I have finished the construction of my WS-1000-ARRAY/Osprey solar radiation aspirator. The idea was to create a simple to install, standalone solar powered aspirator. As the solar radiation shield is the same between the WS-1000-ARRAY and the Osprey, I used the solar rad shield parts from my damaged WS-1000-ARRAY in the construction. Here are pics. You might note the pic of the screws. Turns out finding 4" #3 sheet metal screws is a non-starter! Luck would be that the little SYMA S107G tail rotor assembly that I used for its motor and prop gave me the solution as the tail boom was stainless and the EXACT diameter of the #3 screws, I cut the 3" #3 screws and ground down the thread on such that I could insert the two halves of the 3" screw into the tail boom, affixing with JB weld giving me the needed 4" #3 screws! I have done quite a bit of testing on the aspirator and found that it powers up about 30-45 minutes after sunup, assuming no horizon clouds and within an hour even with some slight cloud cover. One of the panel will face east, the other west. The panel are rated at 3V, 70ma and when attached to the motor under bright sunlight, the voltage is 1.25V and the current being pulled is 30ma regardless of one or both panel contributing. The little propellor does NOT create a massive breeze but rather a nice gentle downward draw. Installed, the solar rad stack will be 7 plates rather than the 5 normal ones. I will be pulling the bottom two solid plates off the Osprey and installing the aspirator which consists of 2 hollow centered plates and 2 solid plates. This will ensure plenty of clearance between the temp/humidity sensors and the aspirator propellor. BTW, the inspiration of this was the work that mrwerley did on his Davis Vantage Vue station using the same SYMA motor and prop and his aspirator is still going strong after two years in the Arizona sun! FYI, I coated the entire back side of the solar panels with epoxy to seal them from any moisture as well as to firmly attach them to the bamboo skewers.
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