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  • 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…

  • 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…

  • 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 7. Safety of Flight › Section 6. Potential Flight Hazards › 7-6-14. Flying in Flat Light, Brown Out Conditions, and White Out Conditions

    Flying in Flat Light, Brown Out Conditions, and White Out Conditions a. Flat Light. Flat light is an optical illusion, also known as “sector or partial white out.” It is not as severe as “white out” but the condition causes ... pilots to lose their depth-of-field and contrast in vision. Flat light conditions are usually accompanied by overcast skies inhibiting any visual clues. Such conditions can occur anywhere in the world, primarily in snow covered areas but can also…

  • Pilot/Controller Glossary › I

    instrument flight. Also a term used by pilots and controllers to indicate type of flight plan. (See INSTRUMENT METEOROLOGICAL CONDITIONS.) (See VISUAL FLIGHT RULES.) (See VISUAL METEOROLOGICAL CONDITIONS.) (See ICAO term INSTRUMENT FLIGHT RULES.) (Refer to AIM.) INSTRUMENT FLIGHT RULES ... ICAO]- A set of rules governing the conduct of flight under instrument meteorological conditions. INSTRUMENT LANDING SYSTEM (ILS)- A precision instrument approach system which normally consists of the following electronic components and visual aids: a. Localizer. (See LOCALIZER.) b. Glideslope…