here is an extract from the BAA Glasgow 2015 plan;
6.8 Aircraft Maintenance
6.8.1 Two replacement maintenance hangars are likely to
be needed as a result of the western expansion of the
terminal and apron area. An indicative development zone
of approximately three hectares for these hangars is
reserved to the east of the runway 09/27, adjacent to the
General Aviation area (see Drawing 4). It is anticipated that
these hangars would be used to maintain small or medium
sized aircraft such as the SAAB 340, Embraer 135/145,
Boeing 737 variants and Airbus 319/320.
so no secret.
BB