PRODUCT CODE Av3 FLIGHT PLANNING EXAM 2 WORKING. by Rob Avery

Transcription

1 FP exam 2 working. PRODUCT CODE Av3 FLIGHT PLANNING EXAM 2 WORKING by Rob Avery INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES.

2 Flight Planning Practice exam 2 - Working Page 1. Q1. 45 kt/isa Z Fix GW kg FL200 FL140 3 /24 anm Refer page 2-9 for climb data. Curtin BRW kg 20 nm 26 nm INTELLECTUAL PROPERTY OF AVFACTS (ROB AVERY) Q2. 46 nm SL - FL min 55 anm SL - FL140 8 min 31 anm Difference 3 min 24 anm +45 kt TWC +2 nm Total 3 min 26 gnm So the aircraft will reach FL nm from Curtin. Answer a best! Check LW YPAS... BRW FF 9400 = LW kg OKAY! Check ZFW... BRW BR kg = OKAY! Item Fuel Summary kg So we can depart Cairns at kg without exceeding the MZFW of kg, or exceeding the Max LW YPAS of kg. Payload is ZFW - Basic Op GW ( i.e kg in this case) = kg. Answer D is best! Note: 1. There is no need to carry the alternate (Yulara - Ayres Rock) if you are carrying the weather holding for your destination (Alice Springs). 2. Always check ZFW (spar limit) when the aircraft is at takeoff point- NOT at the ramp. FF 9400 VR 940 FR 3300 Wx hold YPAS 2000 Traffic YPAS 1000 Taxi In 100 Min BR kg FAQ Why do we check ZFW at the Brake release GW, not Ramp GW. Answer Because ZFW is calculated around the aircraft being in flight when there is lift stress on the spar. There is no lift stress on the spar when we taxi. First lift stress occurs as we rotate.

3 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 2. Q3. Refer B727 manual page Eng Holding. The GW will be 1000 kg lighter than the arrival GW in the holding pattern ( i.e kg). We must base the FF on the GW of the aircraft when it is half way through the holding period to get an average FF. GW FL kg 1230 kg/eng/hr ISA 3 engine FF is 1230 x 3 = 3690 kg/hr. On an ISA -10 C the FF will be 2% lower at 3616 kg/hr. for INTER (30 min) will be 1808 kg. Answer B closest! Q4. Refer B727 manual page reduce cruise thrust limits by 9000 kg! So we must be pretend that the aircraft GW at TopC is 9000 kg heavier than the kg given, to account for the extra drag having the tailskid extended. So TopC GW to use in assessing altitude capability is kg in this case. The track is WESTERLY, so you can eliminate the EASTERLY IFR levels of FL290/FL330/FL370. FL Mach ISA+10 FL kg FL kg Result: FL350 is NOT available as the TopC GW (81, 000 kg) is too high. FL310 is available. Answer B is best! Q5. Refer B727 manual page 5-27 Landing Gear Down. GW ISA ISA+5 ISA kg ft kg ft Tracking EAST the highest IFR level is FL 210. Answer E is best! Q6. Refer to B727 manual page 5-2, note 4. Answer is FL250. This is a regulation... see CAO s. Answer C is best! Av3:FPEx2work Plane Logic

4 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 3. Q7. Refer B727 manual page 1-17, normal ops fuel policy Departure to Destination. Item kg FF 9000 VR 900 FR 3300 Wx Hold Dest 2000 Traf hold Dest 1333 Taxi OUT 150 Taxi IN 100 Min ramp FOB kg Answer E is best! Q8. Refer B727 manual page 1-17, normal ops fuel policy Departure Destination Alternate. Item kg FF VR 1450 FR (Alt req d) 2250 TEMPO Wx Hold Alt 4000 Traffic hold Alt 1000 Taxi OUT 150 Taxi IN 100 Min ramp FOB kg Answer D is best! FAQ 1. Why is the fixed reserve 2250 kg, we are not in-flight?answer Refer B727 manual page 1-17 Dep to Dest/Dest to Alternate. FR is 2250 kg if alternate is planned. 2. If there had been traffic holding at the destination, would we have to carry this separately, or would the alternate traffic holding cover this. No, you must carry each separately. You may have to hold at the destination prior to making you approach (wait your turn). INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES.

