Script of Wing'dmills (WM) 2006  video (download


Click for Script in Spanish.  Full video in Spanish download 43 MB 



1.  Intro to all Wing’d Mills



Suppose you want to pump water or air far from the grid. To use steady but light winds needs a ton of multiblade windpump and a crane to put it 30 feet up. Consider instead our uniblade Wing’d pump of much lower weight. You solo can install it to pump much more in soft winds at half the cost. 


   Our wingblade oscillates about a low pivot, to sweep a large and high sector of wind without the cost and danger of the fanmill’s tall tower. Its low bearings are much easier and safer to lubricate.    A 2 knot gust starts our flutter  with the tailheavy wing flipping from highest to lowest . But here the 15 knots of wind is damping the flip in half, safely limiting the wing's lift. Higher winds damp the flip, and so any oscillation to zero. Thus the wing is feathered and safe in this 40 knot storm. But to avoid too much drag and rpm, a fanmill needs extra mechanisms to yaw and brake it sideways to a gale. A Wing’d Mill can be stopped at anytime by just pulling the wire to the red lever to null the wing flip. Then this frame swings down to lock the pendulum for climbing to inspect and grease its bearings. Any overswing of the pendulum also tensions the wire to reduce the wing flip, and so the next swing,


Should the pump valves fail, and our wing try to swing even farther, the yellow latch catches and holds it safe. This signals for miles to fix the pump. Instead a rotor just keeps on cranking a broken pump, fooling the farmer and wearing away. When a hurricane with its flying debris is forecast, remove some counterweight, disconnect the winch and lever, and overswing the pendulum to remove the wing easily by hand from ground level. The bare latched pendulum then serves as a gin pole, for raising and lowering our low well tower with only a hand cablepuller.


A rotor has a fixed crank and pump stroke: too long for too big a peak torque to start against in light winds; but once started by a strong enough wind, too short to capture the most of its power. Annually a fanmill can only usefully pump just 1/10 of the ideal windmill work on a cubic and uniform rotary load. The oscillating uniblade is a much better match of the ever-varying wind to single-acting pumps against fixed pressure. The pump stroke of our winch with its spiral coils, varies strongly with almost the cube of the swing, not loading a starting swing in only 2 knots, but still absorbing all the wind-power swept in a big swing in a good wind. Wing’d stands for Wind Wing Winding.


Comparing pumped Watts versus windspeed, the Wing’d Mills pump twice as much in light winds as the Aermotor multiblade to reduce the size and big extra cost of a sealed reservoir for potable water. Pumping air to high pressure usefully stores 75% of the energy much more cheaply, but increases the peak torque block to a fanmill starting. A scrap motorcycle engine can smoothly compress to 130 psi, when its chain is pulled by our winch, its clutch converted to a ratchet. and its piston extended to push and pull the unsealed rods of opposed pistons in staged, intercooled cylinders. An alternator can be directly mounted on the crankshaft open end, to charge batteries doubling as counterweight. See the headlamp glow with each 12v charging pulse.


For more voltage and side power, mount a ring gear on the winch shaft and its ratchet starterpinion on the alternator, again sensing rpm with a pickup coil to turn the field on. This add-on can be homemade for a fifth of the cost of a separate windcharger or solar panel. Solar-electric pumping is far too expensive at $70/pumped watt for more than nominal duty. Whilst the Wing’d Mills pump enough to be used for trickle or furrow irrigation of a small farm.


Nothing solar: panels, submersible motors or rotary pumps can be made by artisans. But the Wing’d Mill is simple and cheap to produce. The wing's wood frame is a strong 40 pound truss of light and durable western red cedar. The woven polyethyelene fabric is wrapped around it, stapled at the trailing edge, and heat shrunk. With a coat of aluminum paint rolled on, this very cheap cover will last about 5 years in the sun. 


The pendulum axle is a low cost threaded pipe with used truck bearings. The counterweight can be concrete, or a steel box filled with sand. The tailvanes which yaw the wing and pendulum into the wind are whole sheets of plywood or metal roofing.  All our pumps combine the piston’s valve and seal to avoid it yawing with the wind


Let's look in detail at the different pumps and bases for ponds and wells, that give the uniblade pendulum more versatility than the multiblade rotor.


