Performance Flashcards
What is the definition of the Total Takeoff Distance?
It is the distance between the begining of the takeoff roll and the place where the aircraft will reach 50 ft after takeoff.
What’s a handy rule of thumb to quickly assess the extra RWY length required when landing with some tailwind?
LDR will be increased by about 30m / 1 kt of tailwind
How does changing flaps configuration affect the takeoff roll?
Flaps 15 will give you a longer takeoff roll but will give you a better climb slope than with flaps 30.
With flaps 30, the takeoff roll will be shorter but the climb slope after takeoff will be more shallow.
What should be the initial pitch attitude for the initial climb during a normal T-O?
9° NU with flaps 15°
6° NU with flaps 30°
(Ref: OM-B 2.22.5 NADP)
What’s Vx for a climb with flaps 15° after T-O?
100 KIAS
(Ref: OM-B 2.22.5 NADP)
What is the definition of a contaminated RWY?
A RWY where at least 25% of the surface is covered with:
1. Snow
2. Frost
3. Ice
4. Slush
5. Standing water with a depth of at least 3 mm
Where can you find the tables for contaminated runway performance data?
Centrik > Documents > Flight Operations > PC-12 Manuals > PC12 - Contaminated runway data
What is a “wet” runway?
A runway covered with a water layer < 3 mm or with a “shiny” surface.
Which precaution should you take when taking-off from or landing on a “wet” RWY?
It is recommended to increase the total takeoff distance / total landing distance by 15%.
How will a takeoff from a “wet” RWY affect rotation speed?
Vr will not be affected.
What is the definition of an unpaved RWY?
A RWY made of grass or gravel.
Where can I find performance data for unpaved surfaces?
Centrik > Documents > Flight Operations > PC-12 Manuals > PC12/47E All types - Ops from prepared unpaved surfaces
What are some recomended practices to avoid damage from debris when taking off from an unpaved surface?
For taxi: Apply minimum power and keep the controls fully aft.
For takeoff: Before applying power try to make sure there are no loose stones or debris under or in the vicinity of the propeller.
When taking off from a short runway on a hot day, which precautions could you take to improve your take-off performance?
- Flaps 30
- ACS inhibit
- Inert sep closed
- De-ice / anti-ice systems OFF
What should you do if you get an amber “Engine Torque” CAS message during take-off on a cold day?
This indicates a propeller over-torque.
It tends to happen on cold days with low density altitude (outside air denser than usual).
You should then reduce power until the torque setting falls below 44.3 PSI.
