Fit to fly: aeromedical basics

1. Step 1 of 3

   IMSAFE, the pilot preflight

   Letter	Ask yourself
   I — Illness	Am I sick, even mildly? A head cold blocks ears and sinuses at altitude.
   M — Medication	Am I on anything that dulls, drowses or was started recently?
   S — Stress	Is something on the ground loud enough in my head to follow me up?
   A — Alcohol	8 hours bottle-to-throttle is the legal floor; impairment lasts longer.
   F — Fatigue	Short sleep degrades judgement first, and judgement is what flying spends.
   E — Emotion / Eating	Am I fuelled, hydrated, and actually fit to concentrate for the whole flight?

   Any honest “no” is a reason to stay on the ground today. The check takes thirty seconds and costs nothing.

2. Step 2 of 3

   The two traps that find gyroplane pilots

   Dehydration and sun

   Much gyroplane flying is open-cockpit, in summer, in wind and full sun. Dehydration builds slowly and reads as headache, fatigue and slowed thinking, which is exactly the state you cannot afford in a traffic pattern. Drink before you are thirsty; take water on cross-countries.

   Altitude, quietly

   Sport pilot flying stays below 10,000 ft MSL, where true hypoxia is rare, but night vision degrades from a few thousand feet up and a smoker's or tired pilot's margin shrinks earlier. The fix is honesty about how you feel and generous margins over high terrain.

   The driver's license is not a loophole. Flying sport pilot on a driver's license still requires you to be medically fit to fly. 14 CFR 61.53 grounds any pilot, medical certificate or not, who knows of a condition that would make them unable to operate safely. The license changes the paperwork, not the responsibility.

3. Step 3 of 3

   Self-grounding is a skill

   Every experienced pilot has cancelled a flight they wanted to make: tired, dehydrated, distracted, coming down with something. Nobody remembers those cancellations as failures. The pattern to build from the first lesson is simple: run IMSAFE, believe your own answers, and treat the decision to stay on the ground exactly like the weather decision, made early and without drama.

   Make it mechanical

   • Run IMSAFE at the same moment every time, before preflighting the aircraft.
   • Pair it with the weather brief: pilot check, then weather check, then aircraft check.
   • If you find yourself arguing with the checklist, the checklist has already answered.

   That completes the prep course's core. Review any lesson, or take the next step and meet an instructor.

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FAA Pilot's Handbook of Aeronautical Knowledge chapter 17 and 14 CFR 61.53 (public domain). Medical fitness questions belong with an aviation medical examiner.