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Old 07-03-2009 | 01:12 AM
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doxilia
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Default RE: Picorare Build Thread

The beauty of electric power is that you can drop a couple of lead weight bags on the model atop a stand, mount a prop and blow some serious air around the basement at 1 am! (But lets keep it under 300W shall we!?)

... so that's exactly what I did. Hoping to not wake the kids, I thought I might get a tach reading off the APC 8x6E on 3s. I made sure things were nice and tight and spun the little 28mm up... scary. Good job I turned the model so that the papers were far away in front of it otherwise they would be all over the office [:-].

Of course no tach reading - not enough contrast, but I think it's in the 12K range. Now, if I could only remember how much a piped 15 pulls on an 8x6. Frankly, a piped 15 on a 26 oz model sounds like something I'm not fit to fly. But I still suspect that this e-setup will have the Pico flying vertical straight out of my hand! [8D]

According to Dualsky Calc, we should be spinning at 11,250K with 34 oz of thrust and a pitch speed of 103 km/h Amps at 27.8A and input power at 309W.

Sweet!

I might have to drop to an 8x3.8SF (248W) or an 8x4E (231W). A Graupner 8x6 CAM prop pulls 274W - another longer flight option.

For fun I uploaded a spinup of the motor as a Quicktime file. Right click and save as Pico Motor Runup.mov

Hey guys, I just noticed that PDF uploads are now supported on our forum! Cool. No more switching extensions and they should show up as an icon now.

David.
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