Amera has a new aircraft hangar terrain piece available over in their webshop.
From the announcement:
Amera Plastic Mouldings launches a near scale model of a hardened aircraft shelter (HAS) representative of the type found on bases in Germany constructed during the cold war. The model comprises 7 mouldings and requires simple cutting out. (Model of Airfix Harrier not included)
Dimensions: Main Hanger L42cm x W25cm x H10.5cm overall L 57cm