Hey Guys
I am pulling teeth trying this ..PLEASE HELP
A flight is conducted from A to Y via X . I n the event of a return flight due to weather consideration the A/c will be diverted to Z.
Flight Details FOB 3000 LBS
Dist Trk W/V Normal TAS Reduced TAS Nor F/C Red F/C
A to X 465 NM 040 150/30 275 240 550LB/HR 390LB/HR
X to Y 775 NM 140 300/35 275 240
Y to Z 350 NM 250 290/15 275 240
Calculate the time and distance to PNR in the event of one engine failure at PNR.
Kanuck, I think you copied your question wrong it should have been
A to X 465 NM 040 150/30 275 240 550LB/HR 390LB/HR
X to Y 775 NM 140 300/35 275 240
X to Z 350 NM 250 290/15 275 240
Solution:
A-X Normal TAS: Dist 465, GSO 284, FC 550 therefore F Used= 900.52 lbs
X-Z EF TAS: Dist 350, GSO 228, FC 390 therefore F Used= 598.68 lbs
Total Fuel used= 1499
Available fuel= 3000-1499= 1501 lbs ....................... (1)
X-Y Normal TAS: Dist 775 GSO 308, FC 550 therefore F Used= 1384 lbs
Y-X EF TAS: Dist 775 GSH 207, FC 390 therefore F Used= 1460 lbs
Total fuel used= 2844 lbs ................................ (2)
From (2)
when fuel used is 2844 lbs DPNR is 775 nm
if fuel used was 1 lbs DPNR will be 775/2844 nm
Therefore from (1)
when fuel used is 1501 lbs, DPNR = 775/2844 * 1501= 409 nm
Hence the DPNR from A = Dist AX+ Dist X-DPNR= 465+409 = 874 nms
Now if you really want to pass your Indian ATPL exam please get some coaching from one of the instructors. These are the basic questions if you are struggling with these you will have hell of a time with DMP, Lat Nut, Flight Planning, Moon rise and other Navigation questions.