RE: Copperhead Aviation Venom 45-30  
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RE: Copperhead Aviation Venom 45-30 - 1/13/2007 10:30:23 PM   
azhar


 

Posts: 571
Joined: 2/21/2002
From: Redmond, WA, USA
Status: offline 		Mine is ready to go as soon as the snow stops and the temps go above 32.



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RE: Copperhead Aviation Venom 45-30 - 1/13/2007 10:38:11 PM   
Mitsu1



Posts: 577
Joined: 11/5/2002
From: Dumas, AR, USA
Status: offline 		Cool, .. Whose red standoffs are you using? .. and what kinda pole arrangement is that you're using as a test bench?

< Message edited by Mitsu1 -- 1/13/2007 10:39:52 PM >

(in reply to azhar)
       Post #: 52

RE: Copperhead Aviation Venom 45-30 - 1/13/2007 10:53:47 PM   
mfuess



Posts: 402
Joined: 9/5/2002
From: Bedford, TX, USA
Status: offline 		And, is that a FOOTBALL game going on in the background? Don't be watching a game while you have that engine running!



< Message edited by mfuess -- 1/13/2007 10:56:48 PM >

(in reply to Mitsu1)
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RE: Copperhead Aviation Venom 45-30 - 1/13/2007 11:58:16 PM   
azhar


 

Posts: 571
Joined: 2/21/2002
From: Redmond, WA, USA
Status: offline 		Mitsu,

The stand is PSP mfg. The standoffs are Forgues Research.

Mfeuss,

I never run engine indoors. And yes that is a football game in the background. And don't worry, I don't let anything distract me when I run engines.

Azhar

(in reply to mfuess)
       Post #: 54

RE: Copperhead Aviation Venom 45-30 - 1/14/2007 1:14:47 AM   
dhooks



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

ORIGINAL: mfuess





Now about the Venom engines...
These are not knock-offs, nor are they conversions. They ARE genuine model aircraft engines designed and manufacturered by Copperhead Aviation. Why would this matter? Simple... the engines are weight efficient, powerful, and constantly being improved to bring you the best possible model aircraft engine for your hobby dollar.





Man dont swell Tims head to far it may burst.

Seriously though there are a cpl reason I like the Venoms over some other budget engine lines.

Most are either a cheap knockoff that are sold by various ppl comanies importers etc an while some have been worked over an are a decent engine others quite frankly are junk even though they both have the same name on the side. Not to mention they are going to be sold to whoever pays the most for them so if someone does devlop a good product it can disappear just as quick.

Copperhead can controll what is happening from raw material to costomer service. Doesnt mean there wont ever be problems because there will be but like was mentioned how it was handled counts. Even the holy grail of all engines the mighty all conquering DA had problems but they were handled.

The other reason I think Venoms have an edge is they were designed ground up to be an airplane engine, most engine based on or simply converted chainsaw engines do not have optimal timing an porting for the rpms we run, not makeing a completely blanket statement here but the Poulan 46 comes to mind. Ive saw some data that shows the Venom 45 turning 500-1000 more rpms an thats from optimized bore stroke porting timeing etc.

Dont get me wrong chainsaw engines are great an Ive been an owner an was pleased but now there is amuch better product available at the same price.


All that being said if Copperhead doesnt send me 3 45s an 3 30 cc's for extensive testing Ill have to conclude they are scared that Ill find a flaw in the product an report on the awful quality of the.


< Message edited by dhooks -- 1/14/2007 1:17:28 AM >

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RE: Copperhead Aviation Venom 45-30 - 1/14/2007 1:27:35 PM   
mfuess



Posts: 402
Joined: 9/5/2002
From: Bedford, TX, USA
Status: offline 		I was sort of thinking the same thing... about a half dozen engines for "evaluation". LOL, nice try!

The Poulan CS 45 engine doesn't make a very good airplane engine! I have 2 of them, neither one trips my trigger. The ECHO 50cc CS is the shortblock BME uses, I have one of those too (the Echo 50cc shortblock). Potent, very potent. The meanest chainsaw conversion I've done yet is a Husqvarna 385 XP, 84.7cc beast. Just flat BRUTAL, but way too expensive.

The Venom 45 with the new improvements is a fine engine! And certainly worth more than we are paying for them. You are right about all those "here today, gone tomorrow" engines. There's no shortage of them! From what I've seen, Venom is here to stay. I certainly hope so!

I felt I had to cut Tim some slack! I really worked him over on some recommended changes and was beginning to feel sort of bad about it. So I though I'd pump him up a bit, he deserves it!

