Which factor enhances the range of the Trident II ICBM?

The use of a telescoping aerospike significantly enhances the range of the Trident II ICBM by optimizing its aerodynamic efficiency during flight. An aerospike is designed to reduce drag, especially at high speeds and altitudes, allowing the missile to maintain a streamlined profile. As the missile ascends and its speed increases, the aerospike can optimally adjust, allowing for more efficient airflow around the missile and reducing the pressure drag that would otherwise hinder performance.

This design precision allows the Trident II to achieve greater distances than it would with a standard rocket nozzle, thus extending its range significantly. The effectiveness of this aerospike in improving overall thrust and efficiency during flight makes it a crucial component in maximizing the missile's operational capability.