What altitude does Federal Airways Class E airspace begin from?

• A. 1,200 feet above the surface
• B. Surface
• C. 700 feet above the surface
• D. 18,000 feet above the surface

Answer: (A)

Federal Airways, or Victor airways, are segments of Class E airspace that are designed to protect IFR navigation. The floor of these airways is 1,200 feet above the surface, so the airspace from 1,200 feet AGL up to 18,000 feet MSL within the airway is Class E. Below 1,200 feet AGL, the airspace is not part of the airway’s Class E (it’s typically Class G unless another designation applies). The 18,000 feet figure marks the top of Class E along the airways, with Class A beginning above that level. So the floor of Federal Airways Class E is 1,200 feet above the surface.