David Vincent's "Catalina Chronicle" is the best overview of RAAF Catalina operations available.
RAAF Black Cats specializes in the anti-shipping mining operations and is a homage to the the author's brother.
(Also available through the Big-W department stores in Australia. Try their website, Big-W might post overseas?)
- and K-Mart in Aus:
https://www.kmart.com.au/product/raa...E&gclsrc=aw.ds
...geoff