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Manual Boeing - a glossary of terms. The letter S.
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Manual Boeing - a glossary of terms. The letter S.

Manual Boeing - a glossary of terms. The letter S.

 

 

SAFETY RELIEF VALVE

SAFETY VALVE Safety valve in the pressurization system to reduce the pressure to a safe level cabin operating pressure.

SCAVENGE

Evacuated to remove the oil from the motor bearings or remove the water / fuel pump from the tank.

SCHEDULE GENERATOR

GENERATOR MODE electronic components in the system for controlling operation of pressurization relief valve.

SCHRAEDER VALVE

VALVE "shredder", the valve to pressurize the wheel, amortization racks and the battery and the boost pressure in the water tank on the outside.

SCR, SEE - SILICON CONTROLLED RECTIFIER SCR, sm.-SILICON CONTROLLED RECTIFIER.

SCRATCH PAD

"ROUGHING string" zone on the control box display of FMCS, used to specify the characteristics of the involved using the alphanumeric keys.

SCSI, SEE - SMALL COMPUTER SYSTEM INTERFACE SCSI, sm.-SMALL COMPUTER INTERFACE.

SCUPPER

COLLAR (scuppers), small container around the filler neck of the liquid tank to collect sparkling and spillage when filling the tank. The collar is typically connected to the drainage system of the seawater.

SEA LEVEL

Sea level, standard level, taken as zero, which is measured by the height.

SEA LEVEL STATIC THRUST

Static thrust at sea level, the power prooizvodimaya permanently fixed jet in the external conditions corresponding to the conditions at sea level.

SELCAL, SEE - SELECTIVE CALLING

SELECTIVE CALLING

Selective call system which automatically alerts the crew on a call from a ground station observations.

SELECTOR VALVE

Switching valves, the valve in the hydraulic circuit for connecting the hydraulic supply line to one side of the control mechanism and connecting the other side of the mechanism with the return line.

SELF SEALING COUPLING

GERMORAZEM, the connection between the two liquid pipes to prevent the loss of fluid from them when disconnecting the pipes.

SERVO ARMED

Trained to work Servo Mechanism, the hydraulic pressure to the servo-mechanism served to allow the servo internally synchronized to the correct position, but the servo-mechanical output signal is not supplied.

SEMI-MONOCOQUE

Semi-monocoque type structure in which the lining, stringer and frame carry the full load.

SENSOR

SENSOR, an electrical device for detecting various conditions and the transmission signal to the indicators and indicator lights.

SENSOR ACTUATOR

MECHANISM sensor control, sensor control device.

SERVO

Servo, automatic control system, which checks its output signal with respect to its input signal, in order to achieve the desired control.

SET SCREW

Setscrews small screw (usually without head) used for fixing a pulley wheel or handle to the shaft and prevents rotation.

SG, sm.-SYMBOL SENERATOR.

SHEAR

Cutoff voltage occurring in the material or in the assembly, which is directed along the sliding plane surface parallelno connected to each other.

SHIMMY

Shimmy, rapid oscillatory movement (left to right) wheel chassis.

SHIMMY DAMPER

DAMPER shims, hydraulic device for damping shimmy in the landing gear.

SERVO ENGAGED

INCLUDED Servo Mechanism, a mechanical servo output signal is fed and the servo can move the control surface.

SHOCK STRUT

Short circuit, failure in the electrical circuit that occurs when power is supplied directly to the ground, instead of going to the electrical components.

SHORT RANGE ALTITUDE

HEIGHT LOW range, cruising altitude chosen for minimum fuel consumption during the flight short range.

SHROUD

Enclosures, metal coating, closing APU on the aircraft. The outer tube to protect the fuel hose.

SHUTTLE VALVE

The depreciated rack component on the landing gear to absorb the shock load by overflow of oil from one chamber to another through the metering valve.

SID, sm.-STANDARD INSTRUMENT DEPARTURE.

SIDE COWL

SIDE HOOD, removable cover around the side surfaces of the engine for access to engine components.

SIGHT GLASS

Peephole, glass window for observing the amount of fluid in the tank car.

SIGNAL

SIGNAL, electrical quantity such as current, voltage, which can be used for the transmission of information to communicate, or manipulated computing.

SILICON CONTROLLED RECTIFIER

KREMNIVY controlled rectifiers, electronic device, passes current in one direction, then the device has gained momentum from the logic circuit.

SINGLE SHOT MULTIVIBRATOR

Multivibrator SINGLE INPUT, the electrical circuit that produces a pulse when it comes from the operation of the input signal; monostable multivibrator.

SLOPE

Bias, the slope of the runway surface with respect to the absolute level.

SMALL COMPUTER SYSTEM INTERFACE

SMALL COMPUTER SYSTEM INTERFACE, input and output bus that provides a standard interface between a computer and peripheral devices.

SMOKE DETECTOR

Smoke detectors, the device by which the crew can be warned of the presence of smoke or fire in specific areas of the aircraft.

SNUBBER

Absorbers OF INERTIA, part of the hydraulic control mechanism, which reduces the speed of the piston by means of limiting the flow.

SLUSH

Slush, runway conditions by mixing water, snow or ice.

SLAT

Slat, movable portion at the front edge of the wing to increase lift at low speeds of the aircraft.

SOLENOID

Solenoids, apektoro-mechanical device to control other devices.

