Can I use GPS approach at alternate?
Can I use GPS approach at alternate? The point of the special rules using GPS as an alternate has to do with the fact that non-WAAS GPS is supplementary navigation. So you can file with the destination or the alternate having only a GPS approach, but not both. WAAS-equipped aircraft can file for destinations and alternates having only GPS approaches.
What is the 1 2 3 rule for alternate airports?
14 CFR 91.169 (b) (2) (i) states that an alternate airport is not required if “for at least 1 hour before and for 1 hour after the estimated time of arrival the ceiling will be at least 2000 feet above the airport elevation and the visibility will be at least 3 statute miles.” To help remember those conditions of the ...
Do airline pilots always use ILS?
Takeoff is always achieved manually. However, depending on the aircraft type and airport approach facilities, they can be landed automatically using an instrument landing system coupled with onboard equipment. However, given a choice, most pilots prefer to perform a manual landing.
What is the 123 rule for alternates?
It's called the 3-2-1 rule, and it's the easiest way to remember the regulation. To recap, if the weather at your destination isn't at least 3 SM of visibility and 2000' AGL ceilings from 1 hour before to 1 hour after your ETA, you need to file an alternate.
Do pilots use ILS all the time?
Most of the time, yes. Sometimes we might take a visual approach, but that's rare especially at the big airports who will guide you through radar vectors to an ILS under strict speed control, but even if we do carry out a rare visual approach, if the ILS is up and running we can still use that for extra guidance.
Can LPV be used for alternate?
According to the FAA, if you're using an airport with LPV only (no ILS or other ground-based navaid approach) as your alternate airport, you need weather minimums that meet the LNAV or circling MDA, or the LNAV/VNAV DA if you're equipped to fly it.
What airports can never be used as alternates?
Airports without weather reporting, or approaches with unmonitored approach equipment, can't be used as an alternate.
Can you use GPS for a VOR approach?
Yes, you can shoot a VOR approach with GPS only as long as the title of the approach is titled, VOR/GPS. To count the approach as a VOR approach on an FAA flight test will require that the VOR be tuned to the appropriate station and identified.
Will GPS replace VOR?
When a VOR is decommissioned, it is replaced with a GPS-based intersection and GPS-based airways. Sometimes the DME is retained even if the VOR is removed.
Does your alternate airport have to have an instrument approach?
From a practical standpoint, this means that if your original destination only has RNAV approaches, your alternate airport must have an approved instrument approach procedure, other than GPS, that is anticipated to be operational and available at the estimated time of arrival, and which the aircraft is equipped to fly.
When can you use GPS on an approach?
What this means practically is that a pilot may utilize their GPS RNAV system to actually fly along a VOR approach beyond the final approach fix as long as they can “monitor” the VOR (or TACAN or NDB) on a secondary radio and ensure that the GPS is navigating along the appropriate NAVAID course for the approach.
Is LNAV VNAV considered a precision approach?
LNAV approaches are less precise (556m lateral limit) and therefore usually do not allow the pilot to descend to as low an altitude above the runway.