"Mxsmanic" wrote in message
...
Gig 601XL Builder writes:

Do you know of an aviation use of WAAS that isn't tied to GPS?

Absolutely. GPS can be used (and is used) for en-route navigation
without WAAS. It is more than precise enough for this purpose for
lateral navigation. Standard GPS can be used for any lateral
navigation except during take-off and landing, where it is not
reliable enough for safety as the sole means of navigation. Many
existing aviation GPS receivers do not include support for WAAS.


You act like you are answering my question but you are not. Please reread
the question.