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RE: New Engine
I agree the webra 50 is good. I believe the tt46 pro is really the most user friendly cost effective for his trainer/experience level. Does he want a remote needle set up?
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RE: New Engine
I would like to make a blanket apology to anybody I may have upset, I wasn't directing that comment at anybody. I agree that ever body has their own choice of engines, and I respect that. I've had a lot of people think I'm crazy "because I want to pay more than I have to". I received a PM from somebody that blasted me because I payed too much and their engine was "just as good as an OS". That's what prompted me to post that message. It's fine that a person prefers different engines than I do and I respect that, all I ask is that they also respect my choice too.
Once again I apologize to anybody I may have offended. That is definitely not what I meant to do. |
RE: New Engine
What is posted here are opinions & experiences. Nobody should get upset at anybody's personal experiences & everyone is entitled to an opinion -- it's all grist for the mill. Personal preferences are also just that -- preferences -- nobody can force any of us to buy something against our will.
Not all machines are equal, either from different manufacturers, or even from the same manufacturer. Same goes for the end-users -- some have the necessary knowledge, patience & affinity for mechanical things to make virtually any motor work acceptably well, while others can't tie their own laces, figuratively speaking. Mix all of that together & the postings here will show good & bad experiences with engines from any manufacurer. Just don't let brand loyalty get in the way of rational choices. For a while I did exactly that & it led me to trouble. Companies change, technology changes, markets change & experience changes us as well. What is good today can be tomorrows dud & vice-versa. Keep your wits, & don't get personally involved with your own (or someone else's) choices. |
RE: New Engine
ORIGINAL: piper_chuck ORIGINAL: Sukhoi_Madness ORIGINAL: piper_chuck ORIGINAL: Sukhoi_Madness I am pretty new to R/C Airplanes but I have still to work out why people go with OS engines when you compare price... OS engines are more expensive because they are not made in China… I was not trying to justify the price of OS, I was just giving you some reasons why people might be willing to pay the difference. You may have decided that the extra money is not worth it, and if you want to buy based on price, that's ok. However, other people have different opinions, and base their buying decision on more than just price. It happens with cars, houses, and lots of other purchases. That SHOULD be ok, and there SHOULD be no need to call someone else's opinion or purchase decision "ridiculous". Mingbai ma? (Chinese for do you understand?) Goodness knows... You must be correct of course... Re-read your post... You basically said of all the ST engines you have had; you have not had one you have successfully used. Yet the engines have been around for 50 years... Someone must enjoy them? I presume... I did not mean to offend you... But “With all Due Respect” of course... I don’t think your statements where constructive... Sorry... No pretentious Chinese proverb to add... Matt |
RE: New Engine
Whoa! Sorry, I didn't mean to start a brand A vs. brand b vs. brand c etc etc flame war here...I was just deciding on which engine to buy...I have been flying for almost a year and within that year, I bought a Avistar, a Ultra Stick .60, and a Eflite Tribute with park 370 BL motor (btw, I'm 13) and I can beat the snot out of all of them and fly em upside down from take off until landing...now I was looking at a new engine for the Avistar so I could have more fun with it...now I'm deciding between the TT .46 and the OS .50. I like OS because of the quality because price dosen't matter to me, I just want a good, reliable engine...that is why I posted here, so I could get some opinons from people that have been flying much, much longer than I have and have more experience than I have...the only engine I ever bought is an OS so I that is why I put the TT...to get more experience with different engines...
Okay? Thanks for all the help.... |
RE: New Engine
remember the avistar is meant for smaller 36-46 size engines. Putting something too heavy in it will make you noseheavy and have to put weight in the tail which you dont want. The webra 50 is lighter than most 46's by around 2 oz and it will kill them in power.
Tom |
RE: New Engine
ORIGINAL: Sukhoi_Madness Sweet... So next time you make some scathing remarks on a product to a person who obviously has no experience with it, I won’t comment, and sit back and watch that person accept your opinion... Goodness knows... You must be correct of course... Re-read your post... You basically said of all the ST engines you have had; you have not had one you have successfully used. Yet the engines have been around for 50 years... Someone must enjoy them? I presume... I did not mean to offend you... But “With all Due Respect” of course... I don’t think your statements where constructive... I don't think it's constructive to respond with a comment like "that's ridiculous" without an explanation of what you take issue with. It just leads to misunderstandings. I don't think it's constructive to get all hot and bothered when someone provides additional information to help you understand why a person makes an engine decision on more than just price. This was after all something you asked about. You posted about buying based on price. I provided some other things that people consider when buying an engine, and some comments on my experience with the 2 brands. Why did that bother you so much that you are now bordering on being insulting to me? Sorry... No pretentious Chinese proverb to add... Can we get back to the (real) discussion now? |
RE: New Engine
Good Point, O.S. .50 SX weight with #873 Muffler, is +/-17.26 oz, Webra .50 GT is 16.10 oz. Pretty close, but the Webra has the weight advantage, although the SX would not weigh down that plane much. I would advise against any of the .60 size engines for this plane. Just my $.02, Part of the fun in this great hobby is trying new things, so maybe I will order a Webra and give it a try, sounds like a nice engine. Good luck with your engine quest..........and remember above all-----have fun!!!![8D]
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RE: New Engine
One of my engines is a Webra .32. Once I got it broken in and adjusted I've been very happy with it.
