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"M 14" giant 3D model

Old 10-28-2003, 11:37 PM
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Bill Mixon
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Default "M 14" giant 3D model

Cool, an electric 3D forum.

Here is a picture of one of my latest 3D planes.
Spans just under 90"
approx 1600 sq" wing area
10 lbs +- ready to fly

Bill
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Old 10-29-2003, 12:43 PM
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bach939
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Default RE: "M 14" giant 3D model

What is your power setup?
Old 10-29-2003, 07:09 PM
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Bill Mixon
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Default RE: "M 14" giant 3D model

Oh, yea
Forgot the power system specs.

Hacker C50 Acro 12XL 6.7:1 drive.
APC 24 X 12 E prop
77 3p opto speed control
20 HRSC 2600 NIMH cells
Old 10-30-2003, 05:30 AM
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Henke Torphammar
 
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Default RE: "M 14" giant 3D model

Cool Bill!!!

do you know the amps? my 14XL pulls 62A from 28cells
Old 10-30-2003, 12:37 PM
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Bill Mixon
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Default RE: "M 14" giant 3D model

Hi, Henke

No, I don't
I haven't bought one of those nice watt meters yet so I'm not real sure.
According to my calculations though, figuring flight time-battery capacity..
I'm pulling about 20 amps at input required to hover, and max amperage in the low 50's.

Plane cruises around at 25% power and flies at a top speed of just under 60 mph. That's at full power in level flight.

Are you running the 24 X 12 on your setup?

Bill
Old 10-31-2003, 04:47 AM
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Henke Torphammar
 
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Default RE: "M 14" giant 3D model

[X(] 60 is fast! really cool!

I run the 24x12 too. thinking 8S is enough (~28 round cells) no need to go for more then 2:1 thrust weight ratio

how does it compare to Gary´s XL?
Old 10-31-2003, 07:18 PM
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Bill Mixon
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Default RE: "M 14" giant 3D model

how does it compare to Gary´s XL?
Almost identical in weight, size, probably fly similarly.
I do have a CG problem on the M 14 though, it's slightly nose heavy.
Also, I haven't pushed the M 14 through anything highG like blenders, parachutes, etc.. Im not sure about the structural integrity of the wings and would rather not find out what it takes to break them. So I have been flying it conservatively.
I hover it a lot, it does really good at the high alpha stuff. No wing rocking, and no flap mixing required.

Might be building a new set of wings for next year, so I can really see what it will do.

Bill

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