Editing Heliport (section)

==Heliport airspace==
The [[airspace]] immediately surrounding the heliport is called the Primary Surface. This area coincides in shape and size with the designated take-off and landing area. This surface is a horizontal plane equal to the elevation of the established heliport elevation. The Primary Surface is further broken down into three distinct regions. These are, the 'Touch-down and Lift-off' (TLOF) area, the 'Final Approach and Takeoff' (FATO) area and the 'Safety Area'.<ref name="TC"/><ref>{{Cite web|title=e-CFR: Title 14: Aeronautics and Space|url=http://www.ECFR.gov/cgi-bin/text-idx?rgn=div5&node=14:2.0.1.2.9|website=ECFR.gov|publisher= |access-date=2016-12-31}}</ref> 

The TLOF is a load-bearing, generally paved area, normally centered in the FATO, on which the helicopter lands and / or takes off. The FATO is a defined area over which the pilot completes the final phase of the approach to a [[Hover (helicopter)|hover]] or a landing, and from which the pilot initiates take-off.  The FATO elevation is the lowest elevation of the edge of the TLOF. The Safety Area is a defined area on a heliport surrounding the FATO intended to reduce the risk of damage to helicopters accidentally diverging from the FATO.<ref name="TC"/>