#Alsf 2 upgrade#
#Alsf 2 full#
#Alsf 2 professional#
#Alsf 2 series#
#Alsf 2 free#

If the approach is close to minimums, both things happen in a couple seconds, so it pays to understand everything the lights tell. Take your pick it’s what you’ll see on runways with Cat-II and Cat-III ILS approaches.Īpproach lights accomplish two tasks: orientation and measurement. Some sources say the “2” means it’s designed for Cat-II approaches. It’ll also help you remember that this “Approach Light System with Flashers version 2” is the one with all the bells and whistles.

#Alsf 2 full#

The approach lights, however, are a great way to measure your visibility as well as bridge the gap between flying on instruments and a well-placed landing flare - if you know what you’re looking at.Īctually, a full ALSF-2 approach lighting system is usually 2400 feet, which is 800 yards, but I couldn’t resist the headline. (The forthcoming FAR 91.176 might be, if you have an enhanced vision flight system, but that’s another topic.)

#Alsf 2 free#

Thus, the approach lights are not a free ride to 100 feet AGL. Nine of the references are on the runway, which means it’s entirely possible to reach DA or MDA, be in a position to land, see the approach lights-because they’re right in front of you, but not have the required visibility to descend further. Section (3) lists nine more things that fall into the general categories of “paint, pavement, or lights.” Summing all of this up it says: You can’t descend past DA/MDA unless you’re in a position to land and you have the required visibility and you have one of the references in sight. (i) The approach light system, except that the pilot may not descend below 100 feet above the touchdown zone elevation using the approach lights as a reference unless the red terminating bars or the red side row bars are also distinctly visible and identifiable. (3) Except for a Category II or Category III approach … at least one of the following visual references for the intended runway is distinctly visible and identifiable to the pilot: (2) The flight visibility is not less than the visibility prescribed in the standard instrument approach being used and (1) The aircraft is continuously in a position from which a descent to a landing on the intended runway can be made at a normal rate of descent using normal maneuvers … (c) … no pilot may operate an aircraft, except a military aircraft of the United States, below the authorized MDA or continue an approach below the authorized DA/DH unless. Let’s get the FAR misunderstanding out of the way first.

#Alsf 2 series#

Underground electrical and series circuit distribution with limits of disturbance.A favorite information morsel from instrument training is “being able to descend to 100 feet AGL when you can see only the approach lights.” That’s too bad, because it belittles a beautiful piece of information design by turning it into a tool for aviation trivia night. It’s also wrong most of the time.

Design and layout details for mounting, cabinet, and wiring installation for ALSF-2 components.

Design and layout of power distribution to Far Field Monitor and ALSF-2 light station.

The existing antennaĮlevation will be adjusted to 8” below the ALSF-2 light plane.

Design and layout of removal and reinstallation of Far Field Monitor, shelter, and associated components from the existing pier to new.

Design and site layout of the reinstallation of ALSF-2 light equipment.

The light plane will be coordinated with the proposed pier elevation change.

Design and layout of ALSF-2 light plane profiles and lamp schedules.

Design and layout of the demolition/removal of existing ALSF-2 power and controls back to junction cans adjacent to the new pier.

Lighting fixtures & structures will be carefully stored for reinstallation.

Design and layout of the removal of the existing ASLF-2 approach lighting system lighting fixtures and structures.

Cross-discipline coordination with Pier replacement to minimize downtime of ALSF-2 system and associated CAT II/III infrastructure.

Arora is providing ancillary engineering design for the following key project elements:

#Alsf 2 upgrade#

SCOPE OF WORK INCLUDED:Īrora’s work includes design efforts and FAA coordination to reinstall the ASLF-2 system at exact locations, in conformance to FAA design standards, for a fully functional airfield lighting system upgrade within the limits of disturbance.

#Alsf 2 professional#

Arora is currently performing professional engineering services to design and layout the removal and reinstallation of the Runway 4R ALSF-2/SSALR approach lighting system in coordination with the upgrades to the Runway 4R Light Pier.