FAA Sport Pilot Airplane (SPA)Human Factors and ADMMedium
During cruise flight, a pilot's engine suddenly begins running rough. The pilot's heart rate increases sharply, palms become sweaty, and attention narrows immediately onto the engine instruments. This physiological response is best described as which of the following?
- AA symptom of hypoxic hypoxia
- BA hazardous attitude requiring an antidote
- CChronic stress from cumulative life pressures
- DAn acute stress reaction (fight-or-flight response)
Show answer & explanationAnswer & explanation
Correct answer: D. An acute stress reaction (fight-or-flight response)
The described physical reactions — increased heart rate, sweating, and narrowed attention — are classic signs of the body's acute stress response, often called the fight-or-flight reaction, triggered by a sudden perceived threat. In moderate amounts this response can sharpen performance, but excessive stress can degrade decision-making if not managed.
Why the other options are wrong
- A. Hypoxia symptoms include euphoria, cyanosis, and impaired judgment from low oxygen, not stress hormones.
- B. Hazardous attitudes are thought patterns like invulnerability or macho, not physiological stress responses.
- C. Chronic stress builds over time from ongoing life pressures, not a sudden in-flight event.
Acute Stress Reaction
The body's immediate physiological response to a perceived threat, involving adrenaline release, increased heart rate, and narrowed attention (fight-or-flight).
- Triggered by sudden, unexpected events like emergencies
- Can improve short-term performance but may cause tunnel vision if excessive
- Differs from chronic stress, which builds from ongoing life pressures over time
Memory trick: Heart races, palms sweat — that's fight-or-flight, not a bad attitude yet.