2. FLO' PUMP (FP) base


On a small lake the FLOating' PUMP can be easily towed to the shore needing the water, and anchored to yaw with the wind. If there is enough wind to ripple the water, the FP pumps, as its submerged cylinder never loses prime. Whereas a fanmill fixed on the shore needs more wind and much more pipe to irrigate the fields around the lake, and its suction pump can lose prime anytime the wind lulls. Nor may floating it eliminate the yaw bearing still needed for its safe furling in storms.


 If our wing swings too far, its tip rod picks up water from the pond, reducing the wing tailheaviness and so its future flips and swings. In this test the water pumped is just dropped back to the ocean. In freshwater service, the whole base would float around the blue PVC pipe above its 3 anchor ropes and its submerged output pipe to shore. Inside the lower half of the PVC, the drag of the heavy piston falling through the water sucks air into the top of this cylinder through the small white snifter valve. On the upstroke the piston pushes water and this air through the red flap valve in the divider. The upper PVC is sealed into an annular chamber to collect the air which cushions the output of the water through the big lower sideport. When the water level drops the pink float,its valve outlets the excess air is outlet through the garden hose, here as submerged bubbles. This air, up to 1/3 of the total intake, helps to aerate and destratify the pond to improve its water quality. Cattle gain weight faster drinking water lifted from fenced aerated ponds, rather than drinking down at stagnant ponds they can cave-in, foul and infect their hooves in.


For injection in deep fish ponds, air from the winch compressor can be stored inside steel pressure cylinders doubling as the FP's pontoons. Otherwise, the floatation can be styrofoam for moving the FP between small ponds; or just raw logs for a bigger lake with a steady wind direction. For its cost, the FLO'ating Pump of water out and air in is the simplest most powerful pond windmill ever. The design could be inverted so a fiberglas blade sweeps back and forth to use a river or tidal current to pump or compress.


3. Flutterwell (FW) and PipePump for Drilled WELLS


For potable water and in arid zones, the same WM wing and pendulum can be used to pump groundwater in light winds more economically than the multiblade. The Flutterwell mounts directly on the steel well casing with a hinged joint for very easy raising and lowering. A surface slab with guys can be added to reinforce the casing and the joint.


The coiling of the pump belt permits very long strokes through the yaw taper roller bearing, overcoming any stretch of the pumpwire and reducing the diameter and cost of the droppipe. Whereas a stroke cranked by a rotor, must be much smaller to pass through its yaw hole, and not to descend faster than it can fall. Then transmitting it down the well needs rigid pumprods and droppipe. For maintenance, many hands are needed to lift and hold each very heavy series, whilst carefully unscrewing each emerging length of rod and pipe.


The hydraulic return of our Pipepumps is fast enough for the FW’s large strokes or for treadling by one adult or two children. Just pull our continuous pump wire up past its normal stroke, to release the water column and retrieve all the seals and valves. You could then handpull the empty polyetheylene droppipe and its cylinder out to clean the inlet filter, but the hydraulic return has backwashed it every stroke. After changing worn seals, just lower the pipe plunger down the well to resume pumping instantly.


The pump wire can pull sideways from the windmill on high exposed ground to a lower well near buildings or trees. Or bouyant, low stretch rope can run to an outside well from a treadle inside a cabin, through the delivery pipe, which would be buried below freezing level. The pulley in the T comes out for removing the plunger at the wellhead, and the cabin pulley cage is also force fit in the elbow. The Pipepump rests below its normal stroke on a clean wear-free static seal that can retain the water column for weeks between pumpings.


Here the FW pumps the clean potable ground water 20' high (before draining it back to this low yield test well). The vinylsheathed stainless pumpwire slides through a standard bearing seal at the wellhead. This small compliant seal leaks less with less friction and expense than the multiblade’s stuffing box and polished rigid pumprod.  Outputing to snifter and check valves and then a tubeless surge tank at the wellhead, the Pipepump automatically ADDS one third air to its stroke, outputing some air at the water pressure it stabilizes, here 40 psi.


In summary the Pipepump is the easiest deepwell pump ever to install and maintain, especially with the Flutterwell. The Winged Mill water pumps also snift air for cushioning and output, charge up to 36v, and compress air to 130 psi; all in lighter winds at less cost than wind rotors


For more information please contact ....

Dr. Simon Farthing,  Wing'd Pump Associates 975 Tuam Rd.N. Saanich, B.C. V8L 5P2 Canada tel: (250) 655-3872 fax: (250) 655-3045