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The acronym "ICEFLAGS" is a tool to remember the different types of vestibular and visual/night illusions Another significant night visual approach risk stems from the way we interpret visual cues. Consider the runway light illustrations below: An up-sloping runway, up-sloping terrain, or both, can create an illusion the aircraft is at a higher altitude than it actually is Consult airport diagrams and the Chart Supplement U.S. for information on runway slope, terrain, and lighting If the runway has a city in the distance on higher terrain, the tendency will be to fly a lower-than-normal approach
Surface references or the natural horizon may at times become obscured by smoke, fog, smog, haze, dust, ice particles, or other phenomena, although visibility may be above Visual Flight Rule (VFR) minimums S76, vicinity Moosonee ON Canada, 2013 (On 31 May 2013 the crew of an S76A helicopter positioning for a HEMS detail took off VFR into a dark night environment and lost control as a low level turn was initiated and did not recover. The helicopter was destroyed and the four occupants killed. The Investigation found that the crew had little relevant experience and were not "operationally ready" to conduct a night VFR take off into an area of total darkness. Significant deficiencies at the Operator and in respect of the effectiveness of its Regulatory oversight were identified as having been a significant context for the accident.)Anticipate the possibility of visual illusions during approaches to unfamiliar airports, particularly at night or in adverse weather conditions Various surface features and atmospheric conditions encountered in landing can create illusions of incorrect height above and distance from the runway threshold panel B is the sight picture for an aircraft on approach to a standard width runway, panel A to a wider than standard runway and panel C to a narrower than standard runway. Join our community for exclusive benefits: Access pilot information, participate in sweepstakes, enjoy legal & medical services, discounts, and enhance your aviation journey! Understand the causes of these illusions and remain always alert for them. Take the opportunity to understand and then experience spatial disorientation illusions in a device such as a Barany chair, a Vertigon, or a Virtual Reality Spatial Disorientation Demonstrator
By now, you already know the solution: trust your instruments. Faith in your instruments will help you break through just about any night flying illusion so you can enjoy the beauty and peace of a quiet and safe night flight.Rain on the windscreen can create an illusion of being at a higher altitude due to the horizon appearing lower than it is
If you do become disoriented or feel unsure about your rate of descent, remember that it is better to do a go around than try to force a potentially unsafe landing. Next is white balancing. With your white balance, you want your temperatures to run cooler. To do this, set your white balance at 3200K. At this temperature, your white balance achieves a moonlight look. You whites need to have a cooler, blueish look. Since moonlight is often thought to have a blue hue to it, it helps sell the illusion. Post-production
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Pilots cannot completely prevent undesirable sensations, but through training and awareness, pilots can ignore or suppress them by developing absolute reliance on the flight instruments Utilize the Visual Descent Point (VDP) found on many non-precision instrument approach procedure charts Immerse yourself in a world of aviation insights: Explore in-depth articles, watch engaging videos, listen to enlightening podcasts, and join informative webinars. Always avoid abrupt maneuvers with your head, especially at night or in instrument conditions, while making prolonged constant-rate turns
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