SOLENOID CONTROLLED VALVE

CONTROLLED solenoid valve (SOLENOID VALVE), valve controlled by a solenoid to open and close it.

SOLID STATE SWITCH

Semiconductor switches (mainly various types of transistors) circuitry, which provides inclusion in the electric line.

SOFTWARE

Software stored instructions to operate the computer.

SOUND SUPPRESSION LINER

Sound-absorbing liner element in the front bonnet and around the engine to absorb engine noise.

SPAR

Spars, the main beam in the construction of a large span of the wing, stabilizer or control surface.

SPEED INTERVENTION

"Invasion" in the speed, the pilot controls the speed during VNAV.

SPIN BRAKE

Slows the rotation, the device in front of the chassis recess to stop wheel rotation after the landing gear.

SPINNER

Cowling aerodynamic fairing attached to the fan of a turbofan engine.

SPLICE (NO. 1)

Lap joints, the connection of two sections of the aircraft skin.

SPLICE (NO. 2)

Splicing electrical connection of two conductors

SPOILER

SPOILER pivotally-movable panel on top of the wing. Flight spoilers help ailerons for roll control of the aircraft (wing up, wing down) and used for aerodynamic braking in the air and on the ground. Ground spoilers only aerodynamic drag on the ground.

SPRING LOADED

Spring-loaded, a condition in which one part of the device is held in an appropriate position relative to the other part by means of a spring. This allows you to make a move, but returns the parts in their original position.

SQUAT

SQUAT, the aircraft on the ground.

SQUIB

PIROPOTRON electrically controlled pyrotechnic device to rupture disc cylinder extinguisher for extinguishing fluid leakage. Also used to release the emergency ladder.

STABILIZER TRIM

Trim stabilizer, horizontal movement of the tail to change the spatial position of the aircraft relative to the transverse axis.

STALL

Stall, flight conditions, during which violated the condition of lift due to the low speed of the aircraft or the spatial position.

SQUAT SENSOR, sm.-AIR / GROUND SENSOR.

SQUAT SWITCH, sm.-AIR / GROUND SENSOR.

STABILIZER, sm.-HORISONTAL AND VERTICAL STABILIZER.

STAND PIPE

OVERFLOW PIPE, rising from the bottom of the reservoir tube that allows fluid to exit through the top and follow the system. It prevents the lift from the bottom of the slurry tank. It can also control the liquid level in the tank.

STANDARD INSTRUMENT DEPARTURE

STANDARD instrument departure procedures published procedure for the departure from the airport IFR (instrument flight rules).

STANDARD TERMINAL ARRIVAL ROUTE

STANDARDISED instrument landing published procedure for arriving at the airport IFR (instrument flight rules).

START VALVE

VALVE TRIGGER valve in the engine starting system for supplying air from a pneumatic line to the starter motor.

STATIC AIR TEMPERATURE

Static air temperature, outdoor or ambient air temperature.

STATIC PORT

STATIC hole small hole in the fuselage for the detection of static pressure for aircraft instruments.

STATIC PRESSURE

Static pressure, air pressure or fluid at rest, measured in pounds per square inch.

STAR, sm.-SNANDART TERMINAL ARRIVAL ROUTE.

STATION, A vertical reference plane along the fuselage for measurements along the fuselage.

STEERING ACTUATOR

EXECUTIVE management mechanism, the hydraulic control mechanism to strut landing gear for taxiing (movement) of the front wheel left or right.

STICK SHAKER

Vibrator steering column device operating on the electric motor on the steering column, which is shaking the column before it appears stall condition.

STATOR

A stator fixed compressor section between the degrees of the compressor in a jet engine.

STEERING TILLER

Control knob manually operated shift in the control room for taxiing (movement) of the front wheel left or right.

STICK NUDGER

FOLLOWER steering column device to push the steering column forward at the time the stall condition.

STRINGER

Stringer, element of design in the fuselage or wing skin to transmit the load to the frame or edge of the wing.

STROBE LIGHT

Flashing light, high intensity flashing light on the wingtips and tail.

STRUCTURAL MEMBER

Structural element of the aircraft structure, which is designed and constructed to carry a load and take the pressure.

STRUT

STAND, struts, mechanical component in the landing gear to support the chassis in the extended position.

STRAIN

Strain, sprains, small structural deformation of the material under the action of pressure and engagement.

SUMMATION UNIT

Summing unit, an electronic component for adding fuel to all tanks, sends a signal to display the total fuel quantity.

SUMP

Sumps, the sump, the low-lying point in the oil system or fuel tank.

SUPPLEMENTAL DATA

Additional data, the additional data stored in the memory FMC, supplementing the loaded navigation database.

SUPPLEMENTARY MODES

Additional modes, additional modes of digital flight control systems, which are available and used when deviating from the normal mode.

SURGE

Surging abrupt pressure change of air flow through the compressor, causing inability airflow contractor.

SWAGE

Stamping, crimping, squeeze together two or more pieces in the form of one continuous block. For example, a piece of lead or steel wire that forms the stopper and the cam. Also used for crimping pipes.

SWITCH

SWITCH, a device that changes the state of the circuit-on-off or zamknutorazomknuto.

SWIVEL, A device for rotation of components.

A hinge device for rotating the component.

SWIVEL COUPLING

Joint coupled to the hydraulic pipes for admission progress component.

SYMBOL

Symbol, graphic sign on the components of the aircraft in a very simplified form. Used throughout the drawings to refer to a component entirely.

 

 

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