SD Tempest is an ART 8032-class tug operated by Serco Marine Services in support of the United Kingdom's Naval Service.[1] SD Tempest was ordered specifically to handle the s. However, the vessel also performs general harbour towage when not required in her primary role.
Normally based in Portsmouth, SD Tempest was temporarily transferred to Rosyth in June 2017 to assist with 's departure on sea trials.