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Questions tagged [obstacle-clearance]

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3
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3answers
120 views

How much clearance is provided when taking off over a 50 foot obstacle?

When performing a takeoff over a 50' obstacle, how much clearance is provided between the obstacle and the aircraft and where can that be found?
0
votes
1answer
33 views

What are early/inside and late/outside turns (see, e.g., PBN Manual Order 8260.58A) and when do pilots perform them?

While studying FAA's PBN Manual (Order 8260.58A), I came across the concept of early/inside and late/outside turn construction (Section 5-3. Turning Departures). For each of the possible cases, it ...
1
vote
1answer
31 views

How to accurately determine Navigation Accuracy from FAA's PBN Criteria (Order 8260.58A)?

I am trying to understand how to determine the Navigation Accuracy for a given flight phase of an Instrument Flight Procedure, from the US Standard for PBN Instrument Procedure Design (Order 8260.58A)....
5
votes
0answers
110 views

Why does obstacle clearance area splay outward instead of being a rectangle?

I am having trouble figuring out the logic behind the way that obstacle clearance areas are constructed. Take, for example, a departure procedure where Initial Climb Area is defined in TERPS (section ...