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RE: OS engines overrated? - 12/28/2006 5:00:41 AM   
Boomerang1



Posts: 870
Joined: 6/24/2005
From: Sydney, AUSTRALIA
Status: online
quote:

Thunder Tiger was the first manufacturer to copy the OS engines, that were the
best in the business at the time....the early Thunder Tiger engines were probably
the worst pieces of junk ever sold on Planet earth.

To this day, I wonder how they got away with it.


Thunder Tiger employed Gordon Burford, manufacturer of Aussie Taipan engines, to teach them how to properly make engines. I remember the first Thunder Tigers as well, absolute rubbish. There's a lot more to making model engines than copying bits of metal, as Thunder Tiger found out the hard way.

Are OS engines over rated? If people (including myself) are still prepared to pay extra to own one then apparently not. - John.

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       Post #: 126

RE: OS engines overrated? - 12/28/2006 5:16:01 AM   
JettPilot



Posts: 1151
Joined: 4/18/2005
From: Paradise, USA
Status: offline 		O.S. engines are very overrated. O.S. engines run sweet for a short while, but why would anyone want an engine that peels its nickel plating very quickly ? This is a well known problem that happens all the time. See some examples below



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       Post #: 127

RE: OS engines overrated? - 12/28/2006 5:30:20 AM   
Flyboy Dave



Posts: 13462
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline 		....just curious, JettPilot....

....how many of your OS engines failed ?

Which engines of yours are rated "higher" than OS Engines ?

How many OS Engines have you owned ?

FBD.

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An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
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       Post #: 128

RE: OS engines overrated? - 12/28/2006 1:02:36 PM   
Kweasel


 

Posts: 1087
Joined: 1/7/2004
From: fort worth, TX, USA
Status: offline 		Every brand that has a vast lineup of types and sizes will always have some particular models that are exceptional and others that are not. OS has a few engines that I think are bargains considering how well they run, they also have some that are total rip-offs. Webra and Enyas are the only brands that I would take a chance on anymore, they have stuck with their classic designs and did not "cheap out" like OS did. With a good carb the current Supertigres are as good as the best OS engines ever were. I will say that, with a few exceptions, OS MAX has become a bit overrated.

(in reply to Flyboy Dave)
       Post #: 129

RE: OS engines overrated? - 12/28/2006 2:18:50 PM   
buzzingb


 

Posts: 1512
Joined: 9/4/2002
From: Bruce, MS, USA
Status: offline 		Apparently many OS engines fail after a while. The problem is that most people don't run their engines that much (maybe a few gallons a year) ant they they think they have a great engine if it last a few years. It is the dedicated weekly flyers that burn a gallon or more a week that really know how well OS is made. No liner should peel its liner period and if it does it is poorly made to start with. After saying all this my real gripe with OS is the prices they charge and when you need parts the part cost more than some of their competitors complete engine.

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Buzz

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       Post #: 130

RE: OS engines overrated? - 12/28/2006 2:22:15 PM   
Hobbsy



Posts: 10683
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: offline 		JP doesn't realize that he is preaching to the choir and they're all asleep. This is a long ago dead issue.

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       Post #: 131

RE: OS engines overrated? - 12/28/2006 6:14:00 PM   
boomerik


 

Posts: 79
Joined: 3/27/2005
From: wijngaarden, NETHERLANDS
Status: offline 		It`s not dead newer os engines like the fx,la series are real POS.
Not iff you fly them in a trainer or some scale model where nothing is asked off an engine.
But iff you fly them in something a bit fast or something that needs a bit of vertical performance they just don`t last. Liners peel bearings go bad all the things people are saying.And don`t come ****ing about what oil or fuel i use because all my other engines run great on the same fuel.Have 3 O.S. engines an fx61 an fx25 and an fs30 and only the fs 30 is still working but that one is in a trainer airplane both the fx61 and 25 are broken both have peeled liners and almost broken bearings.

