Holding / racetrack entry
Guest
Posts: n/a
Holding / racetrack entry
I was flying into a racetrack approach and unfortunatly did a paralell entry, instead of the teardrop, which was the correct way to enter. Humbly I say: I made a mistake, but when concidering that no other aircraft is nearby, none at your altitude and you're out of radar contact; why so picky? I know the rules are there to be followed, but in "real life" - would it make a big difference, if you would just do a paralell entry on purpose instead of the mandatory teardrop.
ps: I know about the buffer area and that is not the issue here.
ps: I know about the buffer area and that is not the issue here.
Guest
Posts: n/a
In accordance with ICAO procedure, there is absolutely nothing wrong with doing exactly that. Other than the usual 3 entry procedures used, it is okay to arrive over the beacon, turn outbound in the shortest, most convenient direction, fly for 60 seconds and return to the beacon on the holding side of the pattern. Thereafter, a normal hold is assumed.
Of course, if you are in the UK, this procedure might not satisfy God's self appointed custodians of aviation safety.
Of course, if you are in the UK, this procedure might not satisfy God's self appointed custodians of aviation safety.
Guest
Posts: n/a
Rusty A300 - RTFQ. A racetrack approach is different from a hold. According to PANS-OPS (what! You haven't read it recently?) you must be established on the inbound course before commencing a racetrack approach procedure. There's nothing to stop you flying a parallel entry but, unlike the hold entry where you just fly back to the beacon on whatever course you find yourself on, you must regain the inbound track before beacon passage.
Guest
Posts: n/a
There is no protection for any sector entry procedures in a racetrack. You do that in the holding pattern first, where the protection area is predicated on all 3 types of sector entries.
Note here too that if you use a sector entry that is not appropriate to your sector you may not have adequate clearance from terrain, adjacent airspace, etc. In practice, this probably won't ever be unsafe, but this will depend on how well the holding pattern has been designed, the speed you enter at and the amiunt of wind blowing at the time and, of course, the direction from which it's blowing. If it's designed for the highest Pans Ops speeds and wind conditions, it's hard to see how your aircraft would leave the protection area itself, but it may create another problem...
This one is related to lateral separation of your aircraft, at any point in the pattern, from aircraft on an air route that may be close to the pattern. In procedural ATC airspace, you may find yourself causing a separation breakdown by not being where you are supposed to be.
But all of this is quite different from making a sector entry in a racetrack procedure. Even using the correct sector earns you hero status in my book! To use the wrong sector entry is to be on track to receive the award posthumously.
The only way for such a manoeuvre to be a bit safe is if the holding pattern overlays the racetrack and if the racetrack commencement altitude is the same as the lowest holding altitude and if the racetrack has the same speed limit as the holding pattern and if you used a one-minute maximum timing for your sector entry rather than the usually longer outbound timing for a racetrack. Geez, there's an awful lot of "and ifs" in all of that.
Oh, BTW, yes I am a procedure designer. So, Commander, I think it's safe to assume you've just used up one of the cat's nine lives. How many have you used up in other ways already?
------------------
Once a king, always a king.
But once a nite's barely adequate!
Note here too that if you use a sector entry that is not appropriate to your sector you may not have adequate clearance from terrain, adjacent airspace, etc. In practice, this probably won't ever be unsafe, but this will depend on how well the holding pattern has been designed, the speed you enter at and the amiunt of wind blowing at the time and, of course, the direction from which it's blowing. If it's designed for the highest Pans Ops speeds and wind conditions, it's hard to see how your aircraft would leave the protection area itself, but it may create another problem...
This one is related to lateral separation of your aircraft, at any point in the pattern, from aircraft on an air route that may be close to the pattern. In procedural ATC airspace, you may find yourself causing a separation breakdown by not being where you are supposed to be.
But all of this is quite different from making a sector entry in a racetrack procedure. Even using the correct sector earns you hero status in my book! To use the wrong sector entry is to be on track to receive the award posthumously.
The only way for such a manoeuvre to be a bit safe is if the holding pattern overlays the racetrack and if the racetrack commencement altitude is the same as the lowest holding altitude and if the racetrack has the same speed limit as the holding pattern and if you used a one-minute maximum timing for your sector entry rather than the usually longer outbound timing for a racetrack. Geez, there's an awful lot of "and ifs" in all of that.
Oh, BTW, yes I am a procedure designer. So, Commander, I think it's safe to assume you've just used up one of the cat's nine lives. How many have you used up in other ways already?
------------------
Once a king, always a king.
But once a nite's barely adequate!
