What information can the isobars on a weather chart tell us?
From the isobars you can deduce wind speed and direction as well as the location of the high and low pressure areas. Air flows counterclockwise around a low pressure area and clockwise around a high pressure area. When the isobars are closer, the wind is stronger.
Temperature nor jet streams are indicated by isobars.
Drag of a paraglider depends on
Drag is not dependent on temperature, nor wind direction.
See the Aerodynamics chapter.
Which of the following statements about a Nautical Mile (NM) is not correct?
A NM is 1852 meter.
A statute mile is 1609 meter.
See the paragraph on Navigation.
During which part of the flight is the angle of attack so large that the airflow around the airfoil is no longer laminar but instead 'breaks' and becomes turbulent?
The air flow around an airfoil 'breaks' (the paraglider stalls) when the angle of attack becomes too high, for example with full brakes on. In all other answers the airspeed is high and therefore the angle of attack is much smaller, nowhere close to the stall point.
See the sections on deep stall and stall in the Aerodynamics chapter.
FL095 is...
FL095 means Flight Level 9500 feet. Flight level is an aircraft's altitude at standard air pressure indicated in hundreds of feet.
Most paragliders nowadays have short rods in the leading edge. Why are these there?
Rods in the leading edge ensure that the cells are kept in shape and open. Therefore the air can flow in easily during take-off.
What is the purpose and meaning of the acronym IMSAFE?
IMSAFE is used throughout aviation to assess your fitness to pilot an aircraft.
The acronym is: Illness, Medication, Stress, Alcohol, Fatigue and Emotion.
For more information read the chapter on Basic techniques.
What is happening here?
The left tip of the canopy is tangled in the lines. This is called a cravat (from the French for 'tie').
What is the approximate minimum breaking strength of a tow line?
See the chapter on equipment. 1 kN equals a force of 100 kg. The breaking strength should of course not be equal to or below the weight of an average paraglider. Therefore 6 kN or 600 kg is the only feasible answer.
Your wing collapses on the right hand side. What is the first thing you do?
Most collapses will reinflate spontaneously. Therefore it is most important to keep your course by weightshifting and applying a bit of brake if necessary and avoid obstacles or other pilots. Then look up and see if you need to solve the collapse.
See the section on Incidents in flight in the chapter on Advanced flying.
Your result is shown above.