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THE YELLOWTAIL WINDMILL 

* Yellowtail Windmill online here   

 

The Yellowtail was originally known as the Metters "M" windmill. This was developed in the late 1950's from the older "K" and "Nu-Oil" models that Metters had made since the early twentieth century.

The Yellowtail was also known as the MBP model "M", but was renamed in the early 1980's with a name which reflected what it was popularly called.

The Yellowtail has now been in production for more than forty years.

 

The Yellowtail features

 

  • Rugged Windwheel - The Yellowtail features a tension Windwheel that turns in the lightest breeze, yet is rugged enough to withstand gale force winds
  • "A" Frame Wheel arms - Strong one piece "A" frame wheel arms are easier to assemble, hold more securely to the hub and hold the Windwheel section rigidly in place.
  • Built in Sails - The galvanised steel sails are laced into the tension Windwheel and are spaced, shaped and curved for maximum pumping efficiency over a wide range of wind speeds.
  • Twin Pinions - Carbide gear teeth ensure long-life, and pinions will not loosen or allow the large gears to work out of alignment.
  • Double geared - with in-built speed control and manual shut-off.
  • "StormProof" - The simple govering system automatically protects the Windmil tower in high winds
  • Self maintenance - Automatic lubrication for all moving parts ensures long life and low maintenance.
  • Long Life Replaceable Bearings - The main casting of the gearbox is line bored and fitted with long-lasting replaceable bearings
  • Safety ladder - A turntable inspection ladder is fitted to the 10-14ft models that rotates 360º with the Windmill

 

 

 

 

 

 

The Wheel Arms, or Spokes, are built as a one piece "A" frame to make assembly easier, and to give  a more rigid structure to the Windwheel. Sails on the Windwheel are built around the outer ring to ensure they will not work loose. The entire Windwheel bolts together under tension to create a tight structure that will withstand gale force winds. 

All Yellowtail Windmills now have Steel Platforms.    Extra girts now provide 360 degree access to the platform.

 

 

 

 

Yellowtail Windmill - Pumping Performance 

(based on 10 hours of wind per day)

 
Pump Size Inches 2" 2.1/4" 2.1/2" 2.3/4" 3" 3.1/2" 4"
Pump Size Millimetres 50.8mm 56.3mm 63.5mm 69.8mm 76.2mm 88.9mm 101.6mm
6 ft (1.8 Mtr) Feet 71 61 49 40 34 28 25
  Metres 22 19 15 12 10 9 8
  Avg Gallons per day 1100 1530 1750 2110 2475 3410 4400
  Avg Litres per day 6000 7000 7950 9590 11250 15500 20000
8ft (2.4 Mtr) Feet 127 102 86 72 62 44 35
  Metres 39 31 26 22 19 13 11
  Avg Gallons per day 1320 1860 2090 2540 2970 4125 5280
  Avg Litres per day 6000 8456 9500 11550 13500 18750 24000
10ft (3.0 Mtr) Feet 265 233 206 161 139 99 73
  Metres 81 71 63 49 42 30 22
  Avg Gallons per day 1540 2145 2420 2970 3465 4785 6160
  Avg Litres per day 7000 9750 11000 13500 15750 21750 28000
12ft (3.6 Mtr) Feet 292 255 233 199 169 139 112
  Metres 89 78 71 61 52 42 34
  Avg Gallons per day 1650 2287 2585 3180 3700 5115 6500
  Avg Litres per day 7500 10400 11750 14450 16820 23250 29550
14ft (4.2 Mtr) Feet 385 314 282 245 201 169 134
  Metres 117 96 86 75 61 52 41
  Avg Gallons per day 1705 2385 2668 3285 3823 5280 6820
  Avg Litres per day 7750 10840 12130 14934 17380 24000 31000


 

Flow Rates for Yellowtail Windmills
Expressed in Litres per Minute

Strokes

Per Minute

2”

2¼”

2½”

2¾”

3”

3½”

4”

34

8.48

10.64

14.33

16.62

19.08

27.47

33.91

32

9.99

12.53

16.88

19.58

22.48

32.37

39.96

26

9.55

11.98

16.13

18.71

21.48

30.93

38.19

23

8.45

10.59

14.27

16.55

19.00

27.36

33.78

20

7.23

9.06

12.21

14.16

16.26

23.41

28.90

 

The above table shows the flow rates for each size windmill for the different pump sizes shown. The flow rate is in Litres per Minute and is based on a wind speed of 7 Metres per second.

 

You can purchase a Yellowtail Windmill complete with a tower or head only in the On Line Shop


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