Jay Novak sends this:
NACA duct
added the more generic spreadsheet link
Quote:
Hi Bill,
I have had a NACA duct calculator spreadsheet that I made up years ago. I have tidied it up & would like to share it with the forum.
The actual calculations are derived from curve fits of several optimized NACA ducts. I have been using it for years & it works. It is in Excel (office 2000). Maybe it should be saved in an earlier version. It is pretty self explanatory, but if you can think of any ideas to make it more usable let me know.
PS. It is currently write protected, but no password.
Thanks ... Jay Novak
NovaRace Inc.
NACA duct
added the more generic spreadsheet link

















