The Instrument Trivia Thread

Q: When crossing an IAF where there is a procedure turn indicated (and you're doing the procedure turn), at what point may you descent to procedure turn altitude?
 
What is a cruise clearance? If you are on this clearance, can you descend without contacting to ATC? If you do report to ATC leaving an altitude, can you return to your previous altitude without contacting ATC?
 
n57flyguy said:
What is a cruise clearance? If you are on this clearance, can you descend without contacting to ATC? If you do report to ATC leaving an altitude, can you return to your previous altitude without contacting ATC?
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Oh, that's a straight out of the AIM, easy to find question! ;)
 
n57flyguy said:
What is a cruise clearance? If you are on this clearance, can you descend without contacting to ATC? If you do report to ATC leaving an altitude, can you return to your previous altitude without contacting ATC?
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You can cruise at any appropriate IFR altitude between your assigned "cruise" altitude down to the minimum IFR altitude(s) for your route. In addition, I believe you can also fly any IAP you'd like at your destination.

You cannot climb back to an altitude you have reported leaving without clearance from ATC.
 
Apophis said:
Ah, I've got a good one (I think).

Only circling minimums are published for a specified instrument approach procedure. Why?

There are two criteria, one of which is kind of obvious, the other, perhaps not so much.
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1) When the runway is not aligned with the approach path by more than 15 degrees.

I have no idea on the second criteria, the only thing I can think of deals with ATC or pilot discretion for circling to a more favored runway because of winds.
 
If there is no hold depicted and ATC instructs you to hold without any radial, direction, or leg information...how do you hold?
 
n57flyguy said:
1) When the runway is not aligned with the approach path by more than 15 degrees.

I have no idea on the second criteria, the only thing I can think of deals with ATC or pilot discretion for circling to a more favored runway because of winds.
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1. Final approach course is more than 30 degrees offset from the runway.

2. Descent gradient between FAF and runway threshold exceeds 400 feet per nautical mile.
 
Ajax said:
If there is no hold depicted and ATC instructs you to hold without any radial, direction, or leg information...how do you hold?
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Totally guessing. Hold on the side of the fix/navaid you arrived from, on the same bearing or radial. Right turns. 1 minute legs.

Option 2: Yell at ATC for not giving you information they're required to provide.
 
Apophis said:
1. Final approach course is more than 30 degrees offset from the runway.

2. Descent gradient between FAF and runway threshold exceeds 400 feet per nautical mile.
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30 degrees! I am rusty! Maybe I was confusing an LDA approach.

Thanks, that was a tough one for me at least.
 
FM_Weasel said:
Totally guessing. Hold on the side of the fix/navaid you arrived from, on the same bearing or radial. Right turns. 1 minute legs.

Option 2: Yell at ATC for not giving you information they're required to provide.
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This would actually be my first option. :)
 
For @MikeD , @The Fez , and other helo guys:

I'm flying an approach at 130 knots in a helicopter. What category am I?

And there's a follow-up after that one.
 
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