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Metric FL and Mach Speed Accurate Changes


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Hi,

 

I was planning today a trip from EDDP-WSSS, the route will fly through Turkmenistan airspace which is metric as per attached photo (BODKA P130 MAMED B449 RANAH), PFPX added a step climb on BODKA with metric FL, however, it did not change back to imperial FL after leaving Turkmenistan at RANAH. I changed my payload to make no step climb at Turkmenista, PFPX ignored metric FL changes as you see in below 2nd FPL.

 

(FPL-BOX530-IS
-B77L/H-SDE2E3GHIJ5M1P2RWXYZ/LB1D1
-EDDP0530
-N0494F310 DCT DRN Z21 OMELO DCT GOLOP DCT ODNEM DCT BERVA DCT
 BALAP DCT NARKA DCT DINRO N743 UDROS UM859 KARDE UN644 ROLIN DCT
 TETRO DCT BARAD M747 BODKA/K0907S1010 P130 MAMED B449 RANAH L750
 ZB G202 RK/N0485F350 P628 IBANI L510 GURVI T1 BBS L759
 MIPAK/N0483F370 L759 PUT B579 VPL W531 VIH A464 ARAMA DCT
-WSSS1151 WMKK)

 

(FPL-BOX530-IS
-B77L/H-SDE2E3GHIJ5M1P2RWXYZ/LB1D1
-EDDP0530
-N0494F310 DCT DRN Z21 OMELO DCT GOLOP DCT ODNEM DCT BERVA DCT
 BALAP DCT NARKA DCT DINRO N743 UDROS UM859 KARDE UN644 ROLIN DCT
 TETRO DCT BARAD/N0490F330 M747 BODKA P130 MAMED B449 RANAH L750
 KADVI/N0485F350 L750 ZB G202 RK P628 IBANI L510 GURVI T1 BBS
 L759 MABUR/N0483F370 L759 PUT B579 VPL W531 VIH A464 ARAMA DCT
-WSSS1153 WMKK)

 

Real Life FPL

(FPL-BOX530-IS
-B772/H-SDE2E3GHIJ5M1P2RWXYZ/LB1D1
-EDDF0540
-N0483F310 DRN1S DRN Z21 OMELO DCT GOLOP DCT ODNEM DCT BERVA DCT BALAP DCT 
 NARKA DCT DINRO N743 UDROS UM859 RERVA/N0481F330 UM859 KARDE UN644 ROLIN/N0487F330 DCT 
 TETRO DCT BARAD M747 BODKA/K0899F330 P130 MAMED B449 RANAH/N0481F350 L750 BIROS/N0484F350 
 L750 ZB G202 RK P628 VIKIT/M083F350 P628 IBANI L510 GURVI/N0494F350 T1 BBS/M084F350 L759 
 MIPAK/N0496F350 L759 PUT B579 REBED/M084F350 B579 VPL/N0496F350 W531 VIH A464 ARAMA
-WSSS1057 WMKK)

 

 

I noticed same thing with speed changes to Mach during NAT operation, following flight EDDF-KORD as per real life FPL

 

(FPL-AAL9724-IS
-B772/H-SDE1E3FGHIJ3J5M1P2RWXYZ/LB1D1
-EDDF1140
-N0483F300 OBOKA2G OBOKA Z29 TORNU DCT GODOS P1 ROKAN N96 NEXUS UP59 
 BALIX/M083F350 DCT 60N015W 61N020W 62N030W 62N040W 61N050W DCT 
 URTAK/N0473F360 N758A VANSI DCT SSM/N0448F240 WYNDE2
-KORD0905 KMKE KIND)

 

where PFPX

(FPL-AAL9724-IS
-B772/H-SDE1E3FGHIJ3J5M1P2RWXYZ/LB1D1
-EDDF0840
-N0489F320 DCT OBOKA Z29 TORNU DCT GODOS/N0485F360 P1 ROKAN N96
 NEXUS UP59 RUGID/N0488F340 UP59 BALIX DCT 60N015W
 61N020W/M084F360 62N030W 62N040W/M084F380 61N050W DCT URTAK
 N758A VANSI DCT SSM/N0485F400 WYNDE2
-KORD0816 KMKE)

 

 

What could be wrong? is it normal and I need to changed it manually? 

 

I am using PFPX 2.04 with following updates:

- RAD Restrictions and Directs 2103 by Sharky

- PFPX CruiseTables.dat By srcooke

- PFPX FIR.dat modification 1.0.3 By srcooke

 

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I have adjusted the Turkmenistan region to SA RVSM levels and uploaded a new file HERE

 

I do not believe there is an issue with the NAT exit, ICAO guidelines permit the use of Knot or Mach in the f/p submission. Oceanic portions of the route should be in Mach.

PFPX returns to Knot at the domestic entry, so neither the R/W or  PFPX entries appear incorrect.

 

Quote

Cruising speed—State true airspeed (TAS). Choose appropriate term:
1. Kilometers per hour, shown as “K” followed by four numbers (e.g., K0830).
2. Knots, expressed as “N” followed by four numbers (e.g., N0250).
3. Mach number, using the nearest hundredths of unit preceded by “M” (e.g., M082).
Note: FAA air traffic facilities do not accept speeds in metric terms.

 

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I updated the files but still PFPX will not change to metric at BODKA

 

(FPL-BOX530-IS
-B77L/H-SDE2E3GHIJ5M1P2RWXYZ/LB1D1
-EDDP0530
-N0486F310 DCT DRN Z21 OMELO DCT GOLOP DCT ODNEM DCT BERVA DCT
 BALAP DCT NARKA DCT DINRO N743 UDROS UM859 KARDE UN644 ROLIN DCT
 TETRO DCT BARAD M747 SUBUT/N0488F330 M747 BODKA P130 MAMED B449
 RANAH L750 BIROS/N0486F350 L750 ZB G202 RK P628 IBANI L510 GURVI
 T1 BBS L759 PUT B579 VPL W531 VIH A464 ARAMA DCT
-WSSS1123 WMKK)

 

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I have not yet achieved 'Kilometers per hour' linked to flight levels in feet.

 

Is there a requirement to use kilometers per hour posted in an official document as a deviation from ICAO practice?

 

The main correction posted is the flight-level correction.

 

 

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I really don't know and I did not see any such documents, am only following BOX real flight plan for that leg and I saw them changing to K speed. so maybe you know more than me

 

regarding FL, i tested it and made step climb in middle of Turkmenistan airspace, working well. thanks for efforts

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I'm no expert here Jehad so any input from a dispatcher on the issue would be welcome.

 

Previously the region would have used kilometers/meters, maybe with the change to RVSM flight levels they retained the speed format, but I'm not sure that is programmed into PFPX.

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