IMSAFE is the Aeronautical Information Manual's recommended

mnemonic A mnemonic device ( ), memory trick or memory device is any learning technique that aids information retention or retrieval in the human memory, often by associating the information with something that is easier to remember. It makes use of e ...

for

aircraft An aircraft ( aircraft) is a vehicle that is able to flight, fly by gaining support from the Atmosphere of Earth, air. It counters the force of gravity by using either Buoyancy, static lift or the Lift (force), dynamic lift of an airfoil, or, i ...

pilots to use to assess their fitness to fly.

Definition

The mnemonic is: * Illness - Is the pilot suffering from any

illness A disease is a particular abnormal condition that adversely affects the structure or function (biology), function of all or part of an organism and is not immediately due to any external injury. Diseases are often known to be medical condi ...

or symptom of an illness which might affect them in flight? * Medication - Is the pilot currently taking any

drug A drug is any chemical substance other than a nutrient or an essential dietary ingredient, which, when administered to a living organism, produces a biological effect. Consumption of drugs can be via insufflation (medicine), inhalation, drug i ...

s (prescription or over-the-counter)? * Stress - Is the pilot overly worried about other factors in their life? The psychological pressures of everyday living on pilot fatigue can be a powerful distraction and consequently affect a pilot's performance. * Alcohol - Although legal limits vary by jurisdiction (0.04 BAC, any consumption in the past 8 hours or current impairment in the USA), the pilot should consider their alcohol consumption within the last 8 to 24 hours. * Fatigue - Has the pilot had sufficient

sleep Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain Sensory nervous system, sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with th ...

and adequate nutrition? * Emotion - Has the pilot fully recovered from any extremely upsetting events such as the loss of a family member? 'E', while defined under the FAA as standing for Emotion, is considered by other international Aviation Authorities such as the CAA and CASA to stand for Eating, including ensuring proper hydration, sustenance, and correct nutrition. In some instances one might also find the acronym written as IAMSAFE in which the first 'A' stands for Alimentation (the provision of nourishment).http://www.win.tue.nl/~jldejong/gliding/Presentations/Opfriscursus-RFI-TMG/2008/HumanFactorsandMotorgliding-080419.pdf

References

Aviation mnemonics Aviation safety {{aviation-stub