Is the hold entry heading or track dependant??

[machlimter99]

Is the hold entry heading or track dependant??

[Confucius]

Heading.

I can't just say heading as it's less than 10 words, hence this sentence!

[None]

Neither. It is sector dependent.

Holding Pattern Entry Procedures

3. Entry Procedures. (See FIG 5-3-4.)
(a) Parallel Procedure. When approaching the holding fix from anywhere in sector (a), the parallel entry procedure would be to turn to a heading to parallel the holding course outbound on the nonholding side for one minute, turn in the direction of the holding pattern through more than
180 degrees, and return to the holding fix or intercept the holding course inbound.
(b) Teardrop Procedure. When approaching the holding fix from anywhere in sector (b), the teardrop entry procedure would be to fly to the fix, turn outbound to a heading for a 30 degree teardrop entry within the pattern (on the holding side) for a period of one minute, then turn in the direction of the holding pattern to intercept the inbound holding course.
(c) Direct Entry Procedure. When approaching the holding fix from anywhere in sector (c), the direct entry procedure would be to fly directly to the fix and turn to follow the holding pattern.
(d) While other entry procedures may enable the aircraft to enter the holding pattern and remain within protected airspace, the parallel, teardrop and direct entries are the procedures for entry and holding recommended by the FAA.
http://www.faa.gov/ATPubs/AIM/Chap5/aim0503.html

[MBA747]

Entry Procedures

Heading determines the sector your in and the sector entry to fly. Although a few people think its track,its not.

[Dockjock]

Once you're established in the hold, the pattern becomes track dependant though.

[machlimter99]

Can someone please explain why its heading dependant

[punkalouver]

Perhaps whoever came up with the rule realized that some ridiculous instructors would have us spending all sorts of time figuring out what the exact track is(at least in some planes) when in fact 99.9% of the time who cares. It is close enough to use heading.

[Tinstaafl]

Because containment within the airspace will vary with the number of degrees the aircraft needs to alter heading**. More degrees to turn then more room needed to complete the turn - the aircraft will be further displaced from its original position.

Compare an aircraft altering HDG by 180 deg to the same aircraft altering HDG by only 10 deg. Which one will be positioned further from the starting point (albeit pointing in a different direction) after completing the turn compared to just prior to starting the turn?


**also aircraft speed & wind effect - both of which are considered in the design of the procedure.