An aerodynamic fairing which is mountable on a strap on solid rocket motor
(SRM) is configured such that in flight aero-acoustic effects are
significantly reduced with regard to the launch vehicle to which the SRM
is mounted and other external apparatus. The aerodynamic fairing is
configured to include a leading edge which is substantially flat and
provides the forward intersection between the inboard and outboard sides
of the fairing. On mounting the fairing and SRM to a launch vehicle, the
inboard surface is closest to the launch vehicle while the outboard
surface is further away. With regard to the aerodynamic fairing, the
transition rearward from the leading edge to a base end, the inboard
surface is initially flat and transitions to the cylindrical shape of the
SRM. The outboard surface of the fairing is configured such that it has a
profile of a canted ogive which extends from the leading edge and smoothly
transitions to the cylindrical shape of the SRM at the base end.