Scout and Raine, a pair of educational episodes. Good stuff!
It's interesting that the Brits had a patent for a synchronizer at the beginning of the war, but for whatever reason did not develop a working system for their planes until after everyone else had. Strange really.
Raine, there are numerous contemporary sources that outline the clock face system of gun ranging. Was there one in particular you referenced? Also, what does Jim think of the window Swany installed for him? I imagine it really spiffs up the hut.