LDA with straight in minimums?
#1
Gets Weekends Off
Thread Starter
Joined APC: Apr 2010
Position: Widebelly FO
Posts: 560
LDA with straight in minimums?
Pretty much referring to the ROSSLYN LDA in to DCA. Why does the chart still have straight in minimums if its considered a circle app? As far as I know, more than 30 degrees is considered circling...
#3
Unless there is an obscure TERPS Manual exception, the only explanation I can give is that IT'S KDCA AND THE FAA CAN DO WHAT WANTS. The LDA 19 is outside of 30 degrees, as is the ROSSLYN, the course does cross the extended centerline but the ROSSLYN doesn't; the descent gradient is less than 400 ft/nm. They both should be circling only because of the course guidance outside of 30 degrees of runway centerline.
GF
GF
#4
Here are some more examples that makes me think my original theory might be correct:
LDA-H has no straight in.
http://www.airnav.com/depart?http://...06213LDADH.PDF
LDA/DME RWY11 has straight it.
http://www.airnav.com/depart?http://...5414LDAD11.PDF
LDA-H has no straight in.
http://www.airnav.com/depart?http://...06213LDADH.PDF
LDA/DME RWY11 has straight it.
http://www.airnav.com/depart?http://...5414LDAD11.PDF
#7
#8
Gets Weekends Off
Thread Starter
Joined APC: Apr 2010
Position: Widebelly FO
Posts: 560
Unless there is an obscure TERPS Manual exception, the only explanation I can give is that IT'S KDCA AND THE FAA CAN DO WHAT WANTS. The LDA 19 is outside of 30 degrees, as is the ROSSLYN, the course does cross the extended centerline but the ROSSLYN doesn't; the descent gradient is less than 400 ft/nm. They both should be circling only because of the course guidance outside of 30 degrees of runway centerline.
GF
GF
#9
It's been a very long time since I had to think about this but I seem to remember from my cfi days that for an approach to have straight in mins it had to satisfy 3 requirements;
A "normal" or approx 3 degree final approach angle.
The final approach path had to cross the approach end of the designated runway..
Final approach course within 30 dgrees of the runway center line.
I think it was somewhere in the Terps.
A "normal" or approx 3 degree final approach angle.
The final approach path had to cross the approach end of the designated runway..
Final approach course within 30 dgrees of the runway center line.
I think it was somewhere in the Terps.
Thread
Thread Starter
Forum
Replies
Last Post