Fw190 & Ta152 Wing profile Question - Aircraft of World War II

Hugh_T · 06-26-2009, 08:26 AM

According to the NACA references, the accepted wing profiles for the FW190 & Ta152 is the NACA 23015.3 (root) and the NACA 23009 (tip).

I wonder if anyone can explain the '.3' suffix to the root profile - I understand this relates to the modified 5-digit designation, but the normal definition for the 5-digit variation comprises 2 digits and not just one and I cant find any explanation for this single digit.

I checked a standard 23015 profile against the Bremen drawings and there is obvious differences which may be influenced by this suffix.

All help would be garefully appreciated.

BillF · 07-21-2009, 10:12 PM

It means its the 3rd known modification of teh 23015 airfoil if I am not mistaken.

06-26-2009, 08:26 AM	#1
Hugh_T Junior Member Join Date: Apr 2009 Location: Fife, Scotland Posts: 14	Fw190 & Ta152 Wing profile Question According to the NACA references, the accepted wing profiles for the FW190 & Ta152 is the NACA 23015.3 (root) and the NACA 23009 (tip). I wonder if anyone can explain the '.3' suffix to the root profile - I understand this relates to the modified 5-digit designation, but the normal definition for the 5-digit variation comprises 2 digits and not just one and I cant find any explanation for this single digit. I checked a standard 23015 profile against the Bremen drawings and there is obvious differences which may be influenced by this suffix. All help would be garefully appreciated.

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07-21-2009, 10:12 PM	#2
BillF Junior Member Join Date: Jul 2009 Location: Medford, MA Posts: 13	It means its the 3rd known modification of teh 23015 airfoil if I am not mistaken.