For this trip, the GS is 106 knots and the total time is 35  minutes (30 minutes plus 5 minutes for climb) with a fuel  burn of 4.7 gallons. Refer to the flight log in  Figure 16-26  for the time between checkpoints.  met, but actual time cannot be given because of inadequate  communication. The FSS specialist who accepts the flight  plan does not inform the pilot of this procedure, however.  Figure 16-27  shows the flight plan form a pilot files with the  FSS. When filing a flight plan by telephone or radio, give  the information in the order of the numbered spaces. This  enables the FSS specialist to copy the information more  efficiently. Most of the fields are either self-explanatory  or non-applicable to the VFR flight plan (such as item 13).  However, some fields may need explanation.  As the trip progresses, the pilot can note headings and time  and make adjustments in heading, GS, and time.  Filing a flight plan is not required by regulations; however, it  is a good operating practice since the information contained  in the flight plan can be used in search and rescue in the  event of an emergency.  Flight plans can be filed in the air by radio, but it is best to  file a flight plan by phone just before departing. After takeoff,  contact the FSS by radio and give them the takeoff time so  the flight plan can be activated.  When a VFR flight plan is filed, it is held by the FSS until  1 hour after the proposed departure time and then canceled  unless: the actual departure time is received; a revised  proposed departure time is received; or at the time of filing,  the FSS is informed that the proposed departure time is  • Item 3 is the aircraft type and special equipment. An  example would be C-150/X, which means the aircraft  has no transponder. A listing of special equipment  codes is found in the Aeronautical Information Manual  (AIM).  • Item 6 is the proposed departure time in UTC  (indicated by the “Z”).  • Item 7 is the cruising altitude. Normally, “VFR” can be  entered in this block since the pilot chooses a cruising  altitude to conform to FAA regulations.  Filing a VFR Flight Plan  Figure 16-27.  Domestic flight plan form.  16-21  X  N123DB  C150/X  115  CHK, CHICKASHA  AIRPORT 1400  5500  Chickasha direct Guthrie  GOK, Guthrie Airport  Guthrie, OK  35  4  45  1  Jane Smith  Aero Air, Oklahoma City, OK (405) 555-4149  Red/White  McAlester 