SASless,
sorry about how I start to get off into angles and stuff, but it is math that serves as the best smokescreen when real understanding is in short supply!
That Blue Book is still around, and does need an update! Perhaps a nice retirement task for me, as my sailbaot glides across the Pacific, the Satdish locked on a commsat and me cruisin the net as that nice bikini-clad shipmate makes another cuppa coffee.
I could distill a few years of Pprune into a nice set of Q and A's!