What type of planes use hamilton standard 6531A blades?

[Zmit]

Hi
What type of planes use hamilton standard 6531A blades?

 

[Zmit]

Please help! How using the number of the blade Hamilton Standard determine the year of manufacturing?

 

[fubar57]

All I can find at the moment is the Beech-18

 

[Zmit]

Thank you, fubar57.
I also already knew. Model 18 or its military versions - the C-45 or AT-7.
Do you know how to use the serial number of the blade to know year of manufacturing?

 

[fubar57]

I'm afraid I don't. I uploaded a propellor manual in the technical section of the forum this week. That may of some help to you