XYZ 50CC engine did you try...?

[JPal101]

rcdr

Thank you for the reply but, I am more concerned about the dependability in the long run and the materials the engine is made of off. I guess we dont know how it will perform in the long run since it was just introduced to the market.

[BarracudaHockey]

Having seen these in action (I fly at Rons field), I'm seriously considering a 120 warbird project with the 26cc engine. Well I decided on it, I'm seriously considering how to get it past my wife.

I'm no expert but for the money these seem to be nice little engines.

[lannybob]

heres what im going to do when i get ready. remember tax rebate checks are on the way. i'm going to purchase one and if it dosent run well, then i'll just send it back for a full refund. but on the other hand if it runs flawless, huh............................. XYZ will dominate the market on those first timers getting into gas engines and wanting to start at 50cc. the word will spread and pretty soon they're be backordered for years to come. the engines are really cheap in price and in todays economy thats just perfect. xyz just might be the answer for a budget minded hobbists wanting to try gas.

[decoy26]

Got to see the 26CC today, I have to say I am impressed. Has me looking for a 1/4 scale cub! Nice motor..

[Al Lewis]

	Quote: Originally Posted by lannybob
	heres what im going to do when i get ready. remember tax rebate checks are on the way. i'm going to purchase one and if it dosent run well, then i'll just send it back for a full refund. but on the other hand if it runs flawless, huh............................. XYZ will dominate the market on those first timers getting into gas engines and wanting to start at 50cc. the word will spread and pretty soon they're be backordered for years to come. the engines are really cheap in price and in todays economy thats just perfect. xyz just might be the answer for a budget minded hobbists wanting to try gas.

These are Warbird engines. That means they swing a big prop but don't have the all out performance you need for a 3D plane. Put your money into a DL-50 from www.DLUSA.NET You'll get exactly what you want.

[rc3dr]

YouTube - XYZ-50cc 1st Start

YouTube - XYZ-50cc in a Hanger9 Extra 260

[3Dguy]

Hi, Ron (rc3dr). Do you have any RPM and prop figures? I know this isn't an all-out 3D powerhouse, but it seems to motivate that 260 pretty well on the uplines from what I can see in the vid. It's a very tempting engine.

[harrys]

The thing i am concerned of how long will this engine last how much reliable it is whats the metallurgy the engine has got in there i hope everyone will agree with me on this point any brand new engine will show power as long as it is new but you see as it gets older you see the reality true engines last real real long i have many webra & Enya engines that still out perform the new motors what you pay is what you get I am not trying to say XYZ engines are bad but use this engine for about year & fly the hell out of it and then see how long dose this engine last i dont think it will be able to handle 3D extreme flying...

[XJet]

The longevity issue is an important one, although it could be argued that an engine which costs half as much will still be better value if it only lasts 2/3 as long.

One thing that I notice with many of the "low cost" gas engines coming on the market right now is that they use a significant amount of unsupported crankshaft in front of the front bearing.

Look at the XYZ50 for example. It has a rather long prop-driver/extension-shaft that hangs out the front of the motor.

Compare that to the DA50/DL50 design where there's a bearing right behind the prop driver.

Work out the forces at work here, especially in 3D where there are some very rapid changes in the angle of the prop-disk which will induce severe gyroscopic loadings on those bearings.

I can see why DA didn't just opt for some cheap chainsaw/industrial engine castings when they made the DA50 and why DL took the same route -- it's just a whole lot more robust and sensible for 3D flying to have two bearings on the front section of the crankshaft.

Now I'm not saying that the XYZ50 isn't going to represent great value for money but on this design-choice alone, I'd say it's more suited to warbirds and other aircraft where the crank bearings won't be subjected to such radical radial forces.

[BarracudaHockey]

Well I picked up my 26cc today, now I just have to find the warbird.

Something IMAA legal that lets me fly at IMAA or Warbird fly ins.

I'm stoked (that might be because the Flyers eliminated montreal last night though )
Thanks for the good deal Ron

[Al Lewis]

Seems to haul that 27% around about the same as my BCMA 43cc does mine. I'd be real interested to know what prop was on that plane. Engine looks pretty good though.

[3Dguy]

	Quote: Originally Posted by XJet
	The longevity issue is an important one, although it could be argued that an engine which costs half as much will still be better value if it only lasts 2/3 as long. One thing that I notice with many of the "low cost" gas engines coming on the market right now is that they use a significant amount of unsupported crankshaft in front of the front bearing. Look at the XYZ50 for example. It has a rather long prop-driver/extension-shaft that hangs out the front of the motor. Compare that to the DA50/DL50 design where there's a bearing right behind the prop driver. Work out the forces at work here, especially in 3D where there are some very rapid changes in the angle of the prop-disk which will induce severe gyroscopic loadings on those bearings. I can see why DA didn't just opt for some cheap chainsaw/industrial engine castings when they made the DA50 and why DL took the same route -- it's just a whole lot more robust and sensible for 3D flying to have two bearings on the front section of the crankshaft. Now I'm not saying that the XYZ50 isn't going to represent great value for money but on this design-choice alone, I'd say it's more suited to warbirds and other aircraft where the crank bearings won't be subjected to such radical radial forces.

That's a good point.