Spec-Dor designs, builds and installs a wide variety of hangar doors for civil aviation clients.  Skyservice Toronto Problem: Original spec was for 4 blades on 2 tracks. Solution: 3 blades on 2 tracks at lower cost.  Westjet Edmonton Canadian Aviation Museum Problem: Spec called for extremely low air infiltration. Solution: Pneumatic seals created airtight door.  Ocean Industries Bell Helicopter Vertically stacking door still functioning 20 years later.  Air Spray Problem: Original spec was for 2 x 110” wide doors. Solution: One double-sized building, one door system, 2 hangar bays, center panel common to both bays, and lower overall cost.  OMF Aviation Problem: Original spec was for 6-blade bi-parting door. Solution: 2 blade slide to one side door, operates at 2x speed, at much lower cost.  Boeing  Conif Air
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