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-   -   Engine v's Engine Help! (https://www.rcuniverse.com/forum/gas-engines-142/5440716-engine-vs-engine-help.html)

cwalsh 02-19-2007 09:41 AM

Engine v's Engine Help!
 
Hi,

I will soon buy either a QQ 86" Yak or a EF 88" Yak, my question is what engine for either plane (for all out 3D) MVVS45 or DA50?

Assuming both will run a pitts muffler.

I am not trying to start a war here, just get some performance/operation feedback, in relation to either airframe.

Thanks in advance for your help,

C.


AirWizard 02-19-2007 10:10 AM

RE: Engine v's Engine Help!
 
Loaded question!!!!!

I like the DA 50R BUT I'm going to put a Brillelli 366GT "60cc" on my EF 88" Yak

BaldEagel 02-19-2007 10:44 AM

RE: Engine v's Engine Help!
 
cwalsh

The QQ 86" is fitted out for a cannister muffler, and the MVVS 45 needs a cannister it will not produce full power with a pitts type muffler, gained 1100rpm with the cannister.

Mike

cwalsh 02-19-2007 03:37 PM

RE: Engine v's Engine Help!
 
Hi BaldEagle,

Thanks for the info, I know the QQ has a tunnel (I think that the EF will also). Did not know that the MVVS needed a pipe, was under the impression that a pitts would be fine. Does the DA benefit from a cannister? (not concerned with noise)

Assuming both engines have a cannister, which one is the best choice for the aircraft in question?

Thanks!

C.

Jake Ruddy 02-19-2007 04:09 PM

RE: Engine v's Engine Help!
 
Personally I would be holding off to see the video of the Brillelli 60 on a pipe.

If you look at the extremeflight site you will see video with the DA 50 on a pipe.. the B 60 will be even better. MOst engines gain 300-500+ rpm on a pipe.



edit: Here is the link to the build thread.. ( should be done tonight ) http://www.rcuniverse.com/forum/m_5342415/tm.htm

Bass1 02-19-2007 04:23 PM

RE: Engine v's Engine Help!
 
A guy in my club had a QQ yak with a DA 50 and wrap around pitts. It was an awesome flying airplane. Which reminds me, Make sure your servo arm screws are tight and secured![X(]

Tired Old Man 02-20-2007 12:06 AM

RE: Engine v's Engine Help!
 
They're both good choices. Pick the one that works out the lightest and the least expensive when all is said and done.


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