A section of one of Europe's longest runways is undergoing a £4m upgrade.
Machrihanish's 3,049m (10,003ft) long runway was built in the 1960s on a former wartime air base and was used by the RAF and Nato air forces until 1997.
During Nasa's space shuttle era, the airstrip - three miles (5km) from Campbeltown - was certified as an emergency landing site for the spacecraft. The shuttle programme ran from 1981 to 2011.
In recent years, there have been proposals to create a spaceport at the airport for space tourism and satellite launches.
A section of the runway used by Campbeltown Airport is being upgraded.