VNAV

VNAV

Vertical NAVigation in aviation is a function of autopilot which directs vertical movement of aircraft either according to pre-programmed FMS flight plan during cruise or according to ILS glideslope during approach.

VNAV in the sense that the FMS directs altitude according to a flight plan was first introduced on B757 and B767 in 1982, while Autoland (using ILS guidance) has been available since mid-20th century.

ee also

LNAV, RNAV, Navigation.

External links

* http://www.ae.gatech.edu/people/jpclarke/cda/workshop2/presentations/Miller.pdf


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