5 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 4. Q9. Refer to B727 manual gear down cruise tables on page TIPSI GW kg 57T TopD GW kg FL kt/isa-9 LRC Mach kt 319 kt FF 5115 kg/hr SGR kg 110 M/125 nm Destination The identifies the LRC Mach number that you will be cruising at, and the FF/engine/hr. Expect FF in the 5000 kg/hr to 6000 kg/hr range, and around 280 kt to 300 kt. The left hand column on the cruise data page shows the ISA TAT for the various flight levels. Use this to identify the ISA deviation and apply it to get a corrected FF in non-isa conditions. Approx SAR used to get is 20 kg/air nm. Correct for wind by multiplying wind component by Planned GW at TopD is 2004 kg lighter than GW given at TIPSI (i.e kg). Answer E is best! Q10. FL350 ISA+5 Max TopC GW kg 200 kg Start of climb GW kg Mach T 466 kt 429 kt FL kt/isa-3 HA kg FF 4495 SGR required 3050 kg Trk 298 M/291 nm Refer manual page Use ISA dev at FL350 to get max arrival GW. Add 200 kg to get start climb GW. required is start climb GW less fix GW. is half way between fix GW and start climb GW. Divide required by SGR to find distance to start climb position. In this case 3050 kg divided by Best answer is E! Av3:FPEx2work Plane Logic

6 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 5. Q11. Refer B727 manual page 2-14 Altitude Capability. Step 1. Find Max GW that the aircraft can accelerate directly to cruise at Mach 0.82 in ISA+5 conditions. FL Mach No. ISA+5 FL kg FL kt/isa+5 (CASA ISA+6 used here) 84T FIX kg M 0.82 Earliest acceleration point kg Step 2. Find, which is half way between the current GW at MIDOG, and the acceleration point GW. In this case it is kg (say 84T). Mach kt 435 kt FF 5031 SGR required 1300 kg FL310 Step 3. Fill the in profile up to SGR, then divide the fuel required to be burnt by the SGR. The result is the distance to the acceleration point. In this case 112 nm. Answer B is closest! NOTE: 1. CASA would round to use ISA+6 for and Fuel flow. 2. CASA use ISA+5 for acceleration GW nm INTELLECTUAL PROPERTY OF AVFACTS (ROB AVERY) Q12. Refer B727 manual page 2-9 Climb tables. FL FL330 GW kg 23 min/2850 kg/148 anm Add 6 nm for the 15 kt TWC for 23 minutes. Total GNM is 154 gnm. Answer D is best! NOTE: 1. For climb calculations CASA will use the wind and ISA deviation at 2/3rds the way up to cruise level, rounded to the nearest FL. So if climbing to FL310, CASA will interpolate winds and ISA deviation to reflect those at FL CASA say they will round to nearest 5 of ISA deviation, so if ISA +12 use ISA +10 climb tables. 3. CASA say they will round the given BRW to the nearest 1000 kg. So if BRW given as kg use kg. If BRW given as kg or greater interpolate to kg for climb data. Av3:FPEx2work Plane Logic

7 FP exam 2 working/page 6. Q13. Step 1. Eliminate answers A and B as they are EASTERLY IFR levels. Step 2. Refer B727 manual page Optimum weight for FL column. FL Mach No. Optimum GW kg kg Step 3. Check the difference between the current GW given and the optimum GW for FL350, and FL310. Whichever GW is nearest the current GW is the optimum level. In this case FL310 is optimum. Answer d best! Note: 1. FL280 is not a starter as the Optimum aircraft GW for that level is greater than the aircraft max structural BRW, as indicated by the dashes in the optimum GW column. 2. If the ISA deviation is high such as ISA+15 or greater you should check that the optimum altitude is available and not made unavailable due to cruise thrust limits. This could be a catch in the CASA exam. Q14. The question asks for the minimum FOB at the Darwin ramp for NORMAL OPERATIONS. You do NOT have to assess the minimum fuel required for depressurised or 1 engine Inop operations! NOTE: CASA would use ISA+6 in the cruise and ISA+5 for the climb. The overall effect of this is negligible and would not see the wrong answer being selected. CASA use FL300 winds and temperatures (used in the working below), not FL310 interpolated numbers. FL kt/isa+5 (CASA would use ISA+6 for and fuel flow). TopC kg 71T FL kt/+6 CASA use ISA +5 LRC Mach kt 418 kt FL kt BRW kg 21 min 2750 kg 130 anm FF 4197 kg/hr SGR required 3012 kg 21 min 660 kg 107 anm 400 kg Darwin Curtin 117 gnm 300 gnm 95 gnm 512 gnm Continued on next page.

