GPC Study Guide 2026
Everything you need to pass the GPC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 GPC Exam Format at a Glance
📚 GPC Topics to Study (21)
✍️ Sample GPC Questions & Answers
1. A steady green light gun signal directed at a glider on the ground means:
A steady green light from the tower to an aircraft on the ground means cleared for takeoff.
2. What weather condition is indicated by lenticular clouds?
Lenticular clouds form in mountainous regions and indicate strong, turbulent winds aloft.
3. What is the recommended action if a glider’s canopy opens unexpectedly in flight?
If a glider's canopy opens unexpectedly in flight, the immediate recommended action is to reduce airspeed. This minimizes the aerodynamic forces acting on the canopy, making it safer and easier to attempt to close and secure it. Maintaining control and addressing the immediate hazard is paramount for pilot safety and flight stability.
4. When should a pilot consider deploying the emergency parachute system?
The parachute is a last resort for unrecoverable situations (e.g., structural failure or mid-air collision).
5. If the static port on a glider becomes blocked during flight, how will the altimeter and airspeed indicator be affected?
If the static port becomes blocked, the altimeter will no longer sense changes in ambient air pressure and will remain fixed at the altitude of the blockage. The airspeed indicator will also be affected; it will read lower than the actual airspeed as the glider descends and higher than the actual airspeed as it climbs from the altitude where the blockage occurred, because the trapped static pressure is no longer correct for the current altitude.
6. A pilot is flying a glider with a published best glide ratio of 40:1 in still air. From an altitude of 5,280 feet above the ground, what is the maximum horizontal distance the glider can travel?
A glide ratio of 40:1 means the glider can travel 40 feet horizontally for every 1 foot of altitude lost. From 5,280 feet (1 statute mile) of altitude, the maximum horizontal distance is 40 times the altitude: 40 * 5,280 feet = 211,200 feet. This is equivalent to 40 statute miles.