442 

14 CFR Ch. I (1–1–19 Edition) 

Pt. 60, App. D 

T

ABLE

D2A—F

LIGHT

T

RAINING

D

EVICE

(FTD) O

BJECTIVE

T

ESTS

 

QPS requirements 

Information 

Test 

Tolerances 

Flight conditions 

Test details 

FTD level 

Notes 

Entry No. 

Title 

5 6 7 

1. Performance 

1.a. ........................

Engine Assessment. 

1.a.1. .....................

Start Operations. 

1.a.1.a. ..................

Engine start and accel-

eration (transient).

Light Off Time—

±

10% or 

±

1 sec. 

Torque—

±

5% Rotor Speed— 

±

3% Fuel Flow—

±

10% Gas 

Generator Speed—

±

5% Power 

Turbine Speed—

±

5% Gas Tur-

bine Temp—

±

30 

°

C.

Ground with the 

Rotor Brake Used 
and Not Used.

Record each engine start from 

the initiation of the start se-
quence to steady state idle and 
from steady state idle to oper-
ating RPM.

X X 

1.a.1.b. ..................

Steady State Idle and 

Operating RPM condi-
tions.

Torque—

±

3% Rotor Speed— 

±

1.5% Fuel Flow—

±

5% Gas 

Generator Speed—

±

2% Power 

Turbine Speed—

±

2% Turbine 

Gas Temp—

±

20 

°

C.

Ground .....................

Record both steady state idle and 

operating RPM conditions. May 
be a series of snapshot tests.

X X X 

1.a.2. .....................

Power Turbine Speed 

Trim.

±

10% of total change of power 

turbine speed; or 

±

0.5% 

change of rotor speed.

Ground .....................

Record engine response to trim 

system actuation in both direc-
tions.

X X 

1.a.3. .....................

Engine and Rotor Speed 

Governing.

Torque—

±

5% Rotor Speed— 

±

1.5%.

Climb Descent ..........

Record results using a step input 

to the collective. May be con-
ducted concurrently with climb 
and descent performance tests.

X X 

1.b. ........................

Reserved. 

1.c. .........................

Takeoff. 

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