POLDAW 5.0m WINDPUMP

(Approximate outputs in litres per 24 hours)

Total pumping head in metres

Wind-speed in metres/second (miles per hour)

3 m/s (6¾ mph)

4 m/s (9 mph)

5 m/s (11¼ mph)

2

178,700 litres

299,000 litres

419,200 litres

3

139,600

259,800

380,100

5

85,500

161,800

238,100

10

40,800

71,900

103,000

20

20,300

35,500

50,800

30

14,600

29,900

45,100

40

9,700

16,500

23,200

50

8,400

15,200

22,000

60

6,700

11,700

16,700

80

4,900

8,300

11,800

100

3,000

4,700

6,300

120

2,100

3,800

5,400