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

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

 

 

RACK

Shelves, storage units in a compartment of electrical and electronic equipment.

RADAR

RADAR, a device that measures the time between transmission and reception of radio pulses and provides information on range, azimuth and / or excess of objects along the direction of the transmitted pulses.

RADIO ALTITUDE (HEIGHT)

RADIOVYSOTA, the distance of the aircraft above the ground, a certain radio altimeter system.

RAM AIR

Oncoming VOZDSHNY FLOW, the outside air that flows cherz heat exchanger units in the air conditioning system.

RAM AIR TURBINE

AIR ram-air turbine, a device that comes with a side of the fuselage, and is driven by an external air flow for an emergency supply of hydraulic or electrical power.

RAM, sm.-RANDOM ACCESS MEMORY.

RANDOM ACCESS MEMORY

Memory with random access memory type, in which data can be written and read. Commonly used for a short period of memorization.

RATIO CHANGER

Changer gear ratio, mechanical device to change the speed of the output relative to the input speed.

RAW DATA

The raw data, the data from the sensors are not converted by the system.

READ-ONLY MEMORY

MEMORY apply only to read, a block of memory in which instructions and data are permanently stored for use by the computer. Under normal conditions persist information can not be changed.

RECEPTACLE

CONNECTOR, one half or two-part compound. Normally mounted on a support, for example, panels.

RECIRCULATED AIR

Return air, conditioned air is mixed with the air from the passenger compartment.

REDUCED THRUST

Increased thrust, thrust level less than the maximum thrust mode.

REED AND PRINCE SCREW

REED and PRINCE SCREW, a kind of cross-shaped heads with slots. (CM.Phillips Head).

RATIO

Ratio defined the relationship between the numerical value of one to the other.

REFERENCE LINE

LINE reference line used on the maps as a starting point for the application of corrections to the input values ​​on the map. One or more reference lines are used successively.

REGULATING VALVE

REGULATING VALVE valve for controlling pressure or flow.

RELAXED

Unexcited, impervious CURRENT state of the electrical component or circuit breaker that does not pass an electric current.

RELAY

SWITCH, the switching device in which the contacts are opened and closed depending on the particular current or voltage.

RESERVES

RESERVE, the fuel remaining on board after landing at the airport of destination.

RESERVOIR

Tanks, containers for liquid storage.

RESTRICTOR

Limiter throttle dimensional hole to reduce the flow or pressure of the fluid.

RELIEF VALVE

Safety valve, the valve, which prevents high blood pressure in the connection with the environment.

RESTRICTOR CHECK VALVE

LIMITING (THROTTLE) check valves, the same function as that of the limiter, but misses the flow in only one direction.

RETARD

CLEANING GAS, autothrottle mode is used to reduce the thrust of the engine to idle.

REVERSION

RETURN, change to the previously planned regime.

RHEOSTAT

Rheostats, electric apparatus for changing the resistance in an electrical circuit.

RIG PIN

ADJUSTING pin metal pin inserted in the movable component before adjusting the control cables and connectors.

RIGGING

Rib design element airfoil wing, stabilizer or control surface.

ROD END (NO. 1)

FINAL stroke position, the hydraulic control mechanism, the extreme position of the piston in the cylinder rod side.

ROD END (NO. 2)

Supports, a mechanical device, typically a bearing sleeve or similar element on the end of the stem or rod-type push-pull (with reciprocating motion).

ROLL

ROLL rotation of the aircraft about the longitudinal axis.

ROLL AXIS

Roll angle, changing the angle at which the plane is rotated by a transverse axis (wing up, wing down).

ROTARY VARIABLE DIFFERENTIAL TRANSDUCER

ROTATING VARIABLE INDUCTANCE DIFFERENTIAL

ROTATE

Transformers (inductive sensor with differential transformer), a device with input rotation and linear output.

ROTOR

Rotor rotating section of the engine (turbine compressor) or generator.

ROUTE DISCONTINUITY

ROUTE GAP provided FMC control, in which the parts of the route are not connected.

ROUTE LEGS

Section of the route, part of the route that connects two points along the route of flight.

ROLL RATE, The rate at which the airplane moves on the roll axis (wing up, wing down).

ROM, see.-READ ONLY MEMORY.

RVDT, SEE - ROTARY VARIABLE DIFFERENTIAL TRANSDUCER

RUDDER

Rudder pivotally-movable portion on the rear surface of the vertical stabilizer of the airplane to control the displacement of the vertical axis.

 

 

 

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