SECTION
1
DESCRIPTION
TABLE OF CONTENTS
Title
The Airplane
Engine
Fuel Supply System
Electrical Power Supply Systems
Hydraulic Power Supply Systems
Flight Control System
Wing Flap System
Boundary Layer Control System
Speed Brake System
Landing Gear System .
Nosewheel Steering System
Wheel Brake System
Drag Chute System
Instruments
Warning Light System
Survival Pack
Canopy
Ejection Seat
Emergency Oxygen Supply Systems
Air-Conditioning and Pressurization System
Defogger and Rain-Remover Systems
Anti-Icing Systems
Communications and Navigation Equipment
Air Data Computer
C-2G Directional Gyro System
Inertial Navigator
PHI Navigation System
Radar Altimeter (FB Airplanes Only)
Automatic Pilot
Lighting Equipment
Oxygen System
Engine Bleed Air Anti-G Suit System
THE
AIRPLANE
The single-place F 104 S airplane is a high- performance, all-weather, day
and night interceptor, fighter-bomberr powered by an axial--flow, turbojet
engine with afterburner. The airplane, built by AERITALIA - STABILIMENTI DI
TORINO under Lockheed Aircraft Corporation licency, is designed for high subsonic
cruise and high supersonic combat speeds. Notable features of the airplane
include extremely thin flight surfaces, short straight wings with negative
dihedral. Irreversible hydraulically-powercd flight controls, a controllable
horizontal stabilizer mounted at the top of the critical stahilizer, engine
air inlet duct anti-icing. an antiskid brake system, an automatic pitch control
system, and a maneuvering automatic pilot. The wings have leading and trailing
edge flaps, and a boundary laycr control system which is used in conjunction
with the trailing edge flaps to reduce landing speeds. A Martin Bakcr upward
ejection system is used for emergency escape. A drag chute is installed to
reduce the landing roll and an arrest-ing hook is availabie for bringing the
aircraft to an emergency stop. Intenal fuel cells and extenal fuel tanks may
be serviced through a single-point pres-sure refueling system.
DIMENSIONS
Overall dimensions of the airplane are as follow:
Wing span (without tip tanks) 22 feet
Lenght (with boom) 58¼ feet
Height ( to top of the vertical stabilizer) 13½ feet
Tread 8¾ feet
Refer to Figure 2-5 for minimum tuening radius and ground clereances.
GROSS
WEIGHT
Omissis.
ENGINE
The airplane powerplant is a General Electric J79-GE-19 turbojet engine.
Uninstalled engine sea level thrust rating at Military Thrust ( maximum thrust
non-afterburning) is approximately 11870 pounds. Maximum Thrust (full afterburning)
under the same conditions is approximately 17500 pounds. During engine operation,
the 17 stage axial flow compressor is driven by a 3 stage turbine. The turbine
is impelled by combustion gases directed against the turbine buckets.
Combustion gases after passing through the turbine section, flow around the
afterbumer spray bars where additional fuel can be introduced to obtain a
substantial gain in thrust. The inlet guide vanes and the first six stages
of compressor stator vanes are variable to reduce the possibility of compressor
stall. The variable stator system automatically positions the vanes to direct
the air intake flow in relation to engine speed and compressor inlet temperature
(CIT). The aft end of the engine is comprised of a guided expansion vanable
area nozzle which increases exhaust gas velocity by decreasing the exhaust
outlet area. Automatic nozzle area control is provided to obtain the desired
thrust within the safe operating limits of the engine. Mechanical energy to
power accessory components is obtained through engine-mounted gearboxes driven
by a shaft splined to the compressor rotor.
ENGINE CONTROL
SYSTEM
The engine employs the concept of constant corrected speed control of the
rotor, rather than a constant physical speed control, to provide maximum compressor
operation efficiency. Engine speed is controlled so that the corrected speed,
in general, remains at 100% rpm. Physical engine speed, in other words, is
increased as the ambient temperature increases. The maximurn engine speed
of 105.5% rpm occurs at a CIT of 65°C.
At standard day conditions of 15°C, engine speed will be 100%. The engine
also incorporates flight idle reset as a function of CIT to prevent duct instability
during throttle "chops" at high airplane speeds. Available thrust
is a smoothly increasing function of Mach number.
Exhaust gas temperature is controlled as a function of physical engine speed
when operating at Military or afterburner power settings.
In summary, during Military and afterburner operation, the rpm may not be
100% but will vary with CIT. Likewise, exhaust gas temperature will vary with
rpm. See Figure 1-2 for rpm and exhaust gas temperature scheduling.
Tachometer. The tachometer (Figures FQ-4 thru FO-7), mounted on the right
side of the main instrument panel, indicates engine speed in a percentage
of the maximum rated speed of 7460 rpm. The instrument is powered by a tachometer
generator, which generates a frequency proportional to engine speed.
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