Windmills

W.D.Moore & Co. has been in the windmill business since the 1890's. Whether your pumping need is for livestock, irrigation, household, de-watering, or a garden water supply, W.D.Moore & Co. has experienced staff to help you with the right choice.Today the company offers two models of windmill :- 

• The Yellowtail
  
• The Aermotor
   

The Yellowtail is manufactured by W.D.Moore & Co. and includes many fine features that make it one of the longest lasting windmills ever produced. The Aermotor is imported, its design being based on the Aermotor 702 model of old.
 
Windmills are proven technology that offers superior benefits over any other pumping system. They can operate in conditions that other systems find impossible, but best of all they outlast all other mechanical methods of moving water. Their demand for maintenance is less, the range of application is greater, anyone can install them, and they use no fuel.

For an obligation free quote on a Windmill system, fill out our Site Details Questionnaire at the Enquiry Hotline.

We will give you a detailed quotation outlining all the components required for the perfect installation for your site.

Where can a Windmill be used?

Windmills can be used whereever water is required.

• Stock Water - Sheep, Cattle, Horses, etc
• Domestic applications - household water for drinking, sanitation, and washing
• Irrigation - for house and vegetible gardens
• Filling dams, reservoirs, fish ponds, lakes
• Dewatering wet lands
• Removal of salt laden water
• Water for industry
• Waste water removal
• Medication of ground water
• Sewage
• Water for schools, public buildings, recreational areas, etc
• Remote locations

The uses for windmills is only limited by ones imagination. All that is needed is wind.

How much wind do I need?

The wind is a natural resource that is available everwhere. As a general rule the wind blows for between 8 to 10 hours per day, at a speed that is useful for the windmill. This can happen at any time of the day or night - we don't always see the wind blowing.

How do I know how much wind there is?

The following table is called the Beaufort Scale, and is used to assess local wind conditions.

Force	Name	Definition	Speed Range (M/s)	Speed Range (KPH)
0	Calm	Smoke rises vertically	0	0
1	Light air	Direction shown by smoke, but not vane	1	7
2	Light breeze	Wind felt on face, leaves rustle	2-3	14-21
3	Gentle breeze	Leaves, small twigs, & flags in motion	4-5	28-35
4	Moderate	Raises dust and paper, small branches move	6-8	42-56
5	Fresh breeze	Small trees in leaf sway	9-11	63-77
6	Strong breeze	Large branches move, wires whistle	11-14	77-98
7	Near gale	Whole trees move, walking slightly impeded	14-17	98-119
8	Gale	Breaks twigs off trees, walking difficult	17-20	119-140
9	Severe gale	Slight structural damage	21-24	147-168
10	Storm	Trees uprooted, considerable damage	>25	>175

 How much water do I need to pump?

The following table will guide you to determining the volume of water you need the windmill to pump. Use the column titled "Actual Daily Use" to put a number that best suits your need, or use the estimate as a generally accepted number. In the "No. @ Use column put in the number of persons (or animals) using this water supply. Multipy these two columns to determine your daily need. Add up all the numbers in the last column. Once you have added all your "Totals" together you will need to add a safety margin. Usually this margin is between 10 to 50% and it depends on the reliability of the wind resource - a good wind resource will only require a 10% margin, while a light wind regime will need more (to allow for the days when the wind does not blow).

Water Use	Daily Use (Litres)		No. @ Use	Total
	Estimate	Actual
Domestic - Drinking (per person)	2
Domestic - Hygiene, bathing (per person)	10
Domestic - Toilet (per person)	10
Domestic - Laundry (per person)	15
Domestic - Household cleaning	10
Swimming Pool	750
Machinery Wash-down	100
Livestock - Domestic animals	5
Livestock – Sheep	5
Livestock - Cattle (dry)	60
Livestock - Cows (milking)	80
Livestock – Pigs	10
Livestock – Goats	7
Livestock - Poultry (per 100 birds)	40
Livestock - Turkey (per 100 birds)	70
Livestock – Deer	15
Livestock – Horses	50
Livestock – other
Irrigation - Flood (per Square Metre)	25
Irrigation - Sprinkler (per Square Metre)	25
Irrigation - Trickle (per Square Metre)	10
Irrigation - Trees	5
Total - all uses (Litres per day)