Wire running to WSC 12-volt electrical system Electric gloves Figure 1-21. Motorcycle gloves and socks hooked to the 12-volt WSC electrical system keep the pilot and  passenger warm. 1-13 Because checklists may not be practical in the open fl ight  deck during fl ight, and depending on the manufacturer and  make/model of the WSC aircraft, checklists used for climb,  en route, and landing may be placards in the flight deck that  can be read by the pilot in flight or used on kneeboards as  appropriate. Checklists must be secured to prevent their fl ying  through the propeller during taxi or fl ight. require significant strength and endurance. This signifi cantly  adds to fatigue, as discussed in the Pilot’s Handbook of  Aeronautical Knowledge. This is accomplished all the time by  experienced pilots, but it is a workout. If this type of workout  is combined with dehydration in a desert environment, a  greater than anticipated headwind, or flying an unfamiliar  cross-country route, the added aeromedical risk factors could  lead to a fatal error chain. An additional written checklist that can be used on the ground  after landing is taxi, engine shutdown, postfl ight inspection,  and securing aircraft. A number of physiological effects can be linked to fl ying.  Some are minor, while others are important enough to  require special attention to ensure safety of flight. In some  cases, physiological factors can lead to infl ight emergencies.  Some important medical factors that a WSC pilot should  be aware of include hypoxia, hyperventilation, middle ear  and sinus problems, spatial disorientation, motion sickness,  carbon monoxide poisoning, stress and fatigue, dehydration,  heatstroke, and hypothermia. Other factors include the effects  of alcohol and drugs, and excess nitrogen in the blood after  scuba diving. Hypothermia is an important factor and knowledge  requirement in the WSC Practical Test Standards. Cold  temperatures for long periods reduce the inner body core  temperature when the heat produced by the body is less than  the amount of heat being lost to the body’s surroundings.  This loss of heat is highly accelerated in WSC open fl ight  decks with wind chill. The first symptom of flying a WSC  aircraft is cold hands because of exposure to wind chill.  Symptoms continue with other parts of the body becoming  cold until the entire body feels cold. Hypothermia results in  weakness, shivering, lack of physical control, and slurred  speech followed by unconsciousness and death. Dressing  warm and/or aircraft heating systems to help the pilot remain  warm during flight prevents hypothermia. Motorcycle  gloves and socks that run off the aircraft electric system  are commonly used and can keep a pilot from getting cold.  [Figure 1-21]  Also, carrying an appropriate survival kit  A prerequisite to this chapter is the aeromedical factors  portion of the Pilot’s Handbook of Aeronautical Knowledge  (FAA-H-8083-25)  which provides detailed  information a pilot must  consider in all flight  operations. All of the  aeromedical factors  described in that book  are applicable to WSC.  However, the following  are additional topics  applicable to WSC not  specifi cally covered. Because the WSC  aircraft moves weight  through pilot input, there  is significant arm and  upper body strength  required to fly a WSC  aircraft, especially in  turbulence. If flying  a cross-country flight  midday in moderate  turbulence for more than  an hour, a pilot would   Medical Factors   Hypothermia   Fatigue