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LPV vs LNAV/VNAV?
Andrew Sarangan wrote:
That mental calculation could be easily performed by the GPS and displayed as a glideslope. But I have not seen any GPS do that. Certification is irrelevant. Certification is most certainly relevant to your query, as that is most likely what kept that feature out of the TSO C129a certified IFR GPS's. A handheld Garmin 196 (I think that is the model a pilot-friend had with him a couple of years ago) that we took up on a practice IFR flight did just that. It displayed a glideslope for a non-precision approach. If the cheaper handhelds can do it, then why don't their IFR-certified TSO C129a big brothers do it? Because it wasn't part of the certification and therefore, regardless of their ability to provide this feature, are restricted from doing so due to the certification. -- Peter |
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