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02-26-2010 03:01 AM  10 years ago
Wingman77

rrProfessor

Pulaski Tennessee

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hey, how many gallons do you have through your 55?
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02-26-2010 03:03 AM  10 years ago
TMoore

rrMaster

Cookeville, TN

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3 gallons at the moment, the WX has been crap around here as you know Carl.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 03:05 AM  10 years ago
Jgatorman

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Birmingham, AL

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Dude I am not trying to get into an exposive flame war. I was just basing my information off of your previous statement. I completly understand OS makes engines 10 to 1 with competitors. However not 1 post on bearing failure for YS.56 that I have located, so with that said I would like to openly disagree with you and if I did that would be ok people are allowed to not agree even on RR, however I have never owned or ran any nitro engine so I can not. I am just looking for non biased logical data that is following a linear thought process. I feel yours did not due to you basing all OS failure as pilot error. YS.56 owners should have had a single failure posted even with a 10 to 1 ratio of ownership.
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02-26-2010 03:12 AM  10 years ago
TMoore

rrMaster

Cookeville, TN

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Dude I am not trying to get into an exposive flame war. I was just basing my information off of your previous statement. I completly understand OS makes engines 10 to 1 with competitors. However not 1 post on bearing failure for YS.56 that I have located, so with that said I would like to openly disagree with you and if I did that would be ok people are allowed to not agree even on RR, however I have never owned or ran any nitro engine so I can not. I am just looking for non biased logical data that is following a linear thought process. I feel yours did not due to you basing all OS failure as pilot error. YS.56 owners should have had a single bearing failure posted even with a 10 to 1 ratio of ownership
Dude, I fly with a lot of different folks and I have yet to see anyone with a YS56 so that's probably a good reason that you haven't heard about bearing failures yet.........there just aren't that many of them running out there. Trust me bearing failures are forthcoming, that's just the way it is. There is no magic in the YS engines.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 07:41 AM  10 years ago
Fernando

rrApprentice

Madrid

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Whether in Spain has been just a bit better, but only just. About 10 gallons here through mine and the rear bearing is just fine. I do not have a reason myself to yet think that this engine is worse than any other in the market.
But having said that I have owned nearly ten OS50s with many many gallons through them and never changed a bearing. I have to say that I have always modified all my 50s (removing the web-leaving it similar to the 55- and other stuff).
I have been racing 1/8 rc cars for many years too, many of those teaming with my good friend MR one of the top European rc engine tuners, in this context ABC engines do wear out bearings fast.
But ringed engines do not tend to do this so often if cared enough.
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02-26-2010 03:23 PM  10 years ago
supertigre

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Castle Rock, Colorado

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TMoore
If my bearing sales are anything to go by, I thank God for the OS Hypers every day. The ratio of sales of Hyper bearings to all others COMBINED (ALL BRANDS AND SIZES) is at least 40-50:1. That also includes all the OS 40,46,50,55 FX,AX,FSR,SF plank engines out there. Granted, they are much easier on bearings than heli engines, but there has to be a bazillion of them running in terrible conditions every day.
I will give an accurate count later today.
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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02-26-2010 03:37 PM  10 years ago
Jgatorman

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Birmingham, AL

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Thanks, Supertigre this is the type of actual data I am interested in, not some over zealous individual with a flair for the dramatic speaking on this subject.
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02-26-2010 03:43 PM  10 years ago
bkervaski

rrElite Veteran

Birmingham, AL, USA

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If my bearing sales are anything to go by, I thank God for the OS Hypers every day.
this is the type of actual data I am interested in
The OS50 Hyper has been *the* most popular 50 engine for years, so you have to factor in that +/- 90% of the 50 size heli engines purchased over the last 3 years has been the OS50 Hyper when running these types of statistics.

YS sales are tiny in comparison, this fact is backed up simply by the factory, they don't do large runs of anything, it's a very small shop.

I'm not necessarily an OS fanboy even though I currently run OS 90's, I like YS too, they have both been at the top of a very short list since I've been in the hobby.

