Category:IALA Dictionary 1970-89 Edition
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| International Dictionary of Marine Aids to Navigation |
This Category contains all pages with term definitions from the original 1970 - 1989 IALA Dictionary Editions.
Pages in category "IALA Dictionary 1970-89 Edition"
The following 500 pages are in this category, out of 2,614 total.
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- Open position (of a switch)
- Open-circuit voltage
- Open-circuit voltage (Voc)
- Open-link chain
- Open-loop control
- Open-mesh flooring
- Operable
- Operating
- Operating air
- Operating conditions
- Optic
- Optic Pedestal
- Optic rotation mechanism
- Optical Axis
- Optical coupler
- Optical Density
- Optical Focus
- Optical Glass
- Optical Panel
- Optimum load impedance
- Order (of an optic)
- Organ of Vision
- Oscillating water column
- Outfall Mark (or Buoy)
- Output (process)
- Output channel
- Output data
- Output device
- Output power
- Output state
- Over-interrogation
- Overall efficiency of an R.F. stage
- Overhead (power) line
- Overload
- Overload (2)
- Overload protection
- Overload relay
- Overturning moment
- Oxidation
- Oxygen
P
- Pack ice
- Padstone
- Paint
- Paint (2)
- Painting (process)
- Parabolic antenna
- Parabolic Reflector
- Paraffin (soil)
- Paraffin Vapour Lamp
- Parallel connection (of sources)
- Parallel redundancy
- Parallel-plate lens
- Parallelling
- Parapet
- Parasitic radiation
- Parity bit
- Parity check
- Parity code
- Pass
- Pattern
- Pattern recognition
- Peak envelope power
- Peak envelope power (2)
- Peak load
- Peak pulse power (carrier frequency)
- Peak wind speed
- Peat
- Pentagonal cluster
- Percentage content (of solids)
- Percentage of Visibility
- Perception
- Performance monitor
- Period
- Period (of a rhythmic light)
- Periodic duty
- Periodic quantity
- Permanent echo
- Permanent Light
- Permanent load
- Permanent-magnet
- Petrol (G.B.)
- Petrol engine
- Phantom target
- Phase
- Phase converter
- Phase deviation
- Phase meter
- Phase modulation (PM)
- Phase voltage (of a three-phase alternator)
- Phosphorescence
- Photo-electric switch
- Photoelectric Photometer
- Photoluminescence
- Photometer
- Photometry
- Photopic Vision
- Physical Photometer
- Pick-up factor
- Pick-up ratio
- Pickling
- Pier
- Pier (2)
- Pierhead
- Pigment
- Pile
- Pile cap
- Pile driving
- Pile helmet
- Piling
- Pilot Light
- Pilotage
- Piloting
- Pin
- Pin Cap (G.B.)
- Pipe
- Piston
- Piston ring
- Pitch
- Pitch (of a chain)
- Plan position indicator
- Plane of polarization
- Plane polarized wave
- Plane wave
- Plank
- Plastic(s)
- Plasticity
- Plasticity index
- Plate
- Plate Glass
- Platform
- Play
- Plinth
- Plug (masonry)
- Plug (top)
- Plywood
- Pneumatic relay
- Point Brilliance
- Point source
- Point visibility meter
- Point Vision
- Pointing
- Poisson's ratio
- Polarisation (of an electrochemical cell)
- Polarization
- Polarization error
- Polarized relay
- Pole Beacon
- Polychromatic radiation
- Polymer
- Pontoon
- Population
- Port Hand Mark (or Buoy)
- Portal frame
- Position control system
- Position determination
- Position fixing
- Position line
- Position line (2)
- Position of rest
- Positive feedback
- Post
- Potential annual energy output (of a wind-power generator)
- Potentiometer
- Power
- Power curve (of a wind-power generator)
- Power gain - antenna
- Power line
- Power pack
- Power system
- Pre-emphasis
- Pre-Focus Cap
- Pre-Focus Lamp
- Pre-ignition
- Precast concrete
- Predrilled
- Prefabricated
- Pressure
- Pressure reducing valve
- Pressure stat
- Pressure-reducing valve
- Pressure-relief valve
- Prestressing
- Preventive maintenance
- Pricking Out
- Primary cell
- Primary Light Source
- Primary radar
- Prime mover
- Primer
- Principal axis
- Prism
- Prismatic Lens
- Prismatic Section
- Profile (of a fixed lens)
- Profile (of a lens, other than a fixed lens)
- Progressive wave
- Projector
- Projector Lamp (G.B.)
