XYZ 50CC engine did you try...?

[Al Lewis]

I always install a vent line to the metering plate on all of my planes. That way I can be sure that any turbulence in the cowl won't disrupt my fuel flow. I simply install a glow muffler 8-32 pressure nipple on the plate and run a piece of fuel line from it to the fuse. Have to make sure and get the back side of the plate flush and smooth after installing the nipple so it can't contact the diaphragm.

[Al Lewis]

I installed the fuel tank in the stock location, after installing a gas proof stopper, with a two-line setup, one to the carb with a tee for filling and the other a vent line that loops twice, above the tank, and then exits out the bottom of the fuse. You can use any sort of manual choke on the carb. I also used an RCats switch between the manual switch and the EI so I could shut the engine off through the Tx. Make sure that you open your cowl up enough to get good air flow over the barrel of the engine for cooling. For a prop I choose a Xoar 20X8. Gives me good power. Hope this answers your questions. If you have any more feel free to PM me again.

[Test005]

Many many thanks Al. I truly appreciate it very much and the detailed pictures are perfect for learning!

[Test005]

Can anyone tell me the power diffrence between this XYZ50 and the Zenoah45?
I have the Zen45 now doing 6600-6800 on 21x8 Menz and I wonder if the XYZ50 will spin it lot's more rpm?

[kenhiraihnl]

i mounted my xyz50 in a great planes giant super sportster...ran it for the first time today...20x10apc, 2s lipo regulated to 6v for ignition...started on the 3rd flip...wot briefly (6050 rpm)...haven't touched the needles yet...the ss flew very nicely on an os1.60fx w/ 17x10apc...the xyz50 is ony 4oz heaver than the os...should be an interesting maiden this sunday...ken

[rc3dr]

	Quote: Originally Posted by kenhiraihnl
	i mounted my xyz50 in a great planes giant super sportster...ran it for the first time today...20x10apc, 2s lipo regulated to 6v for ignition...started on the 3rd flip...wot briefly (6050 rpm)...haven't touched the needles yet...the ss flew very nicely on an os1.60fx w/ 17x10apc...the xyz50 is ony 4oz heaver than the os...should be an interesting maiden this sunday...ken

Ken,
Please let me know how it flew.
I have a few guys looking to pop our XYZ-50 in their Super Sportster.

BTW, You should start to see close to 6600rpm with the 20x10apc after
a few tanks/flights.

[BAS]

I was thinking of putting the xyz 50 in the Extreme Flight yak 74 In. Just concerned about wing loading on this application. I would appreciate some imput .

[JPal101]

A friend of mine had the same Yak with a Brillelli 36 (not sure of the spelling) and it flew fine, 3D or anything else. Landings were fine

[Al Lewis]

	Quote: Originally Posted by BAS
	I was thinking of putting the xyz 50 in the Extreme Flight yak 74 In. Just concerned about wing loading on this application. I would appreciate some imput .

There is a guy on RCU flying one of these with the XYZ 50cc in it and has a video of it.

[BAS]

Ok thanks Al i will check it out .

[kenhiraihnl]

	Quote: Originally Posted by rc3dr
	Ken, Please let me know how it flew. I have a few guys looking to pop our XYZ-50 in their Super Sportster. BTW, You should start to see close to 6600rpm with the 20x10apc after a few tanks/flights.

the maiden of my xyz50-giant super sportster was less than spectacular...mostly my fault...i tweaked the throttle end points and throttle cut, but didn't check rpm...takeoff and flight was sluggish, and my spotter asked me if i was at full throttle...i did a few slow rolls and loops, but they definitely weren't as eye-catching as my os1.60fx setup...as i prepared for landing, my throttle control got iffy...i'm using a hitec blue servo arm for the walbro...i forgot to loktite the small nut holding the ball onto the servo arm...landing was uneventful...when i got home and fixed the throttle arm, i discovered that i was flying with 5700 rpm wot...it's now back to 6000...i'm sure it will be fine when and if i get to 6600...i've run less than one tankful through the engine...i'll report back in a week or so...it's an easy starting, slow idling, smooth accelerating, fuel-efficient, and good-looking engine...can't beat the price of gas vs. nitro...ken

[kenhiraihnl]

UPDATE: i've been running the engine with an 18x8 laminated xoar...just a little 4-cycling at midrange, which i'm working-out with the low needle...rpm increasing with more run time...solid 7800 rpm so far...i'll test fly with this setup before trying the 20x10 again (looks like it might be ready for 6,600 on the 20x10)...about a gallon of 32:1 run through the engine so far...planning to switch to 40:1 mc-1 for the next gallon...i'm very happy with this engine...i wasn't expecting da or 3w performance...it has the weight of a g26, and seems to have power somewhere between a g38 that used to power my ultra hots and a fox3.2 i had on an ohio giles202...good price, and very nice bling (in case i butcher the cowl, trying to make it fit)...lol...btw, the stock 3.25 ss spinner should fit with no problem, unless you're using the apc20x10 wide blade...ken