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HelicopterEngines Plugs Mufflers Fuel › OS-55 and YS-56 pics
06-07-2009 02:27 PM  8 years agoPost 41
Aaron29

rrProfessor

USA

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We need to move on about the bearing issue.
Can't...

I'm sick of any issue that crops up from trying to squeeze so much power out of a small case. YS cranks cracking, OS bearings failing, etc.

"Moving on" for me might involve switching to electric. If these new engines are a hit and reliable, I'll give one a shot. But I'll probably be nearly the LAST to buy so that I can watch other's experiences.

Your statement sort of sums up the manufacturer view to hobbyists. "Shut up and take the pain." We pay premium for these engines when you compare them to other applications. I demand that our hard earned dollar return enjoyment.

When people complain, it's legit. If you don't have a problem, fine. But concede to the fact that many others may.

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06-08-2009 02:35 AM  8 years agoPost 42
Kevin Dalrymple

rrKey Veteran

Indianapolis

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"Moving on" for me might involve switching to electric.
Sounds like you are "moving on". They have bearing maintence in there motors as well
Your statement sort of sums up the manufacturer view to hobbyists. "Shut up and take the pain." We pay premium for these engines when you compare them to other applications. I demand that our hard earned dollar return enjoyment.
I see your point but:
When people complain, it's legit.
Not always. I go though bearings in my 50 and 90 size engines, but i ask a lot from them. How can you ask a $180 dollar engine to run perfect and last forever when you spin them at 16000 to 17000 RPM and feed the 30% nitro. Not to mention the abuse of flying in a heli.

Drag motors that run on Nitro last one run and then need to be rebuilt. The fact is if they fix the bearing issue i will buy one of the new motors, but if they don't i am not going to stop flying. I will just change bearings. I have done many of these now an it dose not take long. Now i can not do a bearing change at the feild, so i have a back up heli.

My thought when i posted was this complaint has been beaten to death. Not to affend anyone. Yes OS and YS know there problems. So lets see if they make a better product with a new version. I am sorry for everyone who has problems with there motors, but we have talked about this enough and it is time to "move on" from this topic.

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06-08-2009 03:32 AM  8 years agoPost 43
Alpine

rrVeteran

Lexington, Ky

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When are they going to be available in the USA /

Roberto Munoz
IRCHA #344

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06-08-2009 03:47 AM  8 years agoPost 44
Aaron29

rrProfessor

USA

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How can you ask a $180 dollar engine to run perfect and last forever when you spin them at 16000 to 17000 RPM and feed the 30% nitro. Not to mention the abuse of flying in a heli.
That's just the problem. I don't. I run 15%. I run 14450 RPM. And still I get the failures. I never said I expect it to run forever. Not sure where you got that from. But a season might be nice.

You say move on, as though my concerns are irrelevant. All we know about these new engines is we're squeezing even MORE power from the same size mounting. Did they learn lessons from last engines or are we treading recklessly?

We're trying to bring up valid concerns in hopes that someone from perhaps one of these companies will speak or even leak information about the changes these new engines have.
Drag motors that run on Nitro last one run and then need to be rebuilt.
I believe this to be true, but I don't think it applies here. Nascar cars run one race, and I still expect my car to last 100,000 miles.
The fact is if they fix the bearing issue i will buy one of the new motors
As will I. But you can bet there will be a long period of observing others experiences before I do.

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06-08-2009 04:47 AM  8 years agoPost 45
TmMugen

rrKey Veteran

Tiny Little Red Dot aka Singapore

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Release date?

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06-08-2009 11:11 PM  8 years agoPost 46
Pinecone

rrKey Veteran

Maryalnd

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Engine issues are not linear with RPM, more like square or cube function.

I saw a chart at one point that showed engine life versus RPM.

OK, found one: http://www.metricmechanic.com/catalog/engine-life.php

For car engines, but notice a 4 times decrease in engine life for every increase of 1,000 RPM.

One could convert the RPM to a piston speed (what really effects engine life) and compare to model engines with their short strokes.

But the bottom line, more RPM means a LOT less engine life.

As for running 14000 RPM, what gearing and headspeed?

