Delta IV Launch Vehicle System

Comprehensive wind tunnel testing informs design for prelaunch stability

As part of the continuing development of the Delta IV launch vehicle system, we were asked to determine what wind loads the launch vehicles were likely to experience over the several weeks they are on the launch pad prior to launch. Various launch vehicle configurations were under consideration, therefore, multiple investigations were required to ensure all configurations would have the integrity to withstand high winds should they occur prior to launch. The design loads derived from the wind tunnel testing informed the design and the Delta IV launch vehicle system continues its successful operations today, maintaining an active launch schedule.