TO/LD Definitions

Question 1

TRT

Answer 1

Takeoff Rated Thrust

Max Allowable N1

Question 2

MCT

Answer 2

Max Continuous Thrust

Max thrust without time limit

Question 3

TOGR

Answer 3

Takeoff Ground Run

Distance from start of Takeoff roll to Liftoff

Question 4

Takeoff Flare Distance

Answer 4

Distance from Liftoff to Altitude of 50’ AGL

Question 5

Reference Zero Distance

Answer 5

Takeoff Ground Run + Takeoff Flare

Question 6

Vrot

Answer 6

Rotation Speed

Speed where you Rotate

Question 7

Vmcg

Answer 7

Ground Minimum Control Speed

Minimum speed where, 1 engine failed and 1 engine at TRT, can maintain +/- 25’ from centerline with 3 wheels on the ground using primary flight controls

(88 KIAS in the T-1A)

Question 8

Vcef

Answer 8

Critical Engine Failure Speed

Speed at which you can accelerate to on all engines, lose 1 engine, and either takeoff or stop in the same distance

Question 9

Critical Field Length

Answer 9

Distance required to either Takeoff or stop after accelerating to CEFS on all engines, then lose 1 engine failed

Question 10

Vr

Answer 10

Refusal Speed

Speed to which you can accelerate to on all engines and then stop in the remaining runway

Question 11

S1

Answer 11

Go/No Go Speed

Equal to or greater than the higher of ground minimum control speed or critical engine failure speed, but less than the lowest of refusal speed, rotation speed or max braking speed (if it is, reduce takeoff weight)

Vmcg, Vcef <= S1 <= Vr, Vb, Vrot

Same as V1 - Takeoff Decision Speed

Question 12

Vmca

Answer 12

Minimum Control Speed Air

Min control speed in TO configuration, light weight and aft-limit CG, out of ground effect, with critical engine into, the other at TRT, trimmed for TO, and 5 degrees of bank and no more than 180 lbs of rudder force into the good engine with rudder boost

Vmca in the T-1A is 89 KIAS

Question 13

Takeoff Acceleration Check Speed

Answer 13

Reference Speed at a predetermined distance on takeoff roll to ensure proper acceleration

Question 14

Vb

Answer 14

Maximum Braking Speed

Question 15

Vco

Answer 15

Climb out Speed

Same as V2 - Takeoff Safety Speed

Question 16

Flare Distance

Answer 16

Ground Distance covered from 50’ AGL over the threshold to touchdown

Question 17

Landing Ground Roll Distance

Answer 17

The distance covered from touchdown to full stop using normal max braking

Question 18

Total Landing Distance

Answer 18

Flare Distance + Landing Ground Roll Distance

Question 19

Touch and Go Distance Required

Answer 19

Minimum usable runway must be equal to or greater than the applicable Touch-and-Go distance but never less than 6000’

Question 20

When using Touch and Go Tab Data, do you use the “T” numbers or “F” numbers? Why?

Answer 20

Use “T” (Throttles) numbers instead of “F” (Flaps) because you don’t want to commit to the Touch and Go upon raising flaps.