(in reply to dhooks)
       Post #: 56

RE: Copperhead Aviation Venom 45-30 - 1/14/2007 6:43:03 PM   
dhooks



Posts: 1043
Joined: 10/7/2002
From: Lake Butler , FL, USA
Status: offline 		The 385 is like a $600 saw isnt it?

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RE: Copperhead Aviation Venom 45-30 - 1/15/2007 7:25:57 PM   
mfuess



Posts: 402
Joined: 9/5/2002
From: Bedford, TX, USA
Status: offline 		Yes, it's an expensive saw! It took me a long time to consider tearing it apart!

(in reply to dhooks)
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RE: Copperhead Aviation Venom 45-30 - 1/15/2007 9:21:44 PM   
Mitsu1



Posts: 577
Joined: 11/5/2002
From: Dumas, AR, USA
Status: offline
quote:

ORIGINAL: mfuess

Hey Skyburner!

I will be reviewing the 30 with BOTH mechanical & electronic, just because I have both ignitions available. After bench-testing & break-in, the engine it is going into a World Models ULTIMATE Biplane (90 sized) for a real workout!


Mark


90 sized World Models Ultimate? Do you mean their 120R sized bipe with 53.5" span? I was considering their 50cc size 27% Ultimate with 63.5 in. span and 1420 squares for my Precision Eagle 70cc engine, but just thought it was too much engine for this airframe. If you're gonna put a 1.8 on a .90 sized plane ... maybe I CAN get away with putting a 4.2 on 3.2 Ultimate???

(in reply to mfuess)
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RE: Copperhead Aviation Venom 45-30 - 1/16/2007 12:46:01 AM   
mfuess



Posts: 402
Joined: 9/5/2002
From: Bedford, TX, USA
Status: offline 		You won't have any problems. Just make sure the firewall is glassed. You know, my Monster Pitts is a 90/1.20 sized biplane with only 1089 sq. in. wing area. And it's been powered with a BME 50, and several other big engines including my current engine, the Venom 45. It's no big deal as long as you beef up your airframe to support your engine and the stress it'll generate. With the size your looking at (1420 sq.in.), I'd consider 70cc as a minimum engine.

(in reply to Mitsu1)
       Post #: 60

RE: Copperhead Aviation Venom 45-30 - 1/16/2007 4:06:31 PM   
mfuess



Posts: 402
Joined: 9/5/2002
From: Bedford, TX, USA
Status: offline 		It's the PITTS!

My Venom Pitts muffler was a little too big for my Monster Pitts Cowling, so I went into "hack n' slash" mode and changed it.



This fits a whole lot better, and I get that deep tone I like. The Bennett muffler (for a Sachs 4.2) worked OK, but it was loud... VERY loud. At full throttle it was cranking out 128db at 2 meters! The Venom Pitts muffler is a comfortable 118db at 2 meters and has that deep throaty sound.

It was easy to cut and weld. Maybe we can con Tim into making this change...

< Message edited by mfuess -- 1/17/2007 12:13:32 PM >

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RE: Copperhead Aviation Venom 45-30 - 1/17/2007 10:44:38 PM   
CopperheadAV



Posts: 539
Joined: 12/12/2005
From: Zhong Shan,Guang Dong, CHINA
Status: offline 		We are working on various styles of mufflers as well as tuned pipes. I like you solution of cutting off the corner, Nice Job Mark!!

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RE: Copperhead Aviation Venom 45-30 - 1/17/2007 10:51:58 PM   
Mitsu1



Posts: 577
Joined: 11/5/2002
From: Dumas, AR, USA
Status: offline 		Seems cutting the other corner would aid a tapering cowl better than the rear in most cases wouldn't it?

quote:

ORIGINAL: mfuess

It's the PITTS!

My Venom Pitts muffler was a little too big for my Monster Pitts Cowling, so I went into "hack n' slash" mode and changed it.



This fits a whole lot better, and I get that deep tone I like. The Bennett muffler (for a Sachs 4.2) worked OK, but it was loud... VERY loud. At full throttle it was cranking out 128db at 2 meters! The Venom Pitts muffler is a comfortable 118db at 2 meters and has that deep throaty sound.

It was easy to cut and weld. Maybe we can con Tim into making this change...



< Message edited by Mitsu1 -- 1/17/2007 10:52:38 PM >

(in reply to mfuess)
       Post #: 63

RE: Copperhead Aviation Venom 45-30 - 1/17/2007 10:56:09 PM   
CopperheadAV



Posts: 539
Joined: 12/12/2005
From: Zhong Shan,Guang Dong, CHINA
Status: offline 		Yes I agree. I have a PA edge 540 - 28% I use for testing. I had to hog out quite a bit from the cowling in the front.

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www.copperheadaviation.com
www.rcmanufacturing.com

(in reply to Mitsu1)
       Post #: 64