Page 182 - PPL-engelsk 2025

Human Performance

Especially if you have no horizon or something to focus your gaze on outside

the plane, you can get motion sickness. Be careful when reading maps.

If you feel the beginnings of discomfort, it is good to focus on something

distant, because then you let the visual input drown out the signals coming
from the balance organ.

It is not recommended that you as a pilot use medication for motion sickness,

as medications dull the senses (your passengers are welcome to use them,

however).

Anxiety and stress as well as the use of alcohol are reinforcing factors in the

onset of motion sickness.

If you have a passenger who is suffering from motion sickness, you should
reassure them, provide fresh air, fly as calmly as possible and give them a bag

to vomit into. Just letting the airsick person know that there is a safe place to

vomit can be reassuring.

Tell them where the vomit bag is during the briefing.

2.6.6.6 SCUBA diving

Scuba diving is diving with breathing equipment that supplies the diver with air

corresponding to the ambient pressure.

Such diving carries a risk of decompression sickness, which is why divers learn

specific ascent procedures if they have been to greater depths.

Nitrogen is found in the air we breathe (in the air around us and in our diving

tanks).

During diving, large amounts of nitrogen are absorbed into the body's tissues.

This is because the diver breathes at a pressure that is higher than at sea level.

The amount of dissolved nitrogen depends on the depth of the dive and the

time the dive lasts. The deeper and longer the dive, the more nitrogen is

absorbed into the body.

Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 182