text: Operated for the HM Coastguard by Bristow Helicopters Limited, the crews took over a role previously carried out by the RAF and Royal Navy.
  The 500 missions include rescues of hillwalkers and climbers and searches for missing people.
  The Inverness base is one of the UK's busiest search and rescue units.
target: Search and rescue helicopter crews based at Inverness Airport have completed 500 missions since the start of their duties in April last year.