- Propagation error
- Propane
- Proportional action
- Proportional plus derivative action
- Proportional plus integral action
- Proportional plus integral plus derivative action
- Protected enclosure (or machine)
- Protected machine
- Pulse
- Pulse amplitude modulation (PAM)
- Pulse code modulation (PCM)
- Pulse droop
- Pulse duration
- Pulse duration coding
- Pulse duration modulation (PDM)
- Pulse duty factor
- Pulse forming line
- Pulse frequency modulation
- Pulse modulation (by pulses)
- Pulse modulation (of pulses)
- Pulse position modulation (PPM)
- Pulse power
- Pulse repetition frequency
- Pulse repetition frequency (PRF)
- Pulse repetition rate
- Pulse repetition rate (PRR)
- Pulse rise time
- Pulse spacing
- Pulse spike
- Pulse tilt
- Pulse time modulation (PTM)
- Pulse train
- Pulse-modulated radar
- Punching
- Pure sound
- Purkinje Phenomenon
- Purlin
- Push-button (switch)
Q
R
- R.F. head
- R.F. stage
- Rack
- Racon
- Radar
- Radar beacon
- Radar echo
- Radar equation
- Radar head
- Radar performance figure
- Radar reflector
- Radar reflector response pattern
- Radar relay system
- Radar repeater
- Radar target
- Radial Screens
- Radiance
- Radiant energy
- Radiant exitance
- Radiant exposure
- Radiant intensity
- Radiant power
- Radiation
- Radiation efficiency
- Radiation field
- Radiation intensity
- Radiation monitor
- Radiation pattern
- Radio
- Radio beacon - Continuous carrier
- Radio beacon - Dual carrier
- Radio beacon - Non-Directional
- Radio beacon characteristic
- Radio beacon range
- Radio beacon station
- Radio horizon
- Radio leading line
- Radio Lens
- Radio receiver
- Radio telemetry
- Radio transmitter
- Radio waves
- Radio-isotope generator
- Radiodetermination
- Radiogoniometer
- Radiolocation
- Radionavigation
- Rafter
- Rain clutter
- Rake (of a pile)
- Raking pile
- Ramark
- Ramp
- Rana system
- Random access
- Random access memory
- Random error
- Random triggering
- Range marker
- Range rings
- Ranging Mode (R-Mode)
- Ratan
- Rated Life (of a lamp)
- Rated power output
- Rated wind speed (of a wind-power generator)
- Rating
- Rating (of a machine or apparatus)
- Raydist
- Raydist Lane resolution
- Raydist Relay station
- Re-entrant horn
- Re-radiation
- Re-radiation error
- Reaction
- Reactor-start motor
- Ready-mixed concrete
- Real time
- Real time processing
- Reaming
- Rear Light
- Rebate
- Receiver radiation
- Reciprocating (air) compressor
- Reciprocating engine
- Recombination
- Record
- Recorder
- Recording
- Recording equipment
- Rectifier
- Red lead primer
- Reduced carrier
- Redundancy
- Reed
- Reed box
- Reed fog signal
- Reed holder
- Reef
- Reference frequency
- Reference input signal
- Reflectance
- Reflection
- Reflector
- Reflector (2)
- Reflector Lamp
- Refraction
- Refraction (2)
- Refractive Index
- Refractive index
- Refractive modulus
- Refractor
- Refusal
- Register
- Register (2)
- Regular Transmission
- Regulator
- Reinforced concrete
- Reinforcement
- Reinforcing bar
- Reinforcing Mirror
- Relative display
- Relative gain of an antenna
- Relay
- Reliability
- Relief
- Relief davit
- Remote control
- Remotely Controlled Light
- Rendering
- Repeater
- Reperforator
- Reply hits
- Reply of a transponder
- Reserve buoyancy
- Reserve buoyancy/es
- Reset
- Residual error
- Residual octantal error
- Resin
- Resistance starting (of a motor)
- Resistance-start motor
- Resolution
- Resolve
- Resolving time
- Resonance
- Resonance (2)
- Resonant reed (2)
- Resonant reed filter
- Response Time
- Response time
- Responsor
- Retarder
- Retina
- Retro-Reflecting Material
- Retro-Reflection
- Retro-Reflector
- Reversing switch
- Revetment
- Revolving Screen
- Rhythmic
- Rhythmic Light
- Rib
- Riding chain
- Rigging
- Ring
- Ring around
- Ring beam
- Ring bolt
- Ring main
- Ring time
- Ripple-through counter
- Riprap
- Rise time
- Rise time (of a pulse)
- Rising main
- River tender (USA)
- Rivet
- Roads
- Rock
- Rods
- Roll damping device
- Rolled section
- Rollers
- Roof batten
- Rotary (air) compressor
- Rotary converter
- Rotary electric machine
- Rotary stepping relay
- Rotary switch
- Rotating loop direction finder
- Rotating Optic
- Rotation monitor
- Rotor (of a wind-power generator)
- Rotor (of an electric machine)
- Rotor of a siren
- Rough Service Lamp
- Rubble (stone)
- Rubble mound breakwater
- Running ground
S
- Sacrificial anode
- Safety
- Safety hand-hold
- Safety hand-hold/es
- Safety precautions
- Sagging moment
- Sample
- Sampled-data control system
- Sampling (of a signal)
- Sandstone
- Satellite navigation
- Saturation
- Scaffolding
- Scan
- Scantling
- Scattered-light meter
- Scattering
- Schmitt trigger
- Scotch mist
- Scotopic Vision
- Scour
- Screed
- Screen
- Screen (2)
- Screen wall
- Screen-protected enclosure (or machine)
- Screened cable
- Screened loop antenna
- Screened transformer
- Screw
- Screw Cap
- Sea
- Sea (2)
- Sea clutter
- Sea horizon
- Seabed
- Sealed cell
- Search
- Search coil
- Seaward pierhead
- Second moment of area
- Secondary battery
- Secondary cell
- Secondary Light Source
- Secondary phase error
- Secondary radar
- Section
- Section modulus
- Sector (of a sector light)
- Sector Angle
- Sector display
- Sector Light
- Sector scanning
- Seismic forces