TOLD Flashcards
Takeoff Speed
The speed at which the main gear lifts off the runway
Single-Engine Takeoff Speed (SETOS)
The speed at which the aircraft is able to climb, once clear of ground effect, at a minimum of 100 ft/min with gear down and flaps 60%
Each extra knot above SETOS does what for your climb rate?
Gives you an extra 8-50 ft/min
Takeoff Distance
The distance from brake release to main gear liftoff
Normal Acceleration Check Speed (NACS)
The speed an average T-38C should reach at a specified check point during the takeoff roll
Minimum Acceleration Check Speed
The minimum acceptable speed at the check distance at which takeoff should be continued
Refusal Speed (RS)
The maximum speed to which the aircraft is able to accelerate to with both engines in MAX and then either:
- abort with both engines operating (BEO)
- abort with an engine failure (EF)
Decision Speed (DS)
The minimum speed at which an aircraft is able to experience an engine failure and still accelerate to SETOS and takeoff (approx 700 ft from the start of rotation at SETOS) within the remaining runway
Critical Engine Failure Speed (CEFS)
AND
Critical Field Length (CFL)
The minimum speed at which an aircraft can accelerate with both engines, lose an engine, and either:
- accelerate to SETOS and takeoff
- abort and decelerate to a stop within the same distance (Critical Field Length)
Landing Distance (LD)
The distance required from main gear touchdown to slow the aircraft from landing speed to a safe taxi speed
What do we do if there is no barrier available?
Use RS-BEO instead of RS-EF
How do you calculate MACS from NACS?
Subtract 3 knots for every 1000’ of difference between CFL and RWY length, up to a maximum of 10 knots
Assumptions of normal takeoff
- MAX thrust
- Aft stick applied at rotation speed and maintaining 7.5* NH
- NW liftoff at 155
- MW liftoff at 165
Assumptions with takeoff distance
- normal Acceleration
- effects of rcr are negligible
Assumptions with refusal speed?
T-Three second reaction time O-Optimum braking below 100, cautious between 100-130 M-Maintain 7.5* if rotated, until 120 B-BEO (Both max, both idle) O-One engine (one idle, one windmilling) N-Normal Acceleration up to abort