Thread: KCHD to KMYF
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Old May 4th 10, 06:19 AM posted to rec.aviation.piloting
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Default KCHD to KMYF

Mxsmanic wrote:
writes:

Actually Victor airways were developed to separate the bug smashers from
everyone else and to keep them from controlled airspace.


I'm not sure what you are saying. The Victor airways provide safe IFR routing
below 18,000 feet and are always controlled airspace. Each airway extends from
the base of controlled airspace up to 18,000. Of course, they can also be used
for VFR. So I don't quite see how they separate bug smashers from everyone
else.


Victor airways are Class E airspace.

There is nothing intrinsic about them that provides "guaranteed navigation
performance and safety" other than the accuracy of VOR's and with the
invention of GPS they are becoming obsolete.


The guarantees concern obstacle clearance and navaid reception. The VORs that
define the airways can be reasonably expected to remain in range throughout
the airways, whereas when cooking up one's own route via ground navaids, one
must take into account the service volume of the stations. Additionally, the
airways are guaranteed to be free of obstacles throughout their width above a
certain published altitude, and the navaids are guaranteed to be within range
beyond a certain altitude as well (which may be higher than the obstacle
clearance altitude).


As I said, the invention of GPS is making Victor airways obsolete.

There is nothing about a Victor airway that guarantees obstacle clearance
as they are defined by systems that only provide horizontal information.

What guarantees being free of obstacles is looking at a sectional, which
is the same whether you are using Victor airways or GPS.

--
Jim Pennino

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