I don't know when that was taken...I got it off the museum website.
The black blades are fairly new to the airplane. When fotobass mentioned the silver blades, all I could see in my mind was silver blades on Chuckie...one remembers the blades that you have to turn and count...
here's a pic with the first new black blades...

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Zane Adams
There I was at 20,000 ft, upside down and out of ammunition.
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