Delta Junior 
Harnessing The Wind With Simplified Technology For the Future
We purchased and used this windmill last winter to pump into a 6' stock tank for 50 cows. It's simple design worked well and held up to Kansas winds.
Patrick & Jane MacDonald
| Turbine Type |
Upwind |
| Rotor Diameter |
8' |
| Rotor Design |
Perimeter Blade |
| Stroke |
3" |
| Blade |
Design Delta with trailing edge flap for low speed performance |
| Number of Blades |
24 |
| Blade Material |
Galvanized Steel |
| Tower Height |
11.5' to the hub centre for 10' tower |
|
21.5' to the hub centre for 20' tower |
| Height to top of Blades |
15.5' for the 10' tower |
|
20.5' for the 20' tower |
| Weight of Tower |
105 lbs. (3 pieces) for the 10' tower |
|
210 lbs. (3 pieces) for the 20' tower |
| Transmission |
Direct Drive (no gears) |
| Gear Ratio |
1:1 |
| Furling |
Automatic self governing adjustable tail vane controls speed but never stops pumping |
| Furling Commences |
at 36 kph or 22 mph or 10 m/s |
| Cut in wind speed |
4.5 mph or 2 m/s |
| Lift |
Counter Balanced |
| Foundation |
3 Footings (6" dia. X 60: deep) |
| Finish |
Powder Coated |
| Water Pump Capacity |
Approx. 10 g.p.m. depending on wind speed & pump size |
| Air Pump Capacity |
5 CFM @ 10 psi |
Delta Junior Air Pump Kit Accessories
- Includes Tilt_down Tower and Delta Jr. Head #800
- Air Pump Kit only #810
- Water Pump Kit #830
- Water & Air Combination Kit #850
- ½" Black Hose
- ½" Brass Check Valve
- ½" Bronze Breather
Water Pump Kit Accessories
- Solid brass shallow well cylinders available
- Poly black pipe
- Water check valves
- Sucker rod
- Float valve kit
- riser pipe
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