Seeking expert pilot opinions on which approach lights you prefer and/or the differences between...ODALSMALSFMALSRSSALFSSALRALSF-1ALSF-2RAILCALVERTCALVERT-2Im designing the new Dusseldorf terminal in GMAX and fixing the airport and need help in this area, as I could find no info on this subject.Also any opinions on landing aids VASI,APAPI,PAPI...pulsating,tri-color etc...or just post your personal favoritesthank you very muchODOG

Hey ODOG,Don't know the answer myself, but am certainly looking forward to an explanation! Something I have wondered about for quite some time...

well heres is some info i found...not much out there.Precision Approach Path Indicator (PAPI) Systems, ALSF-2, which is short for Approach Light system with Sequenced FlashersSSALR or Simplified Short Approach Light system with Runway Alignment Lights and Sequenced FlashersPAPI When descending at the appropriate slope, the two inner light boxes will project a red beam of light, while the 2 outer boxes will project a white beam. If slightly high, the 3 outer boxes will project white while the innermost box will be red, and if the pilot is too high on his approach angle, all 4 boxes will be white. Conversely if slightly low, the three inner boxes will be red, with the outer box showing white, and if too low, all four boxes will project a red beam.The ALSF lighting systems contain more high intensity lights than any other approach lighting systems, so they are conspicuous in visibility-restricting weather.im still searching...odog

Hey Odog,Thanks for the update thus far, much appreciated!

I've never been to Dusseldorf and I don't know what approach lighting is actually there, but usually folks add whatever lights are present in real life when designing a simulator add-on.One place where you can read about the various approach lighting schemes (except for the CALVERT) is in the Aeronautical Information Manual, available on-line at:http://www.faa.gov/atpubs/aim/Chap2/aim0201.htmlHope that helps,John

Hey John,Thanks a lot for the link! Much appreciated.

oh fantastic link! thank you, just what i needed

Glad to be of help!John