Q&A

Ask a question / get an answer

This Q&A page is for those who have a question about the little shop beyond anything I’ve posted so far. Feel free to ask and/or respond to questions on this page. You must be registered to take part in the conversation.

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10 thoughts on “Q&A”

  1. 1. What is the difference between Freedom I and Freedom II?
    They are both alternators…correct? (meaning AC output)

    2. What are the finished product dimensions…height, length, width (or diameter)? With base.

    3. Weight of finished product?
    …With base.

    4. Power output? (Can I assume that maybe FI and FII are different in that respect?)

    5. Minimum operating wind speed and corresponding output?

    6. Is there a Maximum wind speed output? … and are there safety considerations at maximum?
    (I’m in California… in an area where the occasional Santa Ana wind gust can max at 70mph.)

    Also your finished product design looked like it could fit into a refrigerator sized box (or container). Would you agree?

  2. 1. What is the difference between Freedom I and Freedom II? They are both alternators…correct? (meaning AC output)
    _They both put out wild AC current that fluctuates with RPM or wind speed. This AC is not compatible with the AC in your home, but must go through a rectifier and voltage regulator before use or storage.
    _Also the difference between the Freedom 1 and the Freedom II is; the freedom 1 is single core, and the freedom II is a dual core. The advantage to using a dual core pma/pmg is the output of each core can be connected in series to double voltage output.

    2. What are the finished product dimensions…height, length, width (or diameter)? With base.
    _The one I built for sale and the one I use myself are about six feet tall from the floor to the top of the turbine. But, base mast heights are optional.
    The turbine diameter is 31 inches and the base footprint is 36 X 36 inches.

    3. Weight of finished product? …With base.
    _The turbine weighs-in around 12 to 13 lbs.
    The base weighs about 25 lbs.
    The Freedom mounting bracket weighs about 7 lbs.
    And I think the Freedom II weighs about 35lbs.
    My total guesstimation is about 80 lbs?

    4. Power output? (Can I assume that maybe FI and FII are different in that respect?)
    _Yes, the freedom II will have double the output of the freedom 1. Double the amps if connected in parallel or double the voltage if connected in series.

    5. Minimum operating wind speed and corresponding output?
    _The answer to this question would be much more accurate and complete if I had access to a wind tunnel. The one I’m using at home starts turning in a 3 mph breeze and is creating 30 to 35 watts in a 5 to 6 mph breeze. That’s about all I can say with confidence.

    6. Is there a Maximum wind speed output? … and are there safety considerations at maximum?
    _I don’t know what the maximum wind speed the Stealth VAWT can take, but it has survived without issues wind gusts up to 80 mph on a few occasions at my location.
    But in those moments of highest wind speeds I wasn’t anywhere near the power meters, so I don’t know how it performed in power production.

    Also your finished product design looked like it could fit into a refrigerator sized box (or container). Would you agree?
    _I agree, it would be close to a refrigerator sized box.
    If necessary or requested I can build a crate/shipping container to get the completely assembled unit to you safely. Unfortunately I have no idea what the shipping charges might be on a container of that size and weight.
    “In the future”. “If this business is to take off”. Eventually I plan to purchase a nice pickup truck which I can use to deliver these turbines in person. The idea is to deliver as soon as I can, then stop and fish a little on the way back home. I haven’t had a vacation since 1992 and I’ve been looking for an excuse to escape for a few days if I can.

    • Hello Martin,

      Sorry its taken a while. I thought it was ready for boxing up for shipment a few days ago, then I realized I had made the center tube wrong on both of the new center tubes I had just made. So I’m in the process of making three more. Each tube takes quite a bit of time to machine and put together. Other issues have been, waiting for materials, too much rain, too much sun, and an allergy to Oreo cookies I didn’t know I had. Just in case you’re wondering, after receiving the aluminum for the new longer blade design, I’ve decided they will be too heavy use on the direct drive units like those I have been making. Therefore the old style will remain the standard for direct drive, and the longer blades will debut with belt driven thingamajig I’ll be playing with once these orders are complete.

      If you’ll allow me a little more time, I should be contacting you in a day or two about shipping.

      Andrew Sansom

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