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RE: Copperhead engine owners? - 12/17/2006 12:23:14 AM   
CopperheadAV



Posts: 539
Joined: 12/12/2005
From: Zhong Shan,Guang Dong, CHINA
Status: offline 		I'm in Va right now. The weather has been mild and in the high 60's low 70's most days. Azhar, move to VA!! Global Warming seems to be becoming popular here!!

Cheers,


_____________________________

Tim - Ohio Model Products / Copperhead Aviation
www.ohiomodelplanes.com
www.copperheadaviation.com
www.rcmanufacturing.com

(in reply to phattalon)
       Post #: 76

RE: Copperhead engine owners? - 12/19/2006 2:30:48 PM   
dhooks



Posts: 1043
Joined: 10/7/2002
From: Lake Butler , FL, USA
Status: offline 		Ahem?

_____________________________

Dan - TEAM ME

(in reply to CopperheadAV)
       Post #: 77

RE: Copperhead engine owners? - 12/25/2006 9:42:29 AM   
novabill


 

Posts: 1776
Joined: 9/17/2003
From: Hilton Head Island, SC, USA
Status: offline 		Today, it was sunny 74 degrees and lighter wind than usual. I got in some Christmas flying and was thinking about going to the beach for a swim.

Move to China. The weather is great here!!



_____________________________

William McClooney

(in reply to dhooks)
       Post #: 78

RE: Copperhead engine owners? - 12/25/2006 5:43:34 PM   
cuwaert


 

Posts: 45
Joined: 10/13/2005
From: Herk de Stad, BELGIUM
Status: offline 		Hi guys. OK another CRRC pro clone or whatever.
Someone makes the parts and some one else assembles them, some times with blue cylnders and some times with red ones and here and there some other muffler or cdi.
I don't know who does what here but I believe everyone is charmed by the attractive price of it all, retailers as well as the final targed meaning us... model builders.
I was said MVVS is Chinese too, I was said Zenoah is shipped to Germany and there it is disassembled and checked out....
MVVS and Zenoah are , just as ZDZ, DA, 3W and a few others, engines you know of to be one part of your assembly that won't trouble you and cost around 500€ ??EVEN when it comes from China.
I think that assembling a good stabile bugfree model engine isn't as simple as it seems. It costs thourough QC and tight production tolerances, it costs precise customer's troubles follow-up and research to pinpoint every single bug on it.
I believe everyone does his best to make this newcomers to become a product to meet customers satisfaction but I also believe one isn't there yet.
I too am a "victim" of my greed to buy a CRRC pro ( in my case) thinking after seeing that some parts look a lot like zenoah?? " what on earth can one screw-up on something that simple as a model engine ?"
Now I know
It's a matter of time and they will have found the wright formula...for a few dollars more.
Pitty for those who put their money in it to check it out.


(in reply to azhar)
       Post #: 79

RE: Copperhead engine owners? - 12/25/2006 7:01:09 PM   
Herby 1


 

Posts: 10
Joined: 4/26/2003
From: Northern Arizona
Status: offline 		Screwing up model airplane engines didn't start with the Chinese...A&M made exact copies of Sachs engines...The cases were close enough so that a chainsaw case front half would bolt to an A&M rear half...The cranks were dimensionally exactly the same, but unfortunately the material was not right and the balance factor turned out wrong..The smaller engines were not too bad, the crank problems increased exponentially with engine size..A 5.8 A&M Sachs with their crank would either shake the plane apart or break the crank...The rods were either aluminum or steel with pressed in Torrington bearings...The bearings in the aluminum rods would slide out of postion when the rods got hot, and the bearings didn't hold up...The fix was a genuine Sachs crank with a new Sachs wrist pin bearing..There are lots of these fixed this way still flying....
There are/were others, most are no longer around...

(in reply to cuwaert)
       Post #: 80

RE: Copperhead engine owners? - 12/25/2006 8:32:00 PM   
CopperheadAV



Posts: 539
Joined: 12/12/2005
From: Zhong Shan,Guang Dong, CHINA
Status: offline
quote:

ORIGINAL: cuwaert

Hi guys. OK another CRRC pro clone or whatever.
Someone makes the parts and some one else assembles them, some times with blue cylnders and some times with red ones and here and there some other muffler or cdi.
I don't know who does what here but I believe everyone is charmed by the attractive price of it all, retailers as well as the final targed meaning us... model builders.
I was said MVVS is Chinese too, I was said Zenoah is shipped to Germany and there it is disassembled and checked out....
MVVS and Zenoah are , just as ZDZ, DA, 3W and a few others, engines you know of to be one part of your assembly that won't trouble you and cost around 500€ ??EVEN when it comes from China.
I think that assembling a good stabile bugfree model engine isn't as simple as it seems. It costs thourough QC and tight production tolerances, it costs precise customer's troubles follow-up and research to pinpoint every single bug on it.
I believe everyone does his best to make this newcomers to become a product to meet customers satisfaction but I also believe one isn't there yet.
I too am a "victim" of my greed to buy a CRRC pro ( in my case) thinking after seeing that some parts look a lot like zenoah?? " what on earth can one screw-up on something that simple as a model engine ?"
Now I know
It's a matter of time and they will have found the wright formula...for a few dollars more.
Pitty for those who put their money in it to check it out.




