a more reliable brand, but i would still take my magnum overit iffor no other reason then there built better and cheaper, my mag 1.1 cost what my os .40 cost :-s go figure

I think he was referring to myianna. How in hell he found out about sombody's ianna I just can't imagine.

No i am talking about one of the best engines in the world! THE YURIANANA .46!!

[link=http://hardy.dropbear.id.au/gumpf/gis/lcoopers_hand_made_australian_beer.jpg]CLICK HERE![/link]

Drew

tell me if you want to purchase i make them my self!

YURIANANA .46 !!!

Drew

having owned many brands & sizes I can say I have found no real difference in reliability between OS and TT engines. for the price TT is hard to beat.the OLD series Magnum was nothing more than a copy of the OS FSR series & ran very very well. OS priced themselves out of many peoples pockets years ago. thats not to say they are not great engines , just their ARE alternatives depending on what you want. many of these are good copies of other designs .repairs to OS will be costly for beginners & there are other motors that will serve VERY admirally for the first few planes. the old K&B FRONT ROTOR .40 was a very much used design & for sport flying served well. carburators make or break even a good design.

Kindly commment about Evolution's .46 2C engine and JR XF421EX radio 5 channel.

Thanks

I can't comment on the JR radio, but I can with the EVO 46.

It is a user friendly, high-power sport engine. Very similar in power to the TT 46 Pro & just a tiny bit less than the OS 46 AX. It is not quite as slick as either the TT or the OS, having (perhaps) slightly more variable quality. There have been reports of some troublesome examples, but I have never seen one myself & it certainly has a much better track record than the Tower 46 or GMS 47.

If the price is right, it would be a reasonable choice. If you have to pay as much (or close) as a TT Pro or OS AX, get the TT or OS.

Since i'm alorne in here i'll write bigger
I would take a (british) Irvine over an OS any time.. however nowadays Irvines are machined by OS ... I guess they will be even better and at a better price....

I'll take the Chevy.

In my active fleet I have:

1 Webra
1 Rossi
1 Jett
1 ST
1 Magnum
3 Saito
6 OS
4 TT

Once you learn how to tune them there is usually no difference in which one runs better or more reliably than the other. I buy which ever engine I think will do the job at the price I want to spend. If an instructor only knows how to deal with a certain brand, then might as well get that brand.

Every once in a while a lemon will come along. I put in 10 years at a hobby shop and saw quite a bit. I had an engine with a head gasket that wouldn't seal, an engine where the pressure nipple on the muffler was not completely drilled, one where the sleeve was installed rotated, multiple with metal filings left in the crank, a couple of engines that had an overly rich midrange. But getting one is rare.

If I were to buy an engine for that plane, it would be the TT Pro 46. But that is only my opinion.

I do own a JR 421. It is a good radio and I use it mostly for training. It is great for basic planes that use no more than 5 channels. It also has basic mixing. If you had the money I would get the 6102 over the 421. It has more features and digital trims. I bought the 421 a while back and basically outgrew it. I now have an 8103, two 652's, a 622, and a 421. I'm going to get the 9303 with the synthesized module in the near future to replace all of those radios except for the 8103

I know that ASP's are made in the same factory as the OS's, but do the ASP's have the reliability and life span of a OS engine? I just want to know because in our region, you can buy more parts for the ASP's.

Tom

They are? I thought most of the OS engines were still made in Japan. I know ASP, Magnum, SC, SY, and one or two other brands I'm always forgetting are made at SanYee, but I had not heard that OS was as well.

According to OS, they are still Japanese (check their website). ASP are made in PRC.

Is this true? While I agree that they are good, Irvines aren't very favourably priced in Canada (when you can find them), so they aren't very popular. I'm not sure about US prices, but they don't seem to be very commonly found there either.

I've only seen a few in the many hobby shops I've been in. I think the prices were comparable to an O.S. of the same size. I haven't seen any at all lately. I wish I had grabbed one when I had the chance.

Yup, in Shenzhen, which is a fairly nice city.

I had an Irving .40 - after 8 hours the rod had to be replaced. After that it ran for around 2000 flights before it just wore out from use. My OS .46AX, after one solid season of flying, is still running the original glow plug. Hasn't missed a beat. Just out of personal preference I've flown mainly OS, but also have TT and ST. But like any engine, beyond initial manufacturer quality, the operator can kill it just as fast than anything. Properly operated and maintained, any good engine should, be it OS, TT, ST, Magnum, Jett, etc. should last several years.

But are the ASP's from the same quality as the OS's are?

No, although they may last just as long.

OS AX 46 awsome lots of power always fires up and holds its tune dial it in and there you go you hardly have to touch the settings

I have many O.S. Engines and I really like them mainly because of their tuning. You don't need to fiddle with them once they're set up.

Having said that, O.S.'s Engineer left and joined Thunder Tiger, so I've been told.

Also, according to our UK distributer, O.S.'s quality control has recently gone out the window, at least for UK imports. The engines we receive here often have some inexcusable quality control errors. For example, several shipments of O.S. 4-strokes arrived on UK shores with the valve timing set up wrong (cam assembled onto crankshaft gear using the wrong timing mark). The O.S. problems are so common here now that even the distributer's telephone receptionist knows the problems by the symptoms....

Several 2-strokes arrived at our LHS (owner is a friend) and were returned on warranty - totally wrecked due to swarf in the cylinder.

It's a real shame because I used to be able to buy O.S. with total confidence. Now I wouldn't touch them with a very long pole until I hear definate word that the quality is back.

I also like Thunder Tiger, Super Custom (decent value and pretty reliable so far - I have a SC .91 2 stroke in my P-47) and RCV (though wouldnt suggest RCV for a trainer).

Wow, that's quite a revelation. I haven't heard of anything like that on this side of the pond (although the die-hard OS folks would be reluctant to admit to those problems). OS is my second favorite brand, although I seldom buy them now, because the price just doesn't fit the market place. If the UK OS shipments are crappy, I wonder why that would not be the case in North America.

jamie_duff, your "revelations" contradict my own experience and I'm sure those of other O.S. owners as well. I think you would be well advised to not believe everything you hear.
"If the UK OS shipments are crappy, I wonder why that would not be the case in North America."
I wonder that myself britbrat; we were the ones that nuked them.

With quotes like that is it any wonder that Americans have a bad reputation in most other countries? Do your country a favour and don't get them all a bad name...

Tactless comments aside, I did say that I do like OS engines. I do not know why we've had a few bad batches. I suspect they're manufactured in batches. Maybe we got a few dodgy ones? I don't know. Frankly, I don't care.

I wouldn't make something like that up. I have enough true stories to tell that are much funnier than my favourite engine brand making mistakes. I don't pretend to speak for the world markets, but I do KNOW that we've had a hefty number of problems with recent engines in the UK. If they sort it out fine. Maybe it's an unfortunate blip on their record. Maybe it's a transition period implementing new quality control systems. Once again, I really couldn't care less.

I do know that a number of shops in the UK are recommending different brands at the moment due to complaints and returns with recent O.S. engines.

If this isn't what some members want to hear then fine, stop reading. I'm not interested in who's habits I change, and I'm not pushing any other brand either. All I'm trying to do is offer some comments on recent experiences with a few (not all) shipments of O.S. to the UK.