(edit) Oh, one more thing, the YS50 was a dismal failure compared to the OS50 Hyper. The OS55 and YS56 are *both* new motors, it's going to take some time to get a really good idea of which one is better.
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02-26-2010 04:31 PM  10 years ago
TMoore

rrMaster

Cookeville, TN

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TMoore

If my bearing sales are anything to go by, I thank God for the OS Hypers every day. The ratio of sales of Hyper bearings to all others COMBINED (ALL BRANDS AND SIZES) is at least 40-50:1. That also includes all the OS 40,46,50,55 FX,AX,FSR,SF plank engines out there. Granted, they are much easier on bearings than heli engines, but there has to be a bazillion of them running in terrible conditions every day.
I will give an accurate count later today.
That's great Paul but you ought to be clear about the fact that the OS50 bearing sets fit a lot of engines, not just OS50's. Besides this just supports what I've been saying, there are so many more of these engines out there and so many folks that can't tune them.
Thanks, Supertigre this is the type of actual data I am interested in, not some over zealous individual with a flair for the dramatic speaking on this subject.
Get back to us after you've had a chance to run your engine. I'm sure that after a couple of tanks you'll know all about it.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 05:01 PM  10 years ago
50 Size

rrNovice

Pymouth,Indiana

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My vote is for TMoore. He has alot of good points, If you don't know how to tune the engine any brand is going to crap out on you.
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02-26-2010 05:01 PM  10 years ago
supertigre

rrApprentice

Castle Rock, Colorado

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With helis still being a fringe sport compared to the numbers of planks out there, I would say that there are more OS 40-50 plank motors still running than all the Hypers ever sold. Add to that all the other brands and I would believe that the Hyper is only middle of the road as far as sales go. Surely more than YS or TT FOR HELIS but in the overall scheme of things, a minor blip. The fact that they use the same bearings is meaningless unless you are saying that everyone with a plank engine are looking for bearings in the Heli Engine listings!

Remember, OS said that the 46FX didn't have a liner peeling problem!
Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs
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02-26-2010 05:11 PM  10 years ago
TMoore

rrMaster

Cookeville, TN

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With helis still being a fringe sport compared to the numbers of planks out there, I would say that there are more OS 40-50 plank motors still running than all the Hypers ever sold. Add to that all the other brands and I would believe that the Hyper is only middle of the road as far as sales go. Surely more than YS or TT FOR HELIS but in the overall scheme of things, a minor blip. The fact that they use the same bearings is meaningless unless you are saying that everyone with a plank engine are looking for bearings in the Heli Engine listings!

Remember, OS said that the 46FX didn't have a liner peeling problem!
Do the YS, OS and TT engines in the 50 size range use different size bearings Paul?

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 07:28 PM  10 years ago
Jgatorman

rrVeteran

Birmingham, AL

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[quote]My vote is for TMoore. He has alot of good points, If you don't know how to tune the engine any brand is going to crap out on you

Absolutly, However you are not seeing posts on failed engines, not just bearings on the other engines nor are you seing them for sale. Food for thought.
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02-26-2010 08:01 PM  10 years ago
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Anyone have both a YS56 and an OS55 that can make an unbiased and honest comparison?

Jeff, it takes all of 15 minutes to swap a rear bearing in both engines and they are pretty cheap. I flew that TREX 600N for a year and swapped the bearing twice, I bet it had 500 flights. Joe swapped his only two or three times and you know how much he flies. You remember Matt's N5 from our 3D school, how it flew? Like a 90, OS55 + Funtech pipe.

I would swap my engine bearings along with my semi-annual heli maintenance anyway, it's a cheap way to keep your engine running new.

What would CY do? (hint: he flies OS)
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02-26-2010 08:23 PM  10 years ago
TMoore

rrMaster

Cookeville, TN

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As I've been saying; there are a ton of OS engines that are in the marketplace right now because they are the predominant manufacturer of our heli engines. OS has the machining capability to make so many more engines than YS that they could literally drown the YS facility in a shower of chips from the production of OS engines. YS is a very small manufacturer of engines and their numbers just aren't up there. There is also the fact that the OS 50 Hyper has been out for a while now and there are a thousands of those engines in the marketplace. I'm not surprised that some of them have failed, I'm not surprised that there are some for sale in the engine section of RR and other forums.

I'm not banging on folks because they don't have the experience to tune engines, it's just an observation. When you can't tune engines, the result is that they get burned up, bearing and engine components fail. The refrain is always the same; "I can't believe this engine failed, it only has 2 gallons through it, the engine was running so rich and it was cool to the touch too." At a recent event one pilot had his engine break the ring (Hyper 50)and he made the comment that he just richened the engine up a quarter of a turn and didn't understand what happened. So I asked him if I could look at the carb while he was replacing the ring. When I turned the HS needle in, it was only open 1 1/4 turns running 30%. At 1000' above sea level, this is way too lean and it had been running like this for a while up until the time it didn't make power anymore.

