Ah, Can't you just hear it !

There is an olde nostalgic saying "Ah De Havilland"
But wot about "Agh ha Pratt & Whitney and Hamilton Standard"
Oh sweet memories - Can't you just hear it.
1941 was a good year for building North American Harvards. (ie, 67 years young).
Here we have ZK-XSA burning up some carbon credits and stimulating the ear drums as it heads back to its home strip.