In the United States, the minimum age requirement for obtaining a private pilot certificate is 17 years old.

A logbook is not a required document for obtaining a student pilot certificate. The required documents include proof of identity, medical certificate, and written exam score.

The minimum flight time requirement for obtaining a private pilot certificate is 40 hours.

Aircraft systems is not a required subject for the private pilot written exam. The required subjects include aerodynamics, meteorology, and navigation.

The minimum passing score for the private pilot written exam is 70%.

Soft-field takeoff and landing is not a required maneuver for the private pilot practical test. The required maneuvers include short-field takeoff and landing, crosswind takeoff and landing, and steep turns.

The minimum flight time requirement for obtaining a commercial pilot certificate is 250 hours.

Aircraft systems is not a required subject for the commercial pilot written exam. The required subjects include aerodynamics, meteorology, and navigation.

The minimum passing score for the commercial pilot written exam is 70%.

Soft-field takeoff and landing is not a required maneuver for the commercial pilot practical test. The required maneuvers include short-field takeoff and landing, crosswind takeoff and landing, and steep turns.

The minimum flight time requirement for obtaining an airline transport pilot certificate is 1,500 hours.

Aircraft systems is not a required subject for the airline transport pilot written exam. The required subjects include aerodynamics, meteorology, and navigation.

The minimum passing score for the airline transport pilot written exam is 70%.

Soft-field takeoff and landing is not a required maneuver for the airline transport pilot practical test. The required maneuvers include short-field takeoff and landing, crosswind takeoff and landing, and steep turns.

The minimum age requirement for obtaining an airline transport pilot certificate is 23 years old.