FAA Study Guide 2026

Towering cumulus clouds indicate rapidly developing convective activity that can quickly become thunderstorms with lightning and severe turbulence, requiring immediate landing.

FAA regulation 14 CFR Part 107.23(b) specifically addresses dropping objects from a small unmanned aircraft. It states that 'No person may... allow an object to be dropped from a small unmanned aircraft in a manner that creates an undue hazard to persons or property.' The primary concern is safety, ensuring that any dropped object does not pose a risk to people or property on the ground.

RAIM (Receiver Autonomous Integrity Monitoring) is a crucial function of GPS receivers that verifies the integrity of the GPS signals. If RAIM capability is lost, the GPS receiver cannot detect potential errors in the satellite signals, meaning the pilot has no assurance that the displayed position is accurate. In such a scenario, the GPS system should not be relied upon for navigation, and pilots must revert to other approved navigation methods.

High density altitude reduces air density, which decreases rotor efficiency; motors must work harder to produce the same lift, especially under payload.

To determine true airspeed, consult the aircraft's performance chart (Figure 35) for the specified power setting and pressure altitude. First, locate the 65% maximum continuous power section and the 9,500-foot pressure altitude line. Then, apply the temperature correction for 36°F below standard, which typically involves moving along the chart's temperature correction lines or interpolating. Following these steps on the chart reveals an approximate true airspeed of 183 MPH.

'Short final' is a standard radio call indicating the aircraft is approximately one-half mile or less from the runway threshold on final approach.