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RE: New Engine
I notice that no one mentioned the ASP Super Series. I bought a ASP 52 Super Series myself to try out. I am using it to replace an 40FX on my Tiger2. Not that the OS engine didn't fly the plane well, just looking for more punch. The 52 looks like an OS clone but haven't had a chance to try it. The carb barrel turns smooth as silk just like an OS. Might be another engine to check out. Still too much mud and snow to get to our field and try mine. [8D]
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RE: New Engine
ORIGINAL: britbrat ORIGINAL: 2slow2matter ball bearings--support the crankshaft. Most have them at the front and back--this is the best setup. The other alternative is a bushing--basically a polished metal to metal point of contact--much more friction using this setup than with ball bearings--therefore, the ball bearing engines aren't robbed of as much power as the bushing engines are. --- There is no metal-metal contact with a bushing engine. The crank "floats" on a film of lubricant within the journal (bushing) bearing & has very low friction. The reason BB engines are generally more powerfull is that they invariably have larger & more agressively timed inlet & exhaust ports. Bushing bearings are cheaper to make & are therefore used on low end engines that are primarily employed as "trainer" engines. These can last every bit as long as a BB engine & in some cases are as powerfull as their BB counterparts. that is exactly what a bushing is--two pieces of polished metal that ride next to each other. Yes, you are correct, there is a thin film of lubricant that coats these surfaces and this reduces the friction, but does not eliminate friction. Friction cannot be eliminated. When first started, or if ran lean, that film of lubricant can be very thin, or non-existant. Therefore, in my experience (and I have both kinds of engines) bushing engines need to be ran a little richer than ball bearing engines. At least that's according to my OS manuals. I stand by my assumption that ball bearing engines are much stronger than their bushing counterparts. However, both have their places. That being said, I would not even consider a bushing engine in this application. My opinion is quit killing yourself over this decision, and order the 50 SX. You'll be happier in the end, and never question what if. A couple of reasons for this: first and foremost--it's what you want second--it will power your second plane much better, and it sounds like you'll be moving on pretty quickly Third--it's probably more for your money. I do not have any experience with ringed two stroke engines, but if it's an OS, it's good. I have two brands of two stroke engines--evolution, and OS. I routinely go to the field to see other modlers tinkering with their engines, while I fly. My brother had a super tiger engine that he eventually quit fiddling with--nothing but a headache. I'm sure some people have no problems with it, but personal preference--I like flying more than tinkering. I had a VMAX engine that I tried--second flight it broke the con-rod. I got it replaced and promptly sold it to my dad for 45 dollars. I've never looked back, and neither has he (lots of successful flights on it so far). I'll never own another one, and he probably would. So, to each his own. HOwever, I'm with piper on this one--if you want reliability, go with the OS (or evolution). |
RE: New Engine
Actually, a good journal bearing can have less friction than a ball race bearing. You are correct about the care & feeding of journal bearins -- they absolutely must have continuous lubrication, while a ball race can brieffly tolerate lubrication starvation & requires less overall lubrication.
However, a properly made & lubed journal bearing will outlast the finest ball bearings in normal operation. |
RE: New Engine
ORIGINAL: britbrat However, a properly made & lubed journal bearing will outlast the finest ball bearings in normal operation. |
RE: New Engine
Too many engines [sm=spinnyeyes.gif]
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RE: New Engine
HAHAHAHAHAHAHA :D
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RE: New Engine
What?
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RE: New Engine
You know, I'm probably the luckiest person flying...because of where my dad works, I get a unlimited supply of free fuel tubing instead of $25 for 50' :D....well, maybe not the luckiest...
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RE: New Engine
Which one are you going to get?
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RE: New Engine
ORIGINAL: delman Which one are you going to get? |
RE: New Engine
Just to put in my thoughts you can get a good .5 bb 2s for 55$ and thats with shipping and so far it has run very well turning a 11x9 apc at 14000 and only a gallon of fuel through it. It is a SK .50 made by Kangke In Long Island NY.
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RE: New Engine
11x9 @ 14,000?? Wow, that is one heck of an engine! What plane do you have that on?
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RE: New Engine
I thought so too I have it on my kids LT-40 right now but I think I am going to put it on my FUNAIR .
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RE: New Engine
Get the TT46. With the angled back needle it's out of harms way more. No delay on setting needle like OS. In fact buy 2 for the same money as OS....... Easy to break in and lots of power for a 46.
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RE: New Engine
I also have 2 super tigre and like them too. One feature of ST that hardly gets mentioned is the muffler system that adjusts in and out , and up and down angle on engine. Will fit alot of planes and direct more oil away from plane....
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