to round out too high until attaining familiarity with the proper  height for the correct round out. To aid in determining the  proper round out point, continue a constant approach descent  until the landing lights reflect on the runway and tire marks on  the runway can be seen clearly. At this point, the round out is  started smoothly and the throttle gradually reduced to idle as  the airplane is touching down.  [Figure 10-6]  During landings  without the use of landing lights, the round out may be started  when the runway lights at the far end of the runway first appear  to be rising higher than the nose of the airplane. This demands  a smooth and very timely round out and requires that the pilot  feel for the runway surface using power and pitch changes,  as necessary, for the airplane to settle slowly to the runway.  Blackout landings should always be included in night pilot  training as an emergency procedure. Perhaps the greatest concern about flying a single-engine  airplane at night is the possibility of a complete engine failure  and the subsequent emergency landing. This is a legitimate  concern, even though continuing flight into adverse weather  and poor pilot judgment account for most serious accidents. If the engine fails at night, there are several important  procedures and considerations to keep in mind. They are  as follows: Night operations present additional risks that must be  identified and assessed. Night flying operations should  not be encouraged or attempted, except by pilots that are  certificated, current, and proficient in night flying. Prior to  Chapter Summary 10-9 Night Emergencies Figure 10-6.  Roundout when tire marks are visible. • Maintain positive control of the airplane and  establish the best glide configuration and airspeed.  Turn the airplane towards an airport or away from congested areas. • Check to determine the cause of the engine malfunction,  such as the position of fuel selectors, magneto switch, or  primer. If possible, the cause of the malfunction should  be corrected immediately and the engine restarted. • Announce the emergency situation to air traffic control  (ATC) or Universal Communications (UNICOM). If  already in radio contact with a facility, do not change  frequencies unless instructed to change. • If the condition of the nearby terrain is known and is  suitable for a forced landing, turn towards an unlighted  portion of the area and plan an emergency forced  landing to an unlighted portion. • Consider an emergency landing area close to public  access if possible. This may facilitate rescue or help,  if needed. • Maintain orientation with the wind to avoid a  downwind landing. • Complete the before landing checklist, and check  the landing lights for operation at altitude and turn  ON in sufficient time to illuminate the terrain or  obstacles along the flightpath. The landing should  be completed in the normal landing attitude at the  slowest possible airspeed. If the landing lights  are unusable and outside visual references are not  available, the airplane should be held in level-landing  attitude until the ground is contacted. • After landing, turn off all switches and evacuate the  airplane as quickly as possible.