Dist = 410

End = 3.6 hrs

TR = 055(out) Home(235)

W/V = 180/35

Tas = 120kt

?Dist PSR?

In my calculation for GS(o) = 136kt & GS(h) = 97

Time PSR = E*H/O+H = 3.6*97 / 136+97 = 349.2/233 = 1.498

Dist PSR = Time* GS(o) = 1.498*136 = 203.728 = 203nm

GS(out) > Dot under 120 , set in W/V, set 055 under HDG, this gives drift 12 left, now correct for this drift, this gives 14 left, apply for this drift , which gives GS (o) 136kt

GS(home) > Now use 235 as your TRACK home, drift becomes 15 right, apply this drift , this gives 12 right, correct to 12, this gives GS (h) 97kt

 

The distance given is the Distance from Departure to Destination..

The distance asked is the Distance of the PSR from departure point...

First you have to calculate the:

Time to PSR = E*H/O+H = ??hr

Now you can calculate:

Dist PSR from dep point = Time*GS(out) = ??nm

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So if they ask for: Dist to PSR ?

1. Calculate Time to PSR first (using the Endurance) ,this gives: Time

2. Calculate the Dist PSR (using the Time) ,this gives: Dist

If they ask for: Time to PET (CP) ?

1. Calculate the Dist to PET first ,this gives: Dist

2. Calculate Time to PET = Dist/GS(out)