8 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 7. Q14 continued... Fuel Summary Item kg FF 6822 VR 682 FR 3300 Wx Hold YCIN 2000 Traffic hold YCIN 1000 Taxi OUT 150 Taxi IN 100 Min ramp FOB kg Answer A is best! INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES. Q15. This question is an in-flight ETP Dep asking the minimum FOB required at the fix to allow for depressurised operations.. The ETP position is given, and we will proceed out to the ETP normal ops, assume a loss of cabin pressure at the ETP, then continue ON to Darwin, or return to Alice Springs. For profile simplicity we will proceed ON to Darwin from the ETP, as this will consume the same fuel as a return to Alice Springs. You do NOT need to carry weather holding for either airport provided the airports re at least ACCEPTABLE during the period of possible use. No traffic holding need be allowed either, as we will have approach and landing priority from ATC should the aircraft suffer a depressurisation kg 74T Mach kt 414 kt FF 4516 SGR nm Spot wind FL kt/isa-5/casa spot wind given & ISA kg CPDP GW kg 70T Mach kt 335 kt FF 4801 SGR kg FL kt/isa+7 CASA use ISA+6 (used here) kg 50 anm 400 kg Alice Springs 269 nm 41 nm Darwin Continued on next page... Av3:FPEx2work Plane Logic

9 FP exam 2 working/page 8. Q 15 continued... Fuel Summary Item kg FF fix to ETP 4276 ETP to Darwin 4775 FR Dep 2250 Wx Hold Nil Traffic hold Nil Taxi IN Nil Use the current spot wind/temp OUT to the ETP. It will be more accurate than using forecast data. Use forecast wind/temp for depressurised cruise at FL130. For the purposes of the exam, the ETP is also the equi-fuel point. No final taxi when in-flight. Min fix kg Answer b best! FAQ 1. Why do we not include final taxi fuel? Answer Refer B727 manual page 1-16 para Why do we not allow a normal descent schedule. Because depressurised and 1 Eng Inop CASA say not to allow for it, which is the worst case scenario fuel-wise (no miles gained during descent). INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES.

10 FP exam 2 working/page 9. Q16. KAMBI GW kg FL kt/isa-6 FL kt/isa kt 400 kg Adelaide LW kg kg TopD kg From Sydney CAS 61T 310 kt Mach kt 412 kt FF 4591 SGR FL kt/isa+7 (CASA ISA +6) 1181 kg GW kg Mach T 487 kt 407 kt FF 4763 SGR CAS 2247 kg 310 kt Mach kt 412 kt FF 4634 SGR kg GW kg 70T Fuel in Box 7742 kg 66T FL kt/isa+10 (CASA use +9) FAGIN GW kg 59 gnm 106 nm 192 nm 333 nm KAMBI Step 1. Calculate fuel available for FLIGHT. Useable FOB kg Step 2. Find LW Adelaide. BR kg - flight fuel kg = LW kg. Step 3. Find descent data FL130. LW kg + APP Descent 520 = kg. FR Dep Final taxi Flight fuel avail 2250 kg Nil kg Step 4. Find Dep cruise data from Mt Hope to TopD, and find GW at Mt Hope (refer profile above). Step 5. Find normal ops cruise data in Mt Hope to FAGIN zone. Step 8. Find OUT and BACK by dividing the Fuel in the BOX by 4. Step 9. Find data OUT Normal Ops/FL310, and data home FL130 Dep. Step 6. Find Dep cruise data FAGIN to Mt Hope. Step 7. Find Fuel in BOX. GW at FAGIN kg kg = 7742 kg. Step 10. Divide the fuel in the box by the sum of the SGR OUT + SGR HOME to get box length, then add distances from FAGIN to Adelaide to get distance from Adelaide to the PNR Dep. In this case 690 nm from Adelaide. Answer e best! NOTE: CASA would use actual (spot) wind out to FAGIN, and FL300 fcst winds and ISA dev in the zone FAGIN to PNR.