So is O.S. engines overrated YES!! too much money for such an engine.
Rather have a Webra or an MVVS or an Old type OS like the fp,fsr,vf

Grtz Erik

P.S this is just my opinion and experience about O.S. so don`t get all fired up about it

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       Post #: 132

RE: OS engines overrated? - 12/29/2006 11:38:42 PM   
Semi Retired Aviator



Posts: 477
Joined: 9/20/2003
From: Melbourne Victoria, AUSTRALIA
Status: offline
I think I may have said it before on this thread but can't find it.

I'm with the majority, or what I see as the majority here. My OS engines are far less trouble than any of the others; not the most powerful, not the cheapest, but the most reliable, and if I have one quit in flight, it's what I've done, not the engine, e.g., too rich/lean, or (and I can't believe it either) I've run out of fuel. I run them on the rich side mostly, and 20% oil including 5% castor, 5% nitro, and they run like swiss clocks.

I fly all four strokes and am about to buy another 91 SII this week. In my opinion, all round great engines.

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Giver her some more power.......She won't take any more!

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       Post #: 133

RE: OS engines overrated? - 12/29/2006 11:42:23 PM   
SJN



Posts: 4390
Joined: 9/28/2002
From: Copenhagen, DENMARK
Status: online 		Love OS engines!

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Sonnich Johannesen

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       Post #: 134

RE: OS engines overrated? - 12/30/2006 6:13:24 PM   
jaka


 

Posts: 4536
Joined: 12/11/2001
From: Upplands Vasby, SWEDEN
Status: offline 		Hi!
Agree! Never had an OS that didn't work perfectly.

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MVVS, Motul "Micro" all synthetic oil

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       Post #: 135

RE: OS engines overrated? - 12/30/2006 8:07:05 PM   
Checklst


 

Posts: 492
Joined: 12/19/2002
From: Alpharetta, GA, USA
Status: offline 		Well I guess since this thread won't go away I might as well post, I have never had any trouble with any OS 2c or 4c, of course I have never had trouble with Como, TT, Saito,or the 2 Tower engines I just purchased. I been in this hobby for 26 years and only have had maybe 15 engines, I tend to run engines for a long time(years), from plane to plane,if only my planes lasted as long........

I have seen more than my share of engines ruined in the first 5 min's of break in at the field, Number one engine killer occurs at the break in.... followed by the Second killer lean runs in flights....Third Poor storage maintenance(between flights) well that's my take anyway..........

(in reply to jaka)
       Post #: 136

RE: OS engines overrated? - 12/31/2006 3:01:34 AM   
JettPilot



Posts: 1151
Joined: 4/18/2005
From: Paradise, USA
Status: offline
quote:

ORIGINAL: Flyboy Dave

....just curious, JettPilot....

....how many of your OS engines failed ?

Which engines of yours are rated "higher" than OS Engines ?

How many OS Engines have you owned ?

FBD.


You know the answer to that Flyboy Dave, the moderator W8YE locked my thread about " O.S. Engines peeling thier cheap nickel liners." I know you read it, so why do you ask like you have never seen my posts about this ? Does you PRO - OS agenda have you in such a state of denial that you dont even remember the MANY MANY reports of O.S. engines peeling as in the pictures below ? To jog your very selective memory, click on the link below. For anyone that wants to know about this issue, look at the results of this poll that the moderators locked and do not want you to see. 50 % of the people that responded had an OS peel its liner or had first hand knowlege of one that did. 50 % is a HUGE number to have seen these fialures... Thats reality, no spin, just cold hard facts.

http://www.rcuniverse.com/forum/m_4892213/anchors_4892213/mpage_1/key_cheap+nickel+liner/anchor/tm.htm#4892213

JettPilot





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< Message edited by JettPilot -- 12/31/2006 3:06:06 AM >

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       Post #: 137

RE: OS engines overrated? - 12/31/2006 3:22:26 AM   
Flyboy Dave



Posts: 13462
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: offline
quote:

Does you PRO - OS agenda have you in such a state of denial that you dont even remember
the MANY MANY reports of O.S. engines peeling as in the pictures below ?


...."state of denial"...???

http://www.rcuniverse.com/forum/m_1502580/anchors_1502580/mpage_1/key_sad%252Cdemise/anchor/tm.htm#1502580



_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to JettPilot)
       Post #: 138

RE: OS engines overrated? - 12/31/2006 3:23:28 AM   
MikeL