Hi Dave,

I know it's not YS's standard to post the HP figures for the engines but is there any way I get can those figures for the current line of engines? (All 8 of them)

I am going to stick with YS in all future and some of my current planes and I need to be able to compare HP figures with the recommended engines for the planes so I can properly size the engine to the airframe.

Thanks

We've been through this countless times. I can claim virtually any numbers I like and since few actually have any way to check, I'm likely not to be found in error, just like all the mfg.'s.

Here they are again(and they are very close to being REAL!)

ALL DEPEND ON NITRO CONTENT OF THE FUEL AND LOCAL CONDITIONS!

YS 63- 1.6
YS 110-2.1
YS 140 Sport-2.7
YS 140DZ-3.0

Dave,

I did do a search before asking and all I could come up with was numbers for most of the engines that are no longer made like the 91AC, 120FZ, etc...

I do understand that nitro and local conditions can mess with the numbers as well as any number can be stated, but I do trust YS as I have found that through reading this forum and asking my own questions that your support and YS's in general is fantastic.

I was just putting figures together for comparison as I want to start using YS engines exclusively, replacing my other 4-strokes, most of my current planes and in my new ones and needed a baseline to start at.

Didn't mean to beat an old horse. Sorry for the frustration. []

Didn't mean to make you feel bad, sorry. I know how hard it is to find old info on the threads because it gets mixed in with other titles and seems to be part of different subjects.

In any case, enjoy the HP you get with YS. No other brand even comes close!

Good Flying, Dave

I am building a Sig Four Star 120. I am new to four strokes and have been looking for the best option.

I have been looking at The YS120 and Saito 150 or 180.

Can you help educate me as to why i hear such good things about YS engines?

Thanks

They make more HP than any of the others!

Go for the YS 110 in your application.