(a) Related to airport reference points. These surfaces apply to all military airports. For the purposes of this section, a military airport is any airport operated by the DOD.
(1) Inner horizontal surface. A plane that is oval in shape at a height of 150 feet above the established airfield elevation. The plane is constructed by scribing an arc with a radius of 7,500 feet about the centerline at the end of each runway and interconnecting these arcs with tangents.
(2) Conical surface. A surface extending from the periphery of the inner horizontal surface outward and upward at a slope of 20 to 1 for a horizontal distance of 7,000 feet to a height of 500 feet above the established airfield elevation.
(3) Outer horizontal surface. A plane, located 500 feet above the established airfield elevation, extending outward from the outer periphery of the conical surface for a horizontal distance of 30,000 feet.
(b) Related to runways. These surfaces apply to all military airports.
(1) Primary surface. A surface located on the ground or water longitudinally centered on each runway with the same length as the runway. The width of the primary surface for runways is 2,000 feet. However, at established bases where substantial construction has taken place in accordance with a previous lateral clearance criteria, the 2,000-foot width may be reduced to the former criteria.
(2) Clear zone surface. A surface located on the ground or water at each end of the primary surface, with a length of 1,000 feet and the same width as the primary surface.
(3) Approach clearance surface. An inclined plane, symmetrical about the runway centerline extended, beginning 200 feet beyond each end of the primary surface at the centerline elevation of the runway end and extending for 50,000 feet. The slope of the approach clearance surface is 50 to 1 along the runway centerline extended until it reaches an elevation of 500 feet above the established airport elevation. It then continues horizontally at this elevation to a point 50,000 feet from the point of beginning. The width of this surface at the runway end is the same as the primary surface, it flares uniformly, and the width at 50,000 is 16,000 feet.
(4) Transitional surfaces. These surfaces connect the primary surfaces, the first 200 feet of the clear zone surfaces, and the approach clearance surfaces to the inner horizontal surface, conical surface, outer horizontal surface or other transitional surfaces. The slope of the transitional surface is 7 to 1 outward and upward at right angles to the runway centerline.
Notes of Decisions
One Energy Ents., L.L.C. v. Dept. of Transp., 2019 Ohio 359 (Ohio Ct. App. 2019).
· cites it 2× “32 provides ODOT "shall adopt" rules necessary to administer the OAPA, "based in whole upon the obstruction standards set forth in 14 C.F.R. 77.21 to 77.29, as amended, to uniformly regulate the height and location of structures and objects of natural growth in any airport's…”
Ventres v. Goodspeed Airport, LLC, 881 A.2d 937 (Conn. 2005).
“” 14 C.F.R. § 77.21 (a). Such obstructions include “existing and proposed manmade objects, objects of natural growth, and terrain.”
Big Stone Broad., Inc. v. Lindbloom, 161 F. Supp. 2d 1009 (D.S.D. 2001).
“” 14 C.F.R. § 77.21 . Subpart D explains how the FAA will conduct its aeronautical studies to evaluate proposed construction or alteration effects on the use of air navigation facilities or navigable airspace by aircraft, and it also formalizes the procedure for review.”
D&F Afonso Realty Trust v. Garvey, 216 F.3d 1191 (D.C. Cir. 2000).
“” 14 C.F.R. § 77.21 (a). The FAA uses the standards to evaluate whether an object represents a hazard to air navigation.”
Catchings v. City of Glendale, 743 P.2d 400 (Ariz. Ct. App. 1987).
“s, 14 C.F.R. § 77.21 (1975), states that Part 77 “establishes standards for determining obstructions to air navigation.”
Sirianno v. New York RSA No. 3 Cellular P'ship, 284 A.D.2d 913 (N.Y. App. Div. 2001).
“We further reject defendants’ contention that section 810 is preempted by Federal regulations with respect to Sirianno’s privately owned airport; the airport was not registered with the Federal Aviation Administration (FAA) at the time defendants sought approval of the FAA to…”
White Indus., Inc. v. Fed. Aviation Admin., 692 F.2d 532 (8th Cir. 1982).
· cites it 4× “The FAA contends, however, that it was required to consider only those airports meeting the criteria set forth in 14 CFR § 77.21 (c). That section requires the FAA to consider the effect of proposed construction upon any planned or proposed public use airport “that is the…”
Ross v. United States, 640 F.2d 511 (5th Cir. 1981).
“14 C.F.R. § 77.21 et seq. The plaintiffs advanced the argument at trial that the defendant failed to provide a sufficient buffer zone of obstacle clearance at Bates Field.”
BFI Waste Sys. of North Am., Inc. v. Fed. Aviation Admin., 293 F.3d 527 (D.C. Cir. 2002).
“” 14 C.F.R. § 77.21 (a). Sub-part C states that a proposed manmade object, like a landfill, is “an obstruction to air navigation” if it is “500 feet above ground level at the site of the object,” 14 C.”
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