Jump to content

Archived

This topic is now archived and is closed to further replies.

gura75

High altitude airports and minimums

Recommended Posts

Kabul (OAKB) is one of them with aprt elev. 5877 feet. When it comes to mimimum hight it is getting tricky I think. Let us assume the minimum altitude is 500 ft. (above the aprt elev ). I would like to adjust minimums setting to this altitude (PMDG 737). How would I do so.... adding 5877 + 500 results in 6377ft, Does it mean I have to turn the minimum knob all the way up to 6377??? It will take like ages....any suggestions guys? gura75


Geir Hansen

Share this post


Link to post

I do believe that the "minimum" altitude would be the minimum altitude that the pilot needs to see the airport before going missed. That I think would be in the 100's of feet based on the radar altitude. For example, Phoenix is at around1200 feet. Minimum I think is around 200'. Thus you would set 200'.


Kenny Lee
"Keep climbing"
pmdg_trijet.jpg

Share this post


Link to post

Depends if you're using the "RADIO" or "BARO" setting for the minimums. Typically you would use the "BARO" for CAT I ILS or non-precision approaches, and "RADIO" for CAT II and III. The difference is "RADIO" uses the radio altimeter, and "BARO" uses the regular altimeter. So if you are using "BARO" then yes, you would have to hold it for quite some time.For example, look at the following 2 approaches: (same airport, same runway)http://aeronav.faa.g.../09077IL34L.PDF (CAT I ILS, minimums 5527, BARO)http://aeronav.faa.g...09077I34LC2.PDF (CAT II ILS, minimums 107 RADIO. Note it says RA 107, where the first just says 5527.)


Steve Caffey

Share this post


Link to post
  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    43%
    $10,910.00 of $25,000.00 Donate Now
×
×
  • Create New...