Factory sponsored pilots that have the full ride don't give a rat's a$$ whether or not they run an engine lean because they have more engines on the shelf. When they are at events engines get pushed to showcase helicopters and their skills. The hotter the flight and the pilot, the better the equipment looks. Pilots at the events see the demos and what usually happens? Come Monday morning after a big event there is some serious activity at the online retailers. The real deal is behind the scenes in terms of what has to happen to get ready for the next event; what servos get replaced/rebuilt, what engines get replaced/rebuilt, what sort of behind the scenes maintenance has to get done prior to the next event. The bottom line is that we all want to fly like our fave pro pilot and in order to do that which we see at events and online, the engines are pushed to the limits to make the magic happen.

It's a balancing act. I don't care what engine you run, there is no magic bullet. You have to run it either to make power or to last, you don't get both unless you understand the limits of the engine and your piloting/tuning skills. If you want engines to last you have to back off the ultimate power level in order to do that, otherwise buy more engines or learn to rebuild.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 08:55 PM  10 years ago
Jgatorman

rrVeteran

Birmingham, AL

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I appreciate all of the input and I have never said OS is a bad engine all I was looking for was a direct comparison between OS55 and YS56. from anyone who had experience with both hence my other threads. I incited this flame by disagreeing with tmoore's perspective. As I have stated many times I was looking for data. The argument no one around me flies YS therefore insinuating it is a lesser motor would be no different than me stating no one around me flies a Hirobo D3 so it must be a lesser helicopter. It is not the data that is an issue it is the line of reasoning ie if it failed it was pilot error. I recall that Matt specificly mentioned manufacturing issues with OS50 bearing also this seems to have happened again for they have already upgraded the OS55 bearing. Also I have seen people have great success with both engine OS and YS, I just have no experience at all with the big blocks. Unfortunately this thread does not seem to be moving in the inteded direction. I hope no ones feelings have been hurt. I just was hoping for data not opinion or concjecture. The title of the thread has not been really been addressed especially in the latter posts.Thanks to everyone I have made my decission and it will be YS56 with the Funtech b320. I will be taking Bill's advise which was if I don't like it I can just sell it and try a different combination.
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02-26-2010 09:23 PM  10 years ago
50 Size

rrNovice

Pymouth,Indiana

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Good point too Jgatorman, Buy want you want. I have guy's at the field that use both YS and OS and are happy with both. Engines are just like Heli's, Some are going to have problems and some are not with what ever brand you buy. Me, I would buy either. " Good Luck " with your YS.
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02-26-2010 09:29 PM  10 years ago
TMoore

rrMaster

Cookeville, TN

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Is this the first 50 size engine and heli that you've ever owned? Your profile shows this: Vibe 50, YS56, funtech B320, Raddix, Total G, 8717's, 8900g

I assumed you already had the engine and were running it so you should know all about it. Now it appears that don't have the engine yet. Is that right?

As far as the topic of the thread is concerned, Carl aka Wingman77 asked if anyone has got 30+ gallons through the OS55 engine yet and the answer from me is that I only have 3 through mine but I'm sure there are some factory sponsored pilots that may have that many gallons through theirs but the engine is relatively new and I got mine about 1 month after the general release. OS does not make the bearings as these are manufactured by a vendor like NTN, SKF or FAG. Regarding durability, this engine, IMHO is no better or worse than its predecessors.

In regards to data, if you are looking for empirical data that is usually in short supply on this and most other forums unless someone is logging flights every time they go out with known flight test parameters set prior to the sampling duration of that test. Speaking for myself, I just want some decent WX so that I can go out to my backyard and start burning the 50 gallons of fuel that I have out in my barn. Flying is more important than logging how long I fly and what.

Regarding the topic of the thread; OS 55 durability, it seems to me that Wingman77 should be very comfortable with the durability of the new 55 especially in light of the fact that his 50 Hyper has run so well for him and only required a short visit back to Hobby Services for a little warranty work. Helicopter modeling is like a lot of things in life, sometimes you just have to step out and try things.

TM
Part 107.
The only ZERO flight hour certificate in the world.
It's like getting a driver's license without the driver's test.
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02-26-2010 09:35 PM  10 years ago
Jgatorman

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Birmingham, AL

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No I just posted that under profile today in preperation for it's arrival and build
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02-26-2010 09:39 PM  10 years ago
Jgatorman

rrVeteran

Birmingham, AL

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Evidently wingman has changed his tune for their is no one pushing harder against the os 55 than him. I can make that statement for I speak with him daily and have logged many hours flying with him. I was actually with him when his OS failed.
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