Store separation is the aerospace/defense engineering discipline that studies the safe release of a store, external tank, or other external load from its carrier platform. This page summarizes the concept, why it matters, and how it's verified.
At the moment of release, the carrier platform's aerodynamic field directly affects the separating body's motion; the body must follow a safe trajectory without colliding with the carrier or entering an uncontrolled attitude. Verifying this behavior in advance is required for both flight safety and certification.
Aerodynamic interference is strong close to the carrier, and the separating body's behavior can differ significantly from its free-stream behavior. An incorrectly predicted separation can lead to collision with the platform or an unpredictable trajectory.
Historically this behavior has been verified with wind tunnel testing (captive trajectory systems) or direct flight testing — both high-cost, time-consuming, and logistically demanding methods (see the cost and time comparison).
Today, aerodynamic-database-driven 6-DOF dynamic simulation and Monte Carlo risk analysis are numerical verification methods used alongside physical tests — or in place of them at early design stages.
CFTools brings this verification process together in a single package: from aerodynamic database input to 6-DOF solving, uncertainty modeling, 3D trajectory visualization, and clearance checking. See the use cases page for details.