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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06-09-2009 12:29 AM  8 years agoPost 47
Aaron29

rrProfessor

USA

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Pinecone:

8.5/1700

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06-09-2009 12:41 AM  8 years agoPost 48
Kevin Dalrymple

rrKey Veteran

Indianapolis

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Aaron29

Why so low? Is it just for bearing life? Have you tried any other motors?

My complaint is that the topic of bearing life has been done everywhere on this site. Yes the OS and YS know there is a problem. I hope they fix it. But i hate to see every other post be about bearings. Sorry if if your mad. Did not mean to upset you. That is why i said "move on". The point was made. Wheather they change, who knows. I hope they do for everyones enjoyment of this hobby.

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06-09-2009 12:45 AM  8 years agoPost 49
Aaron29

rrProfessor

USA

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I did run it low for extended life. It did't work.

I hear you about moving on. But you have to admit: aren't you at least a LITTLE trepid about these new ones?

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06-09-2009 01:29 AM  8 years agoPost 50
Kevin Dalrymple

rrKey Veteran

Indianapolis

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I hear you about moving on. But you have to admit: are you at least a LITTLE trepid about buying one of these new ones?
Like i said any you have the same veiw point. I won't buy one of these motors unless the bearing issue is fixed. I will not stop flying and if i have to change bearings it might as well be with the motors i all ready own. Yes i want the problem fixed.

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06-12-2009 10:04 PM  8 years agoPost 51
Alpine

rrVeteran

Lexington, Ky

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Is there a Hatori for the YS and the OS out yet ? What would you fit them with ?

Roberto Munoz
IRCHA #344

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06-13-2009 01:54 AM  8 years agoPost 52
cmir2425

rrApprentice

miami, fl usa

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As far as the Ys56sr. Its not available in Japan yet. My source said in 1 to 2 months. That means It will be a bit before they hit the states.

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06-13-2009 03:17 AM  8 years agoPost 53
tchavei

rrProfessor

Portugal

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Yes. I was told by July in Japan, unknown ETA in the rest of the world.

Tony


--------------------
"Perfection and patience usually walk side by side..."

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06-28-2009 04:12 PM  8 years agoPost 54
blade3d

rrElite Veteran

New Jersey USA

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Any word on the YS56

Blade3d

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06-29-2009 12:24 AM  8 years agoPost 55
Jeff polisena

rrElite Veteran

westpalmbeachflorida usa

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The YS head is bigger but only up and down which will fit if they made it thicker it might be a problem . On the bearing issue I have done some basic tests and found that most failures come from over rpms on engine(motor)and fuel . I have been running Powermaster 30 and bearing issues are a thing of the past . Fuel costs more but makes up for it on bearing replacement and labor time.Also the YS has same bearing as OS.YS runs at lower RPM to make power so bearings last .
MOVING ON

I stole it ,flew it and gave it back ;)

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06-29-2009 06:17 AM  8 years agoPost 56
Pulento

rrVeteran

CHILE

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Some people say that YS powerband is higher.

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06-29-2009 01:44 PM  8 years agoPost 57
Fury3D (RIP)

rrApprentice

Summerville, SC 29485

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I am one of the test pilots for the new YS. Although the engine I have is a .55, I now have 130 logged flights on it and it is going as strong as ever. No bearing noise at all, and very strong. Several people at a few events have seen this engine run. I have been running it at 2100 in a T-Rex 600 nitro pro since I got it the end of March, which puts the engine RPM at 17850. IMO, I believe a lot of the bearing issues people have are when the engine sits for several days or weeks between running and the bearing starts to rust.

All in all, this is a great engine so far!!

Mike

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06-29-2009 01:56 PM  8 years agoPost 58
DarkSoul666

rrNovice

Wolfsburg...the City where Volkswagen is built

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Wich muffler do you use?

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06-29-2009 02:06 PM  8 years agoPost 59
Fury3D (RIP)

rrApprentice

Summerville, SC 29485

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I am using the Hatori tt 53 muffler.

Mike

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06-29-2009 04:23 PM  8 years agoPost 60
DS 8717

rrProfessor

Here wishing i was somewhere else

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Some people say that YS powerband is higher
The YS exhaust port has higher timing which means it has a higher RPM power band.

YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED

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HelicopterEngines Plugs Mufflers Fuel › OS-55 and YS-56 pics
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