Hi;
I would like to know more about the Harry Riblett 35-415, and what all of the numbers mean.
I was told that 35 means percentage aftward from leading edge to the thickest part. True?
The same source mentioned that the 15 means 15% thickness ratio. Again, true?
But what does the 4 mean?
And, importantly to me, where could I get a good accurate drawing of this airfoil shape? I did read the article that I found on Google from Orion Industries (Bill Husa), and it's pretty informative, but I need a tad more info. Gee, is that you Orion?
Are there opinions on this airfoil for homebuilt use, such as low speed handling, or in speeds up to around 200 MPH, or stall characteristics? How sensitive is it to small errors when a builder is making the ribs and then skinning the wing? I have heard, for example, that Mustang and other laminar wing shapes must be made very precisely to not lose any intended laminar-flow advantage.
Thanks again, Tom.
I would like to know more about the Harry Riblett 35-415, and what all of the numbers mean.
I was told that 35 means percentage aftward from leading edge to the thickest part. True?
The same source mentioned that the 15 means 15% thickness ratio. Again, true?
But what does the 4 mean?
And, importantly to me, where could I get a good accurate drawing of this airfoil shape? I did read the article that I found on Google from Orion Industries (Bill Husa), and it's pretty informative, but I need a tad more info. Gee, is that you Orion?
Are there opinions on this airfoil for homebuilt use, such as low speed handling, or in speeds up to around 200 MPH, or stall characteristics? How sensitive is it to small errors when a builder is making the ribs and then skinning the wing? I have heard, for example, that Mustang and other laminar wing shapes must be made very precisely to not lose any intended laminar-flow advantage.
Thanks again, Tom.
