james8105
24th Jul 2009, 23:10
G'day,
I've got a couple of questions regarding this approach:
http://www.airservices.gov.au/publications/current/dap/SCBVO01-114.pdf
It's a 3° straight in approach, designed to the RWY, however you hit MDA outside the circling area. What I'm wondering is whether you have to wait until within the circling area to descend below MDA. If you did, you'd go off the 3° path.
From AIP, the reason not to would be
ENR 1.5 1.7.3(a)During visual circling or during a NPA, descent below the MDA may only occur when the pilot: a. maintains the aircraft within the circling area;
Is this a visual segment? (1.13) This would allow you to fly with reference to the ground/water until within the circling area, but at the alt specified for circling (which implies circling MDA?)
Are there any approaches in Australia with a specified visual segment? I always thought a visual segment was a published visual track from level MDA to the circling area.
I thought the AIP reference 'during a visual segment or MDA' part made it pretty clear, however this CAAP www.casa (http://www.%3Cb%3Ecasa%3C/b%3E).gov.au/download/CAAPs/ops/178-1.pdf
seems to imply otherwise. For straight in approaches (6.2) it says if visual contact is made above MDA, you may continue descent. For circling approaches, (6.3), it says that a straight in approach may be made from a circling-only approach, as long as the AIP rules are complied with-ie that you are within the circling area.
Point being that the CAAP seems to distinguish between a straight in approach and circling only approach design, implying that you only need visual contact to descend below MDA (which makes sense).
Also, at MDA you're still too far out to make a night visual approach.
Finally.....why would the vis required be 5km if you won't be able to see the runway?
Anybody able to clarify?
I've got a couple of questions regarding this approach:
http://www.airservices.gov.au/publications/current/dap/SCBVO01-114.pdf
It's a 3° straight in approach, designed to the RWY, however you hit MDA outside the circling area. What I'm wondering is whether you have to wait until within the circling area to descend below MDA. If you did, you'd go off the 3° path.
From AIP, the reason not to would be
ENR 1.5 1.7.3(a)During visual circling or during a NPA, descent below the MDA may only occur when the pilot: a. maintains the aircraft within the circling area;
Is this a visual segment? (1.13) This would allow you to fly with reference to the ground/water until within the circling area, but at the alt specified for circling (which implies circling MDA?)
Are there any approaches in Australia with a specified visual segment? I always thought a visual segment was a published visual track from level MDA to the circling area.
I thought the AIP reference 'during a visual segment or MDA' part made it pretty clear, however this CAAP www.casa (http://www.%3Cb%3Ecasa%3C/b%3E).gov.au/download/CAAPs/ops/178-1.pdf
seems to imply otherwise. For straight in approaches (6.2) it says if visual contact is made above MDA, you may continue descent. For circling approaches, (6.3), it says that a straight in approach may be made from a circling-only approach, as long as the AIP rules are complied with-ie that you are within the circling area.
Point being that the CAAP seems to distinguish between a straight in approach and circling only approach design, implying that you only need visual contact to descend below MDA (which makes sense).
Also, at MDA you're still too far out to make a night visual approach.
Finally.....why would the vis required be 5km if you won't be able to see the runway?
Anybody able to clarify?