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The Type J aircraft shed and type K aircraft storage shed (often called the "J Type" and "K Type" respectively) were designed in the late 1930s. Type Js were intended for aicraft maintenance at operational airfields, whereas Type Ks were for storing aircraft at aircraft storage units.
The basic framework is a series of steel columns supporting arched steel trusses. Parts of this structure are exposed along the sides of the building. The roof is a covering of mild steel plates. The gable ends are clad with corrugated iron. The six leaved doors are of steel frame construction clad in steel and open into door frames supported by end frames. Annexes were built along both sides. Typical dimensions are a length of 300ft, clear span of 150ft and clear height of 30ft.
There are two major differences between the Type J and the Type K. The main visual difference is that the annexes of the Type J (typically used as workshops and offices) have many windows, whereas those of the Type K have relatively few windows commensurate with their storage role. Additionally, Type K hangars have facilities for more internal runways to aid storage of aircraft.
Remaining examples can be seen at Goxhill (Type J), Burtonwood (Type K), Lichfield (Type J and Type K), Snaith (Type J) and Swinderby (Type J).
Type J hangar at Swinderby.
4 July 2009. © Nick Challoner.
Type J hangar at Swinderby.
4 July 2009. © Nick Challoner.
Type J hangars at Swinderby.
4 July 2009. © Nick Challoner.
Type J hangar at Swinderby.
4 July 2009. © Nick Challoner.
Nick Challoner: nick@challoner.com