First Jupiter HC2 Helicopter Enters UK Service at RAF Benson Aviation News – The UK has taken a major step in modernising its military helicopter fleet as the first Jupiter HC2 begins flying operations at RAF Benson. The aircraft will play a key role in training ahead of overseas deployment, strengthening the UK’s rotary wing capability. The Joint Aviation Command (JAC) has officially welcomed the Jupiter HC2 into service, marking a milestone in the renewal of the UK’s medium-lift helicopter force.