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HelicopterBeginners Corner › O.S. Hyper 50 or Y.S. 50
08-08-2007 08:49 AM  10 years agoPost 1
pat_soccer_89

rrNovice

Prescott Arizona -​United States

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I plan to fly a trex 600 nitro series and im in Prescott, Arizona at an elevation of 5300 i was wondering what engine will perform better. Either the O.S. Hyper 50 or the Y.S. 50 engine at an elevation of 5300 feet

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08-08-2007 03:42 PM  10 years agoPost 2
oldboldpilot

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Southern California

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pat_soccer_89,

You will lose about 15% of sea-level power flying at that elevation (plus a bit more if it's hotter than "standard," which it probably is in the summer months). By all means go maximum nitro..

The OS is a great engine. The YS will make a bit more power, and, if it's like its big brother, is smooth and easy to set up.

Helis are Man's Defiance of the Laws of Nature - OCHC

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08-08-2007 04:23 PM  10 years agoPost 3
BrentC

rrApprentice

Utah, USA

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pat_soccer_89,
You can't go wrong with either engine. If you can get Y.S. 50 that may be the way to go. My friend finally found one for me and I can't wait to try it out. I fly @ 4300' in 100 degree temps, like oldboldpilot says you loose 15% or more. You need to run 30% fuel and a good tuned pipe. I have a Hatori Jason Krause Special pipe on my OS 50 Hyper and I hear that the YS likes the MP 5 pipe. Both the OS and YS like either an OS #8 glow plug or Enya #3. I run the Enya #3 and love them. I have seen the 600N do some amazing things in the right hands at 4300'. You will love it
BrentC

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08-08-2007 04:39 PM  10 years agoPost 4
RonHill

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FLL, FL

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Both are good engines....

Which produces more power is up for debate. Most agree the YS runs smoother.

But YS products are hard to get in the states. In fact the YS 50 is not in production right now. I had a YS years ago and I needed some parts; I ended up needing to buy a whole new engine since I could not get the parts.

That being said, I get an OS since they are everywhere.

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08-08-2007 04:40 PM  10 years agoPost 5
RCHeliJim

rrElite Veteran

Orem, UT USA

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In fact the YS 50 is not in production right now.
How did Heliproz get a new batch of them 5 days ago??

Both are great motors - I like the YS more because the pressurized system keeps a consistent mixture from top of the tank to the bottom - you dont lean out at the bottom of the tank.
It is also very quiet and smooth running. But, I still run a Hyper in one of my helis and it runs great too. Parts may be an issue, but I have so rarely needed any engine part other than some bearings over the years that its not a concern for me (but I like to run a little rich on my motors, which keeps them healthy for a long time at the sacrifice of a little top end power).



Go Fly, Have Fun!!
-Team Quick UK

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08-08-2007 05:40 PM  10 years agoPost 6
MJWS

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Airdrie, AB - Canada

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They've been somewhere around a year in between production runs. Stock is always an issue with the YS's. It's doubtful that will change any time soon.

Heliproz had them for ~2 business days. Poof. Gone. Don't know how many they moved but it could easily have been double if they had been available. I've seen the guys that aren't shy about going direct to Asia come up with them pretty easily.

Hope it's as good as they say.

Mike

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08-08-2007 10:18 PM  10 years agoPost 7
xxl

rrApprentice

The planet Earth

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Flowen a hyper 50 flies great plenty of power nothing bad about os engines. All my stuff has os in it. Sorry cant comment on ys never tried it.

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08-10-2007 02:35 AM  10 years agoPost 8
captrlp

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Spanish Fork, Utah -​USA

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Not to digress this thread, Canada has the YS50 for a fairly reasonable price.
Heliproz cleared out in two hours. Everything they received went to fill backorders. They have no guarantees for the rest of the year.

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08-10-2007 02:52 AM  10 years agoPost 9
MJWS

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Airdrie, AB - Canada

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Where are you spotting the YS in Canada?

Mike

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08-10-2007 05:55 AM  10 years agoPost 10
pgrbff

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Piemonte, Italy

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http://www.probuild-uk.co.uk/

Proficient at turning cash and credit into smoke and noise!

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