On Mar 29, 1:20*pm, Andy wrote:
On Mar 29, 10:43*am, "kirk.stant" wrote:



Andy,

SN10 supports:

T - Turnpoint
L - Landable (safe landing field, shows on Alternates page)
A - Airport (not necessarily landable)
S - Start point
F - Finish Point
M - Point of interest (Mark point?)

These can obviously be used in combinations; Turf, for example, is a
TLASF in my database. *OTOH, Luke 2 would be a TA and would not show
up as an alternate.

Kirk
66

Thanks Kirk.

Actually Luke 2 is a bad example since in the current database it
shows as "LT" and it's actually half covered by a housing development
now. *None of the Luke Aux fields are designated as airports.

I have heard of the SN10 assumption that airports are not landable
before, and I have to say it puzzles me. *Why would anyone preparing a
database ever assign the "A" attribute to a place that is not
landable? *Is this to cover the case where the government source lists
airports that don't exist anymore?

Andy

As Dave replied here before it was for the case that say you decided
an airport was not landable for your glider, say the wingspan too
large for the airport. Yes so why mark it in the database at all in
that case? Personally I want all airports that are even remotely
landable in my database and I'll make a call when I'm flying if any
are really iffy. If it's totally not landable then it's not in the
database.

I have trouble seeing this was a good idea, since other software
handles this differently, but hopefully everybody (especially JJ)
knows about it now :-)

Darryl