CP.V.F.R5
Risk managementDegraded Visual Environment (DVE) and flat light conditions.
From the FAA library
- Chapter 2. Aeronautical Lighting and Other Airport Visual Aids › Section 1. Airport Lighting Aids › 2-1-8. Pilot Control of Airport Lighting
Control of Lighting Systems a. Operation of approach light systems and runway lighting is controlled by the control tower (ATCT). At some locations the FSS may control the lights where there is no control tower in operation. b. Pilots ... request that lights be turned on or off. Runway edge lights, in-pavement lights and approach lights also have intensity controls which may be varied to meet the pilots request. Sequenced flashing lights (SFL) may be turned…
- Chapter 2. Aeronautical Lighting and Other Airport Visual Aids › Section 1. Airport Lighting Aids › 2-1-5. In-runway Lighting
runway Lighting a. Runway Centerline Lighting System (RCLS). Runway centerline lights are installed on some precision approach runways to facilitate landing under adverse visibility conditions. They are located along the runway centerline and are spaced at 50-foot intervals. When ... viewed from the landing threshold, the runway centerline lights are white until the last 3,000 feet of the runway. The white lights begin to alternate with red for the next 2,000 feet, and for the last…
- Pilot/Controller Glossary › A
ALSF-1- Approach Light System with Sequenced Flashing Lights in ILS Cat-I configuration. 2. ALSF-2- Approach Light System with Sequenced Flashing Lights in ILS Cat-II configuration. The ALSF-2 may operate as an SSALR when weather conditions ... permit. 3. SSALF- Simplified Short Approach Light System with Sequenced Flashing Lights. 4. SSALR- Simplified Short Approach Light System with Runway Alignment Indicator Lights. 5. MALSF- Medium Intensity Approach Light System with Sequenced Flashing Lights. 6. MALSR- Medium Intensity Approach…
- Chapter 2. Aeronautical Lighting and Other Airport Visual Aids › Section 1. Airport Lighting Aids › 2-1-2. Visual Glideslope Indicators
half to one mile during the day and up to five miles at night depending upon the visibility conditions. (See FIG 2-1-6.) FIG 2-1-6 Tri-Color Visual Approach Slope Indicator NOTE-1. Since the tri-color ... VASI consists of a single light source which could possibly be confused with other light sources, pilots should exercise care to properly locate and identify the light signal. 2. When the aircraft descends from green to red, the pilot…
- Chapter 17: Aeromedical Factors › Ground Lighting Illusions › How To Prevent Landing Errors Due to Optical Illusions
Ground Lighting Illusions Lights along a straight path, such as a road or lights on moving trains, can be mistaken for runway and approach lights. Bright runway and approach lighting systems, especially where few lights illuminate the surrounding terrain ... Optical Illusions To prevent these illusions and their potentially hazardous consequences, pilots can: 1. Anticipate the possibility of visual illusions during approaches to unfamiliar airports, particularly at night or in adverse weather conditions. Consult airport diagrams and the Chart Supplement…
- Glossary
govern the tilt of the rotor disk and, consequently, the direction and velocity of horizontal movement. Degraded Visual Environment (DVE). Any flight environment of reduced visibility in which situational awareness of the aircrew or control of the aircraft ... they are during flight operations within clear or undiminished visibility. DVE conditions are further categorized into eleven different types: smoke, smog, clouds, rain, fog, snow, whiteout, night, flat light, sand, and brownout. Delta hinge. A flapping hinge with an axis…