Pilot School at the Verdant Meadows airstrip
The Pilot School, also known as the Flying School, is the most important and hardest of the vehicle schools in Grand Theft Auto: San Andreas, unlocked after "Verdant Meadows" with the purchase of Verdant Meadows. Unlike all the others, completion of all the lessons with at least Bronze medals is required to continue the storyline.
Pilot school consists of several lessons teaching the player how to fly planes, helicopters, and at the end - how to use a parachute. The work pays off later when the Rustler, Stunt Plane, and Hunter are unlocked respectively for achieving Bronze, Silver and Gold. By completing lessons, the player will earn/increase their Flying Skill and recieve a "Pilot License" allowing you to enter airports.
Lessons
The ten lessons to pass are:
Takeoff
You'll have to lift-off and pass to three coronas to complete the test. Finish in 30 seconds or below to get a Gold medal.
Land Plane
Fly through the corona and activate the landing gear and land in the designated place and avoid to let the nose of the Rustler touch the ground or it'll incur damage penalties. Finish in 30 seconds or below to get Gold medal.
Circle Airstrip
Take off and climb to pass through the first corona. Then, fly a circular course through the field. Do this in a minute to get a Gold medal.
Circle Airstrip and Land
Do the same routine on the last test but land to the designated area. Finish this in 1 minute and 20 seconds to get a Gold Medal
Helicopter Takeoff
Piloting a Hunter, press X to accelerate to climb upward. Release X to level off. After that, rotate the helicopter 180 degrees. Push the left analog stick forward to tilt the helicopter at a 45 degrees and press and hold X to go forward. Fly through the corona to pass the test.
Land Helicopter
Pass through the first corona by pushing the left analog stick foward and pressing and holding X. After that, land on the runway to pass the test.
Destroy Targets
Destroy three targets in the field and then two trucks running at the back of the Snake Farm. Then, destroy remaining vans in the field and land the helicopter at the designated area. Finish this in 1 minute and 30 seconds to get a Gold Medal.
Loop-the-Loop
To do a loop-to-loop is to press the analog stick down and pass through 2 coronas in 21 seconds to get a Gold Medal.
Barrel Roll
Fly through the first corona, then push the left analog stick directly left quickly to do the barrel roll. After that, fly through the last corona to finish the test. Finish the test in 18 seconds or less to get a Gold Medal.
Parachute Onto Target
Skydive down to the target and deploy the Parachute, glide to the target zone to get a medal. Landing at the center of the target zone in 55 seconds or less will get you a Gold medal.
Rewards
The reward for all Bronze is a Rustler, for all Silver a Stunt Plane and for all Gold a Hunter.
Completion of all tests with at least a bronze rating will award the player a pilot's licence. This will allow easy access to runway areas of airports and unlock all planes. Prior to doing this, it is possible to access the runway areas by parking a vehicle next to the fence and climbing over, or by using a Packer's "ramp" - the Easter Bay International Airport runway can also be accessed via a glitch by simply punching the access gate - however only the aircraft at the Los Santos International Airport can be opened and flown prior to completing flight school (as can helicopters parked in accessible locations such as Bayside Marina and north of Verdant Meadows).