11 FP exam 2 working/page 10. Q16 cont... FAQ: 1. My winds out to FAGIN are different = Why? Answer Did you use actual wind as CASA will? Q kt/isa-5 (CASA ISA-6 used here) LUCRE GW kg 73T 2300 UTC Fix LODGE GW kg 2.5 min 143 nm 19 nm LRC Mach kt 406 kt FF 4156 SGR kg 151 nm Esperance VOR Step 1. Calculate GW at LUCRE (TopD). You could use an approx SGR for LRC (9.2 kg/anm), corrected for the head wind to estimate this. Use the GW at LUCRE to find descent data. Descent data is 2.5 min/21 anm. When corrected for the headwind descent distance is 19 gnm. From the ERC chart the distance from LUCRE to the Esperance VOR is 162 nm. TopD is therefore 143 nm from Esperance. Answer d best! Q18. FL185 grid winds indicate the average FL130 (FL185) head wind component in the zone Adelaide/Perth is 11 kt. Depressurised (all temps) is approx 372 kt. ON to Perth is 361 kt. HOME to Adelaide is 383 kt. Refer ETP formula below. Distance from airport behind to Dep ETP = Total Dist x HOME ( ON + HOME) = 1150 nm x 383 kt (361 kt kt) = 592 nm from Adelaide Answer a best! INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES.

12 Copyright Avfacts All rights reserved worldwide. FP exam 2 working/page 11. Q19. Fix GW kg Mach kt 416 kt FF 4315 SGR T 2437 kg FL kt/isa +2 (CASA ISA +3 used here) FL kt 16 min 340 kg 95 anm GW at 1500 ft kg Destination 26 min 2600 kg 137 anm TopC GW kg LRC Mach kt 407 kt FF 4270 SGR T 1353 kg FL240 8 kt/isa +10 (CASA ISA +9 used here) kg 84 anm FL185 Nil wind 400 kg Alternate 235 nm 85 nm 137 nm 129 nm 84 nm Step 1. Find rough LW at Destination. In this case use kg (rounded). Step 2. Find descent data to 1500 ft. Min kg Dist (anm) Step 3. Find cruise distance from fix to TopD, and calculate zone Fuel Burn Off (). In this case 235 nm/2435 kg. FL310 to SL to SL FL (85 gnm) Step 4. Find GW at 1500 ft, then add 400 kg to get a pretend BRW (72000 kg in this case by CASA) on destination runway. Use this weight to get normal ops climb data to FL240. Step 5. 1 Inop climb calculation. Min kg Dist (anm) Step 6. Descent data. In this case min/615 kg/84 gnm (Nil wind here). Step 7. Calculate 1 Inop cruise distance and data. Step 8. Add up zone s and add reserves. Answer is kg. Answer d best! SL to FL SL to FL Inop penalty (P2-2a) Inop climb INTELLECTUAL PROPERTY OF ROB AVERY PLEASE SHOW PROFESSIONALISM BY NOT MAKING ILLEGAL COPIES. Av3:FPEx2work Plane Logic

13 FP exam 2 working/page 12. Q20. Actual (given) wind FL kt/isa -6 69T GW kg Usable FOB 8000 kg Fuel in Box 3772 kg 66T TopD GW kg FL kt/isa +6 67T CAS 310 kt 378 kt 413 kt FF min 520 kg 50 anm 400 kg SGR Curtin 1058 kg Darwin LW kg 185 gnm 177 gnm 92 gnm 58 gnm Step 1. Calculate fuel available for FLIGHT. Step 2. Find LW Darwin. BR 70, 000 kg - flight fuel 5750 kg = LW kg. Step 3. Find descent data FL130. LW kg + App Descent 520 = kg. Step 4. Find Dep cruise data from below fix to TopD, and find GW below fix (i.e. at end of box). Useable FOB Less FR Dep Final taxi Flight fuel avail 8000 kg 2250 kg Nil 5750 kg Step 5. Find FUEL in BOX. GW at Fix kg kg = 3772 kg. Step 6. Find OUT and BACK by dividing the Fuel in the BOX by 4. Step 7. Find SGR OUT Normal Ops/FL310, and SGR HOME FL130 Dep. INTELLECTUAL PROPERTY OF AVFACTS (ROB AVERY) Step 8. Divide the fuel in the box by the sum of the SGR OUT + SGR HOME (21.325) to get box length, then add descent distance to get distance from Darwin to the PNR Dep. The question asked for the PNR position expressed as a distance from Curtin. In this case 185 nm from Curtin. Answer a best! FAQ: 1. My winds out to PNR are different = Why? Answer Did you use actual wind as CASA do? End of Flight Planning Exam 2 working.