IFR VFR - MultiMania

OTS:
2 flows: Europe Westbound Morning Departure (peak: 11:30 ->18:00)
North-America Eastbound Evening Departure (peak: 01:00 ->08:00)
… at 30°W (timing reference for OTS/MNPS)
Changeover period: to ensure smooth day/night transition -> btwn 08:01->11:29 & btwn 18:01 -> 00:59.
Use of RVSM & Mach Number technique.
System is constructed every 12 hours by the OAC (Oceanic Area Ctl center):
The agreed OTS is then promulgated as the “NAT Track Message” via an AFTN (Aero Fix
Telecom Network)
RMK/ OTS are NOT mandatory!!
NAT TRK MSG:
� Full details of OTS (coord, FL expected, entery…)
Day-time: The most northerly TRK: A – then: B - …
Night-time: The most southerly TRK: Z – then: Y - …
Ex: Day-Time OTS Westbound 1130UTC – 1800UTC at 030°W
RMK/ OCA planners can take account of Operators’ prefered routes => Prefered Route Msg PRM
PTS (Polar TRK Structure):
Consist of 10 fixed TRK in Reykjavick & 5 fixed TRK in Bodo OCA
FPL: Item 15 (route) “PTS + trk nbr” (Other Flt must specify full trk).
Each pt where M or FL change is planned must be specified as “Lat & Long” fallowed by
“PTS + trk code nbr”.
Abbreviated Clearances:
Must read back the Msg & full details of the TRK specified by the ‘trk code nbr’.
Abbreviated Position Reports:
By replacing the normal “lat long” report with the word “Polar + trk code nbr”. Normally
made at the significant pts of the PTS trk
RMK/ NAT: surface horizontale (plusieurs FIR)
MNPS : Volume d’air vertical (FL290�FL410)
12. Mean Wind Component & Mean Fuel Flow Calculation
MeanComponent
=
∑
FactoredCompoment
TotalTime
FactoredComponent=Time[hrs]*Component
Recall: FF=f(Alti, T, Pwr)
13. Fuel Efficiency Calculations
Fuel burned per unit distance flown over ground: Gross Fuel Flow (GFF)
GS
FF GFF=
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