Modeltech Mach Racer Delta  
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Modeltech Mach Racer Delta - 7/14/2008 2:20:19 AM   
*BUBBA*


 

Posts: 21
Joined: 12/4/2005
From: Camarillo, CA, USA
Status: offline 		Hey guys,
Well here i am, once again without the knowledge to know how to complete my project. I am looking in to the Mach Delta racer by modeltech, and I would like to know if the powerplant I have is enough, the motor I am using is a Multiplex Bl-480 6d (i know its not used very often) on a 3s lipo, its spinning a 6x5.5 apc prop. From what I've calculated its pulling about 25 amps and it has about 40oz of static thrust. How can I tell if this is enough to fly the plane? I'm not too worried about speed, but I would hate to spend the money and have it underpowered.

Heres the a link to the plane http://www.hobbypeople.net/gallery/123780.asp

Hope you can help.... Thanks
       Post #: 1

RE: Modeltech Mach Racer Delta - 7/14/2008 2:23:58 AM   
jumper666


 

Posts: 247
Joined: 7/14/2006
From: N. Richland Hills , TX, USA
Status: offline 		50 - 70 watts/lb = min for light park flyers
70 - 90 watts/lb = trainer and slow flight
90 - 110 watts/lb = sport aerobatic & fast scale
110 - 130 watts/lb = advanced aerobatic & high speed
130 - 150 watts/lb = light 3d and ducted fans
150 - 200+ watts/lb = unlimted 3D

(in reply to *BUBBA*)
       Post #: 2

RE: Modeltech Mach Racer Delta - 7/14/2008 4:23:11 AM   
tIANci



Posts: 8449
Joined: 1/15/2004
From: Kuala Lumpur, MALAYSIA
Status: offline 		Bubba ... with your proposed set up you will be lucky to get her to lift an inch off the ground. The Mach Racer is a speedy plane on a 46 sized glow motor. The power you giving on your motor set up is like a 15-20 sized motor. For me if I were to covert the MachRacer it will be turning a 12x10 prop at high RPMs, at least 6,500 if you want some decent speed, 8,000 RPM would be good. That will mean the system is pulling about 1,000W on a 5S set up. Pulling and not at the prop ok.

Why the 12x10? Because the plane is built for a 46 motor, usually 10" or 11" props, a 12" will clear for sure. I would go with a 4S set up as a minimum ... if you want to get crazy then a 5S set up.

Motor would be something like the AXI 2826 series, the 2826/10 for 4S perhaps. I used a DualSky 4260-5 on 5S with a 12x10 for really fast flying fun, it can kill the motor but then so what, since its cheap anyways.

_____________________________

Its nice to be important, but its more important to be nice ...
www.rcheadz.com

(in reply to jumper666)
       Post #: 3

RE: Modeltech Mach Racer Delta - 7/19/2008 6:36:24 AM   
*BUBBA*


 

Posts: 21
Joined: 12/4/2005
From: Camarillo, CA, USA
Status: offline 		Wow, thanks for the replied, I had the power system already and was just seeing if this was even a plausible choice, thanks for the input, as it probably saved me some money...

(in reply to tIANci)
       Post #: 4

RE: Modeltech Mach Racer Delta - 7/19/2008 9:20:53 AM   
tIANci



Posts: 8449
Joined: 1/15/2004
From: Kuala Lumpur, MALAYSIA
Status: offline 		Anytime Bubba ... the internet is a great thing ain't it?

_____________________________

Its nice to be important, but its more important to be nice ...
www.rcheadz.com

(in reply to *BUBBA*)
       Post #: 5

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