Vintage Windmill and Wind Generator Forum

Velocity is a major factor in a horsepower calculation. Crank up the rpm and horsepower skyrockets but windmills don't go so fast.

That would be Alaska Marine Highway, the state ferry system. All 12 ships at 20,000 tons or less, as I recall the Columbia was right at 20k. I worked in harbor and facilities engineering, some for a Naval Architect in Tacoma and San Francisco shipyards. I had lots of varied opportunities, being able ...

I realize this is an old topic...

Google "bubbler gauge". Only requires a single small tube submerged in the water, a pressure gauge and a source of air when you want to measure it. Air pressure clears the water out of the tube, shut off air and measure the remaining pressure inside the tube ...

Has anyone ever seen a windmill like this? Article I found in Popular Science from 1920, https://books.google.com/books?id=9CkDAAAAMBAJ&pg=PA21. Says this type windmill was popular in Argentina.

Another note....Stover is famous for a weakness in the braking system which results in the breaking of the pivot arm on the snout by the brake itself. There is NO takeup spring in the system, so when you pull the brake on, if you pull too tight, that little pivot arm breaks every time. I have put ...