When can an airport be used as an alternate?

When can an airport be used as an alternate?

You need to name an alternate airport on your IFR flight plan if, for the period of time one hour before and one hour after your estimated time of arrival, the weather is forecast to include a ceiling of 2,000 feet agl and/or visibilities less than three statute miles (the 1-2-3 rule).

What does an airport need to be an alternate?

Not just any airport qualifies as an alternate per 91.169(c). The standard minimum weather requirement for an alternate is 600-2 if there’s a precision approach available and an 800-2 for a non-precision approach. Many airports have non-standard minimums for alternate purposes.

What are the Part 91 IFR alternate weather minimums for precision approach?

Planning Your IFR Alternate If a usable precision approach is available: 600′ ceilings AND 2 SM of visibility. If only a non-precision approach is useable: 800′ AND 2 SM of visibility.

What are the standard alternate minimums of the alternate has one RNAV approach?

Standard alternate minimums for non-precision approaches and approaches with vertical guidance [NDB, VOR, LOC, TACAN, LDA, SDF, VOR/DME, ASR, RNAV (GPS) or RNAV (RNP)] are 800-2. Standard alternate minimums for precision approaches (ILS, PAR, or GLS) are 600-2.

What are the alternate minimums?

So, what are alternate minimums when flying IFR? Standard alternate minimums require the forecasted conditions at the time of arrival be at least 2 miles visibility and at or above 600 foot ceilings for precision approaches, or 800 foot ceilings for non-precision approaches.

Where can alternate minimums be found?

To view the non-standard IFR alternate minimums information, you will need to go to the Airports page > search for the airport > on the Procedures sub-tab, tap on Arrival > and then look for the Alternate minimums line. If there is an entry, tap on it and swipe through the pages until you find the airport in question.

Do alternate minimums apply to helicopters?

Helicopter IFR Alternates The pilot must file for an alternate if weather reports and forecasts at the proposed destination do not meet certain minimums. These minimums differ for Part 91 and Part 135 operators.

Where do you find alternate takeoff minimums?

Do You Need A Takeoff Alternate? IFR takeoff alternates are required when weather conditions are above takeoff minimums, but below landing minimums for the departure runway or airport. Takeoff alternates aren’t required under Part 91, and usually only apply to Part 135 or Part 121 Air Carriers.

What is a take off alternate?

A Take-off alternate is an aerodrome at which an aircraft would be able to land should this become necessary shortly after take-off and it is not possible to use the aerodrome of departure.

What are the standard alternate minimums?

Standard alternate minimums for a precision approach are a 600-foot ceiling and 2 SM visibility. For a non-precision approach, the minimums are an 800-foot ceiling and 2 SM visibility. Standard alternate minimums apply unless higher alternate minimums are listed for an airport.

Where can I find non standard alternate minimums?

What are standard alternate minimums?

Standard alternate minimums require the forecasted conditions at the time of arrival be at least 2 miles visibility and at or above 600 foot ceilings for precision approaches, or 800 foot ceilings for non-precision approaches.