Flying RoT

Question 1

Descent Planning
35,000ft to 1,500ft
300 to 150kts
15kt tailwind

Answer 1

3 degrees = 1 nm per 1000ft
+ 1nm per 10kts deceleration
+ 1nm per 10kts tailwind
130nm
33.5*3 + 15nm + 1.5nm = 117nm eg. 120nm

Question 2

Swept wing aerodynamics
Pros?
Cons?
Handling

Answer 2

Low drag = High speed flight
Lower CL and wider CL curve requiring higher AoA for max lift.

Low speed performance poor - Vmd typically above Vapp so in the high drag, speed unstable region. Induced drag increases rapidly as speed reduces due to required high AoA. Care with speed and active power control or high sink rate can develop.

Tip stall more common = poor aileron perf, pitch up tendency (pro stall), pitch up again due to downwash over tailplane.

Question 3

1 in 60 rule
Descent gradient

Answer 3

1 deg = 100ft per 1nm (6000ft per 60nm)

1 deg at 60 nm is 1nm

Question 4

Descent planning
A) Fastest
B) Most fuel efficient
C) figures

Answer 4

A) maintain cruise altitude, idle, faster descent speed = faster ROD (much more induced drag)

B) descend idle at max L/D ratio (1.5 deg)

C) idle, clean, 230-250KIAS 2.5-3 deg

Question 5

TAS (nm/min) from Mach

Answer 5

Mach x 10

Question 6

A) Turn radius (90 degrees at 30 AoB)
B) Turn radius SRT
C) AOB SRT

Answer 6

A) (nm/min - 2) or (nm/min)^2 / 10
Best estimate = (Mach^2) * 10

B) 0.5% TAS (per hr)

C) TAS(per hr) /10 + 7

Question 7

Lead turn degrees from arc onto radial

Answer 7

Degrees LT = turn rad * 60/DME
Usually ~15nm arc, 1-1.3nm TR
Lead Turn 4-5 degrees

Question 8

Bank to maintain DME arc

Answer 8

Turn radius x 30/DME = Lead/2

Question 9

Pitch vs gradient

Answer 9

Pitch degrees = grad (ft/nm) / 100

Question 10

TAS from IAS

Answer 10

TAS = IAS + FL/2
TAS = IAS + (2% IAS per 1000ft)

Question 11

Celsius to farenheit

Answer 11

F = C9/5 + 32
C = (F-32)5/9
0C = 32F
-40C = -40F