OK, you have made some assumptions here. Let me correct a few of these for you. I am sorry to hear you had some problems with another manufactures motor, but please don’t confuse the lack of another company’s QC and RD efforts with ours. We have spent two years, at great expense, working with and trouble shooting these motors before we sold the first one. What I can’t understand is how one can condemn a product they have never tried?? Amazing!!

The venom motors are not in any way a clone of the CRRC or any other motor. This is our own proprietary design and every part on the motor, excluding the ignition, piston and carb is manufactured by us at our factory and came off our own drawling board.


_____________________________

Tim - Ohio Model Products / Copperhead Aviation
www.ohiomodelplanes.com
www.copperheadaviation.com
www.rcmanufacturing.com

(in reply to cuwaert)
       Post #: 81

RE: Copperhead engine owners? - 12/25/2006 10:59:43 PM   
cuwaert


 

Posts: 45
Joined: 10/13/2005
From: Herk de Stad, BELGIUM
Status: offline 		RCIGN, indeed when one wants to copy something one should do it good and copy it without cutting apparantly important corners. I believe indeed that what the chinese do someone has tried before.
As to Copperhead engines I admit fully not have had any of your products in evaluation and I fully understand your frustration when I express my sceptisisme. I hope you understand mine to.
If your product is a good one it will show because I have seen in this forum that a lot of people beleave in you and will buy your product and if they are satisfied they will express that just the way I express my state of mind towards the CRRC pro witch I believe will become a good product too in the near future.
It's just that a few brands seem to assemble engines with apparently the same parts, but indeed some invisible details might do the trick to make it work and I hope forall of us that is the case because this would be a blessing for model builders to be able to purchase a good gasser for such an attractive price.


(in reply to CopperheadAV)
       Post #: 82

RE: Copperhead engine owners? - 1/8/2007 2:11:09 AM   
novabill


 

Posts: 1776
Joined: 9/17/2003
From: Hilton Head Island, SC, USA
Status: offline
quote:

ORIGINAL: cuwaert

Hi guys. OK another CRRC pro clone or whatever.
Someone makes the parts and some one else assembles them, some times with blue cylnders and some times with red ones and here and there some other muffler or cdi.
I don't know who does what here but I believe everyone is charmed by the attractive price of it all, retailers as well as the final targed meaning us... model builders.
I was said MVVS is Chinese too, I was said Zenoah is shipped to Germany and there it is disassembled and checked out....
MVVS and Zenoah are , just as ZDZ, DA, 3W and a few others, engines you know of to be one part of your assembly that won't trouble you and cost around 500€ ??EVEN when it comes from China.
I think that assembling a good stabile bugfree model engine isn't as simple as it seems. It costs thourough QC and tight production tolerances, it costs precise customer's troubles follow-up and research to pinpoint every single bug on it.
I believe everyone does his best to make this newcomers to become a product to meet customers satisfaction but I also believe one isn't there yet.
I too am a "victim" of my greed to buy a CRRC pro ( in my case) thinking after seeing that some parts look a lot like zenoah?? " what on earth can one screw-up on something that simple as a model engine ?"
Now I know
It's a matter of time and they will have found the wright formula...for a few dollars more.
Pitty for those who put their money in it to check it out.




There is nothing wrong with being skeptical about a new product. Where you are off base here is that you made assumptions that were totally false. Remember the old saying about ASSuME???
As Tim stated, we have a casting and plating facility here...No Cloning We machine the parts here....we don't buy them from vendors.
All engines have similarities as do all airplanes but each has it's own design...Look at the Bore/Stroke and rod length on the Venom...HMM, you won't find any copying there... Same goes for the porting.
This engine was designed from the ground up in-house to meet specific needs.
As for Quality Control, you are right. It's downright expensive, but cannot be overlooked. We run engines all the time. We run them through complete lifecycles, we run them lean to kill them and then disassemble them to try to identify possible weak links. QC in the assembly is paramont and takes me about 20-25 hours per week just inspecting what we expect.

We knew the market was looking for an engine like this and we are committed to doing it better.


< Message edited by novabill -- 1/8/2007 2:12:44 AM >

_____________________________

William McClooney

(in reply to cuwaert)
       Post #: 83

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> RE: Copperhead engine owners?
Page: <<   < prev  1 2 3 [4]





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