The Private Pilot-Glider Exam

Question 1

Who is primarily responsible for maintaining an aircraft in airwaorthy condition?

Accepted Answer

Pilot-in command

Answer

According to aviation regulations (e.g., FAR 91.403(a)), the owner or operator of an aircraft is primarily responsible for ensuring the aircraft is maintained in an airworthy condition. While the pilot-in-command has the final authority and responsibility to determine if the aircraft is airworthy for each flight, the ongoing maintenance responsibility rests with the owner or operator.

Question 2

For the aerotow of a glider that weighs 700 pounds, which towrope tensile strength would require the use of safety links at each end of the rope?

Accepted Answer

1,450 pounds

Answer

FAA regulations (FAR 91.309(a)(3)) specify that the tensile strength of the safety link at each end of the towrope must not exceed 200% of the maximum certificated operating weight of the glider. For a 700-pound glider, the maximum allowable safety link strength is 1400 pounds (200% of 700). Therefore, a towrope tensile strength of 1,450 pounds exceeds this limit, requiring the use of safety links to ensure the rope breaks before damaging the aircraft.

Question 3

An indication that the glider has begun a turn too soon on aerotow is that the

Accepted Answer

towplane?s nose is pulled to the outside of the turn

Answer

During an aerotow, the glider should follow the towplane smoothly. If the glider initiates a turn too soon or turns too sharply, it will exert a side load on the towrope. This force will pull the towplane's nose towards the outside of the turn, indicating that the glider is not properly following the towplane's flight path.

Question 4

What conditions are necessary for the formation of thunderstorms?

Accepted Answer

High humidity, lifting force, and unstable conditions

Answer

The three essential ingredients for thunderstorm formation are sufficient moisture (high humidity) to form clouds and precipitation, an unstable atmosphere that allows air to rise rapidly, and a lifting mechanism (lifting force) to initiate this upward movement. These conditions lead to the development of towering cumulonimbus clouds characteristic of thunderstorms.

Question 5

If the pitot tube and outside static vents become clogged, which instruments would be affected?

Accepted Answer

The altimeter, airspeed indicator, and vertical speed indicator

Answer

The pitot tube provides ram air pressure for the airspeed indicator, while the static vents provide ambient atmospheric pressure to the altimeter, airspeed indicator, and vertical speed indicator. If both become clogged, all three of these pitot-static instruments will malfunction or provide incorrect readings, as they rely on accurate pressure differentials for their operation.

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The Private Pilot-Glider Exam