Author Topic: TSR? for ED.  (Read 1289 times)

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Jerry

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TSR? for ED.
« on: December 25, 2006, 03:56:33 AM »
I had asked you what the TSR was for my blade at 46 inches then you said between 6 to 7 TSR.  But if you don't mind what would be the TSR at 49 and 61 inches.


Same root angle of 23 degrees and just a coulpe degrees at the tip?


Thanks ED or anyone that has the answer.


            Merry Christmas.


                                 JK TAS Jerry

« Last Edit: December 25, 2006, 03:56:33 AM by (unknown) »

windstuffnow

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Re: TSR? for ED.
« Reply #1 on: December 25, 2006, 08:21:14 AM »
  With a 2 degree tip angle you probably looking at a TSR of around 6 for either the 49 or 61" blades.  


  What are you working on?


.

« Last Edit: December 25, 2006, 08:21:14 AM by windstuffnow »
Windstuff Ed

Jerry

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Re: TSR? for ED.
« Reply #2 on: December 25, 2006, 11:12:51 AM »
Hi Ed.


Nice of you to respond on Christmas. I'm building a 4 ft Hugh machine. I'm building it to his specs.


A freind is carving the blades for it as per Hughs instructions. I'm setting up a small wind tunnel test and wish to compair preformance of several styles of 4 ft blades.


I will also be evaluateing several diferant styles of stators. I purchased his book and the magnets from our hosts. I've collected all the materials, now just to find the time for assembly and testing.


I belive Hugh says his recemended carved wood blade has a TSR of 5. I think TSR of 5 is to have an earlyer startup then a TSR of 6?


I hope to do these test over the next few months?


Thanks again for your help and have a very nice Christmas.


                    JK TAS Jerry

« Last Edit: December 25, 2006, 11:12:51 AM by Jerry »