T-38 DASH-1 SECTION I (OVERVIEW/ENGINES)

Question 1

The T-38C aircraft, originally produced by _____, and upgraded by _____, is a ___-place, twin-_____ _____ trainer.

Answer 1

originally produced Northrop Corp, upgraded by The Boeing Co., two-place twin-turbojet supersonic trainer

Question 2

Each cockpit contains an individual _____ canopy and _____.

Answer 2

jettisonable canopy and ejection seat

Question 3

What conditions and pressurizes the air in both cockpits?

Answer 3

A cabin air conditioning and pressurization system

Question 4

The fuselage is an ____ shape, with moderately ____ wings and empennage.

Answer 4

area-rule (coke bottle), moderately swept-back

Question 5

The aircraft is equipped with an all-moveable?

Answer 5

horizontal tail

Question 6

A speed brake is located?

Answer 6

on the lower surface of the fuselage center section

Question 7

The tricycle landing gear has a _____ nosewheel

Answer 7

steerable

Question 8

All flight control surfaces are fully powered by ______?

Answer 8

two independent hydraulic systems

Question 9

The aircraft has a ___º total field-of-view Heads Up Display

Answer 9

24º

Question 10

What is the length of the T-38?

Answer 10

46 feet 4 inches

Question 11

What is the wingspan of the T-38?

Answer 11

25 feet 3 inches

Question 12

What is the height of the T-38?

Answer 12

12 feet 11 inches

Question 13

What is the tread of the T-38?

Answer 13

10 feet 9 inches

Question 14

What is the wheelbase of the T-38?

Answer 14

19 feet 5 inches

Question 15

The gross weight of the aircraft fully serviced with two aircrew is approximately?

Answer 15

12,800 pounds

Question 16

As part of the Propulsion Modernization Program (PMP), the aircraft is powered by two _____ engines.

Answer 16

General Electric J85-GE-5R/S engines

Question 17

The General Electric J85-GE-5R/S are ___-stage, ____-flow, ____ engines.

Answer 17

eight-stage
axial-flow
turbojet engines

Question 18

Sea level, standard day, static thrust for an installed engine is approximately _____ pounds at MIL power and approximately _____ pounds at full MAX power.

Answer 18

2200 pounds MIL
3300 pounds MAX

Question 19

Where does air enter the engine and and where does it to?

Answer 19

Air enters through the variable inlet guide vanes, which direct the flow of air into the compressor

Question 20

What assists in regulating compressor airflow to maintain stall-free compressor operation?

Answer 20

The automatic positioning of the inlet guide vanes and air bleed valves

Question 21

What are mounted on the same shaft?

Answer 21

Two turbine wheels and the compressor rotor stages

Question 22

The exhaust gases are discharged through?

Answer 22

a variable area exhaust nozzle

Question 23

What system varies the nozzle area to maintain EGT (Exhaust Gas Temperature) within limits at both MIL and MAX throttle positions?

Answer 23

An exhaust gas temperature (T5) sensing system

Question 24

Engine starts require _____, _____ power to energize the ignition holding relay, and ____ power for ignitor firing.

Answer 24

compressor motoring (low-pressure air supply), Direct Current (DC) power for the ignition holding relay, and Alternating Current (AC) for ignitor firing

Question 25

For ground starts, a manually operated diverter valve, mounted _____, is positioned by the ground crew to direct the flow of air to the selected engine during the start cycle.

Answer 25

mounted on the left engine

Question 26

How many engine start buttons are there and where are they located?

Answer 26

Two ENGINE START buttons are located in the left subpanel of each cockpit

Question 27

Momentarily pushing the ENGINE START button for the selected engine arms the ignition circuit (ignition timer and holding relay) for approximately ____ seconds

Answer 27

30 seconds

Question 28

What 2 things does moving the throttle to IDLE do during engine start?

Answer 28

-energizes the ignition exciter (firing main and afterburner igniters) -allows starting fuel flow to the engine

Question 29

What does any delay in moving the throttle to IDLE after pushing the ENGINE START button do?

Answer 29

Decreases the available ignition time from the 30-second cycle by an equal amount

Question 30

If you were to press the ENGINE START button again during a 30-second cycle, what would it do?

Answer 30

Momentarily pressing the ENGINE START button again during a 30-second cycle does NOT reset the ignition timer and start another cycle since the first actuation locks in the cycle (holding relay energized) until the timer expires

Question 31

Without pressing the ENGINE START button, how could you energize the main and afterburner igniters for a 30-second cycle?

Answer 31

By moving the throttle to the MAX range. However, retarding the throttle out of the MAX range at any time during the 30-second cycle stops the igniters from firing and resets the time (the throttle must be retarted from MAX to below MIL) ...more on this in the -1

Question 32

With the throttle at IDLE or above, the igniters can be energized at any time for longer than 30 seconds by?

Answer 32

selecting and holding the appropriate ENGINE START button

Question 33

AC power from a ______ can be used for engine starts. For battery starts, the _____ supplies AC power to circuits that provide the right ____ and ____ indications during start cycle

Answer 33

battery-operated static inverter; static inverter; fuel flow and oil pressure