Takeoff Flight Path Flashcards
what are the climb requirements for the first segment of the takeoff
Min. climb gradient: - 0% twin, 0.5% quad Starts at: V2 at 35ft Slats/flap config: Takeoff Engine rating: TOGA/FLEX Speed reference: V2 LDG gear: retracted Weight reference: weight at start of retraction Ground effect: Nil
what are the climb requirements for the second segment of the takeoff
Min. climb gradient: - 2.4% twin, 3.0% quad Starts at: gear fully up Slats/flap config: Takeoff Engine rating: TOGA/FLEX Speed reference: V2 LDG gear: retracted Weight reference: weight at point when gear fully up Ground effect: Nil
what are the climb requirements for the third segment of the takeoff
Min. climb gradient: - nil% twin, nil% quad
Starts at: acceleration height reached (400ft)
Slats/flap config: slat/flap retraction
Engine rating: TOGA/FLEX
Speed reference: acceleration from V2 to green dot
LDG gear: retracted
Weight reference: weight at start of acceleration
Ground effect: Nil
what are the climb requirements for the fourth segment of the takeoff
Min. climb gradient: - 1.2% twin, 1.7% quad Starts at: en-route config achieved Slats/flap config: clean Engine rating: MCT Speed reference: green dot LDG gear: retracted Weight reference: weight at end of acceleration Ground effect: Nil
What is minimum acceleration height and it’s requirements
- no less than V2 speed until 400ft above runway
- above 400ft, a climb gradient no less than:
- 1.2% 2 engine
- 1.7% 4 engine
How is the minimum height to start a turn determined
half the wingspan above the runway TORA
what are the maximum bank angles in the takeoff
less than 200ft: 15 degrees (standard and specific approval)
200-400ft: 15 degrees standard and 20 degrees specific approval
above 400ft: 25 degrees standard and 30 degrees specific approval
what is the gross flight path
the takeoff flight path actually flown by the aircraft “aka the mean flight path”
what is the net flight path
the gross takeoff flightpath minus a reduction:
- 0.8% for 2 engine
- 1.0% for 4 engine
what is the obstacle clearance condition for the net flight path
it must be not be below 35ft above any obstacles
what is the minimum climb gradient on the takeoff flightpath
2.4% or 35ft over obstacle
what obstacle clearance is required if the aircraft is turning above and below 15 degrees AoB
if more than 15 degrees AoB on takeoff flightpath:
- 50ft clearance
if less than 15 degrees AoB on takeoff flightpath:
- 35ft clearance
with respect to TOD’s, climb gradients and MTOW, what happens when pressure altitude increases?
- TOD’s increase
- Climb gradients decrease
- MTOW decreases
with respect to TOD’s, climb gradients and MTOW, what happens when OAT increases?
- TOD’s increase
- Climb gradients decrease
- MTOW decreases
how does an upward slope affect TOD’s and ASD
- TOD’s increase
- ASD decreases
