3.0 meter Wind turbine test as brushless motor

[1foxtrot70]

I have a 1938 ver. of a Jacobs Model 60B. It is a 2.4Kw selectable voltage and current 120/60vdc @ 20/40A generator; one of its features is that it has mechanical variable pitch adjustment of the blades with a centrifugal weight arrangement on the hub. Cut-in is ~ 2m/s & the unit is set to a max rpm of 240rpm which = 24 mph or 10.7m/s. It also has tail furling for heavy storm conditions. If you would like to see some pics of it send me a msg with your email and I'll send a pic spread.

[eloid777]

why not just use a furling tail

[Jonblissett]

@eloid777 In short you can get better efficiency with variable pitch.

[natedogg1026]

Sounds like somebody's a smart cookie. Sweettttttttttt.

[cadfael9798]

XLNT work Jon, you're one damn good technician!

Like Nate says, ....Flog 'em!!

[natedogg1026]

That's bad ass! Cant wait to see it fly. Is the blade adjustment automatic or manual? You should market these. Great work.

[Jonblissett]

Blade adjustment will be automatic. It will use a stepper motor to drive the blades via a worm gear and bevel gears....I'll post a video of this.

The stepper motor will be controlled from a PIC Microcontroller using the frequency of the AC output from the generator to determine what angle of attack the blades should be set at.

[bg0821]

Excellent! 5 stars! looks like something high tech space age futuristic machine! I have the same neodymium magnets and want to do a build with those 2x1x1/2 inch ones. casted in resin as well.