A 55Wg RC-135U "Combat Sent" seen plugged in at the Hall waiting its next mission, this a/c deploys to the Hall each year to monitor the Soviet spring exercises.
A pretty rare visitor to the UK, The 55Wg TC-135W (RC-135W trainer) has wooden cheek pouches to simulate the RC-135W flight handling which in turn saves flight hours on the RC-135W fleet.