
Hi guys I need some help with this question. Im desperately trying to comprehend the calculation in this question.
Airspeed in a decent is 90 kts. U have a 6 kts. tailwind component. The aircraft is at FL40. QNH is 1025.
Decend to level at 1000 ft. QFE 5NM before reaching the distination airfield.
QFE at the airfield is 1015. the decend will be started is 25 NM. from the airfield.
What will the ROD be?
Please tell my how you woulde solve this question.