(maximum 21 characters)

The point at which a change of speed (5% TAS or 0.01 Mach or more) or a change of level is planned, expressed exactly as in (2) above, followed by an oblique stroke and both the cruising speed and the cruising level, expressed exactly as in
(a) and (b) above, without a space between them, even when only one of these quantities will be changed.
Examples: LN/N0284A045 MAY/N0305Fl80 HADDY/N0420F330 4602N07805W/N0500F350 46N078W/M082F330 DUB180040/N0350M0840
A2-7
Change of flight rules (4)

(maximum 3 characters)

The point at which the change of flight rules is planned, expressed exactly as in (2) or (3) above as appropriate, followed by a space and one of the following:
VFR if from IFR to VFR IFR if from VFR to IFR
Examples:  LN VFR LN/N0284A050 IFR
(5)
Cruise climb (maximum 28 characters)

The letter C followed by an oblique stroke; THEN the point at which cruise climb is planned to start, expressed exactly as in
(2) above, followed by an oblique stroke; THEN the speed to be maintained during cruise climb, expressed exactly as in (a) above, followed by the two levels defining the layer to be occupied during cruise climb, each level expressed exactly as in (b) above, or the level above which cruise climb is planned followed by the letters PLUS, without a space between them.
Examples:  C/48N050W/M082F290F350 C/48N050W/M082F290PLUS C/52N050W/M220F580F620.
ITEM 16: DESTINATION AERODROME AND
TOTAL ESTIMATED ELAPSED TIME,
ALTERNATE AERODROME(S)

Destination aerodrome and total estimated elapsed time (8 characters)

INSERT  the ICAO four-letter location indicator of the destination aerodrome followed, without a space, by the total estimated elapsed time,
OR,  if no location indicator has been assigned,
INSERT  ZZZZ followed, without a space, by the total estimated elapsed time, and SPECIFY in Item 18 the name of the aerodrome, preceded by DEST/ .
Note.— For a flight plan received from an aircraft in flight, the total estimated elapsed time is the estimated time from the first point of the route to which the flight plan applies.
Alternate aerodrome(s) (4 characters)
INSERT  the ICAO four-letter location indicator(s) of not more than two alternate aerodromes, separated by a space, 
OR,  if no location indicator has been assigned to the alternate aerodrome, 
INSERT  ZZZZ and SPECIFY in Item 18 the name of the aerodrome, preceded by ALTN/   . 

ITEM 18: OTHER INFORMATION

INSERT  0 (zero) if no other information, 
OR,  any other necessary information in the preferred sequence shown hereunder, in the form of the appropriate indicator followed by an oblique stroke and the information to be recorded: 
EET/  Significant points or FIR boundary designators and accumulated estimated elapsed times to such points or FIR boundaries, when so prescribed on the basis of regional air navigation agreements, or by the appropriate ATS authority. 
Examples: EET/CAP0745  XYZ0830 EET/EINN0204 
RIF/  The route details to the revised destination aerodrome, followed by the ICAO four-letter location indicator of the aerodrome. The revised route is subject to reclearance in flight. 
Examples: RIF/DTA  HEC  KLAX RIF/ESP G94 CLA APPH RIF/LEMD 
REG/  The registration markings of the aircraft, if different from the aircraft identification in Item 7. 

SEL/  SELCAL Code, if so prescribed by the appropriate ATS authority. 
OPR/  Name of the operator, if not obvious from the aircraft identification in Item 7. 
STS/  Reason for special handling by ATS, e.g. hospital aircraft, one engine inoperative, e.g. STS/HOSP, STS/ONE ENG INOP. 
TYP/  Type(s) of aircraft, preceded if necessary by number(s) of aircraft, if ZZZZ is inserted in Item 9. 
　
中國(guó)航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：Rules of the Air and Air Traffic Services(134)