Muammer Yildiz Magnet Motor

[MileHigh]

Chet:

I agree with you that you can do tests with the same propeller prop.  It looks like a prop for a very large scale model airplane.  Without the manufacturer and part number though, you can't do much.  I doubt Sterling will get that information off of Yildiz.

The claim by Yildiz that the fan load for the demo at the Geneva Inventor's Expo would be 380 watts is clearly a huge in-your-face lie.  Why does the free energy community accept this junk all the time?  That's a rhetorical question.  Sterling can be so "disconnected" sometimes.

Today was a bust.  The rest of the show doesn't matter anymore, the fan load is not expected to change.  So we are left in shiny happy land for the next few days.  Perhaps somebody in the next booth over has a good deal on crystals???

MileHigh

[ramset]

MH
Anything that we can do at this point to qualify that blades load value will go a long way towards
explaining "the rest of the story".........


thx
Chet 

[MileHigh]

Chet:

Thee is nothing to explain.  By my eyeball the mechanical load of the fan is somewhere in the region of five watts or less.  The numbers have already been crunched on PESN.  Lithium-ion batteries if placed inside that motor chassis could power a 5-watt load for weeks and weeks.

MileHigh

[TinselKoala]

Yup.

BTW MH the method I outlined is perfectly valid and has been used by "professionals" to determine the power dissipation of model airplane propellers. I can't find the original scholarly paper on the topic right now, but while searching I found these other documents that might be of interest.

http://www.peninsulasilentflyers.com/sites/peninsulasilentflyers.com/files/documents/Tom_Hunt_prop_info.pdf
That one is a powerpoint slideshow that talks about propeller parameters and how to calculate some of them, roughly.

http://dc-rc.org/pdf/Model%20Propellers%20Article.pdf
That one has more than anyone might reasonably expect to need. Starting at around Page 8, you will find the necessary formulae to make a very intelligent "guess" at the power necessary to turn that prop of Yildiz's.

I'd say 5 or ten Watts at 2600 RPM isn't too out of line. It certainly does NOT take half-a-horsepower to do it.

ETA: I just checked the specs for a TRex 450, a popular electric heli design. It is supposed to draw 8 amps from an 11.4 volt LiPo when hovering. So it's making enough thrust to offset its nearly 1 kg weight, turning a tail rotor thru a belt-drive system, powering a radio and 4 servos, and spinning a 690 mm diameter rotor disc at 2200 rpm. All on a bit over 90 Watts.
Yildiz's prop is at most 300 mm, probably more like 250 mm.

[MileHigh]

TK:

You are right, I hadn't thought about the whole panorama of research into propellers, and measurements on propellers.  I still have to remind myself that they use electric motors these days.  I only ever fantasized about RC planes.

It's still "fun" to think about using scales though.  When I get reincarnated as Richie Rich I will have a big lab with all the fun stuff and I will invite Dot over.

MileHigh