May 29th 14, 09:48 PM
On Sunday, September 5, 1999 3:00:00 AM UTC-4, David Stocker wrote:
> I'm based in ROA and last flew the LDA 6 approach a couple of days ago. It's a
> very interesting example (see plate at
> <http://rev.net/~stockerd/images/Aviation/ROA_LDA_6.pdf>). The straight-in
> LDA 6 has the lowest minimums of any approach at ROA, including the
> straight-in ILS 33! (364 vs. 500 AGL) All approaches at ROA have higher than
> normal minimums due to terrain restrictions for the missed approach. LDA 6 is
> offset from the runway heading by about 13 deg. due to a mountain approx. 2800
> AGL on the runway heading.
>
> I was in the tower one night watching the airliners break out near minimums
> and make the honker turn required to land. Impressive! Not too long ago I
> was on a US 737 which missed on this approach during rain showers -- made it
> on the second try. I would think that that relatively low minimum, required
> turn and runway length (6800) make this one of the toughest approaches
> routinely flown by the airlines on the East Coast.
>
> For me, this approach settles the "can I descend on the GS before I'm
> established on the localizer" debate. Do that on this approach and you'll
> likely hit a granite cloud -- note that ridges on both sides as shown on the
> plate (3375 MSL on the left, 4011 on the right).
>
> My answer to the interview question would be "If straight-in it's a precision
> approach, otherwise it's not."
>
> Dave Stocker
>
> PP-ASEL-IA, PA28-181, N8331C
>
> Garner Miller > wrote:
> >
> >OK, I'm in need of some 100% trivial information. I have a friend
> >going for an airline interview next week, and rumor has it they're
> >going to whip out an approach plate with an "LDA with Glideslope"
> >approach.
> >
> >Nothing really unusual about such a beast... it's basically just an ILS
> >offset from the runway by more than a couple degrees, and [other than
> >turning before you land] is flown the same way, complete with a
> >Decision Altitude (DA) vs. an MDA. In this case, I think it'll
> >probably be the one to Runway 6 in Roanoke, VA (ROA).
> >
> >The tricky part: I hear the question will be, "Is this a precision
> >approach?"
> >
> >[...snip...]
> I'm based in ROA and last flew the LDA 6 approach a couple of days ago. It's a
> very interesting example (see plate at
> <http://rev.net/~stockerd/images/Aviation/ROA_LDA_6.pdf>). The straight-in
> LDA 6 has the lowest minimums of any approach at ROA, including the
> straight-in ILS 33! (364 vs. 500 AGL) All approaches at ROA have higher than
> normal minimums due to terrain restrictions for the missed approach. LDA 6 is
> offset from the runway heading by about 13 deg. due to a mountain approx. 2800
> AGL on the runway heading.
>
> I was in the tower one night watching the airliners break out near minimums
> and make the honker turn required to land. Impressive! Not too long ago I
> was on a US 737 which missed on this approach during rain showers -- made it
> on the second try. I would think that that relatively low minimum, required
> turn and runway length (6800) make this one of the toughest approaches
> routinely flown by the airlines on the East Coast.
>
> For me, this approach settles the "can I descend on the GS before I'm
> established on the localizer" debate. Do that on this approach and you'll
> likely hit a granite cloud -- note that ridges on both sides as shown on the
> plate (3375 MSL on the left, 4011 on the right).
>
> My answer to the interview question would be "If straight-in it's a precision
> approach, otherwise it's not."
>
> Dave Stocker
>
> PP-ASEL-IA, PA28-181, N8331C
>
> Garner Miller > wrote:
> >
> >OK, I'm in need of some 100% trivial information. I have a friend
> >going for an airline interview next week, and rumor has it they're
> >going to whip out an approach plate with an "LDA with Glideslope"
> >approach.
> >
> >Nothing really unusual about such a beast... it's basically just an ILS
> >offset from the runway by more than a couple degrees, and [other than
> >turning before you land] is flown the same way, complete with a
> >Decision Altitude (DA) vs. an MDA. In this case, I think it'll
> >probably be the one to Runway 6 in Roanoke, VA (ROA).
> >
> >The tricky part: I hear the question will be, "Is this a precision
> >approach?"
> >
> >[...snip...]