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> The mounting location for the sextant remains in current 747 designs since it was originally designed and certified with an installed sextant. The sextant (an
by tgokh 10y ago
> The mounting location for the sextant remains in current 747 designs since it was originally designed and certified with an installed sextant. The sextant (and all associated hardware) has long since been removed with the advent of multiple, highly reliable long-range navigation systems. When installed, there was no requirement to depressurize the aircraft.
http://www.airliners.net/aviation-forums/tech_ops/read.main/35528 http://www.airliners.net/aviation-forums/tech_ops/read.main/...
- mikeash 10y agoNo requirement to depressurize, but it had the potential. The "vacuum hose on the sextant port" thing sure sounds like an urban legend. On the other hand, it also sounds like the sort of thing some of my old pilot friends would try.