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ODALOpen and Dynamic Aspect Languages
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Police Officer 2 Ryan Fortich of Manila Police District-Station 11 identified the fatalities as Udrico Kaslibolo, 17; and Darwin Odal 25; while the wounded victim was identified as Jacky Villamor, 22.
Odal, on the other hand, succumbed to his injuries while being treated in the hospital, after he was shot also by an unidentified assailant while he was in front of his friend's house.
The 11th and last is the Omni-Directional ALS, or ODALS, which gets the Monty Python "And now for something completely different" award.
Suddenly seeing an ODALS when you were expecting a familiar MALSF might introduce doubt about whether you're even looking at a runway at all--and that's not something you want when mucking about at MDA in low visibility.
(3) VOR, VOR/DME, TACAN, LOC, LOC/DME, LDA, LDA/DME, SDF, SDF/DME, GPS, ASR and RNAV (LNAV/VNAV and LNAV line of minima) Inoperative Visual Aid Approach Category Increase visibility ALSF 1 & 2, MALSR, & SSALR ABCD 1/2 mile SSALS,MALS, & ODALS ABC 1/4 mile Along those lines, DME is often used to identify step-down fixes and as a result many approaches have a note "DME Required." If the DME is NOTAM'd out, then the approach might be considered NA.
There are actually three basic ALS families to learn: ALSF-1, ALSF-2, and ODALS. Understand the basics of each and you'll be able to decipher any of the 11 combos common in the U.S.