Some good articles with related aero info and pics in the Dec '17 issue of "Classic Bike" magazine. John Britten's "Winged Warrior" built in the late '80's on pages 18 and 19.
George Brown's "Nero" and "Super Nero" Vincents on pages 78 - 83. Piero Taruffi's LSR runs on Gilera on pages 100 - 104.
Ed