Bas 90

The Six-Day War, where the Israeli Air Force destroyed most of the Egyptian Air Force on the ground during its opening stages in Operation Focus, served both as validation for the Swedish dispersion concept and as reason to develop the system further.

The base system was therefore never fully active during the time it existed, like the rest of the Swedish Armed Forces during the Cold War and the immediate period after.

The new layout meant that the effective size of a base became 20–40 square kilometers, including surrounding terrain that needed to be surveilled and defended.

The short runways were designated Bertil (B), Cesar (C), David (D), and so on in accordance with the Swedish phonetic alphabet.

Individual aircraft spaces (hardstands) were spread out along the taxiways across the entire area of the base, separated by up to 500 metres (1,600 ft).

The hardstands could be concealed with camouflage nets and decoy aircraft were used to counter enemy aerial reconnaissance.

The KC was located in an underground bunker and was the place from where the air traffic operations on the base were led and organized.

If someone was acting as TLF at one of the short runways they could also take over if required, carrying the necessary radio equipment in a vehicle.

This meant that the groundcrew became motorized in order to quickly deploy to and between the bases many and spread out flight line positions, carrying the necessary aircraft munition, fuel, tools and other equipment in their vehicles and on trailers.

The groundcrew units would have their staging areas spread out and located away from the base infrastructure as a safety measure, and then deploy from there as ordered.

Another addition was the newly formed Swedish Air Force Rangers, which were tasked with searching for and intercepting approaching attackers and infiltrators outside the bases normal defensive perimeters.

The system was completely scrapped in the 2000s and many of the wartime air bases have been demilitarized and sold to civilian owners.

However, with the international developments during the 2010s, particularly in regards to Russia and its war against Ukraine, there is renewed interest in reclaiming former air bases and their capabilities.