Angle Of Climb + Rate Of Climb - Ch 6 + 7 Flashcards Preview

Performance > Angle Of Climb + Rate Of Climb - Ch 6 + 7 > Flashcards

Flashcards in Angle Of Climb + Rate Of Climb - Ch 6 + 7 Deck (16):
1

Vx

The best (max) AoC for obstacle clearance

Determined by excess thrust

For a jet Vx=Vmd 4 degrees AOA
Prop: Vx

2

Vy

Best RoC for getting to altitude quickly - most fuel efficient

All about excess power

3

5% Gradient

3 degrees

4

Gradient % =

T - D / W x 100

5

AoC

Is air mass related

6

Flight Path

Is ground related

7

Accelerating and Turning

Less excess thrust available there fore less AoC

8

Rate of Climb

Power Available - Power required / Weight

Excess Power / Weight

9

Absolute Ceiling

The highest you can possibly get to

Performance limited

Vx = Vy

10

Service Ceiling

Where RoC is reduced to with altitude

Prop: 100fpm
Jet: 500fpm

11

Certified Ceiling

The maximum cleared operating altitude - pressurisation issues usually

12

Aerodynamic Ceiling

Coffin corner

Based on mass and CG considerations

13

Vy

Is where the difference between power available and power required is maximal - speed for max RoC

Jet: Faster than Vmd Prop: Vy ~ Vmd

14

Wind

Has no effect

15

Accelerating / Turning

Will decrease the AoC and RoC

16

Summary Table

AoC. Vx. RoC. Vy
I Weight D. I. D. I
I Flap Angle D. D. D. D
I Alt + Temp. D. See Table. D. See table
Eng Failure. D. See table D. D.