NAVIKNOT

NAVIKNOT
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NAVIKNOT

Product catalog summary
Overview: The NAVIKNOT Multisensor Speed Log Series by Sperry Marine is a modern speed log system using satellite technology (GPS) for dual-axis speed over ground measurement. It is suitable for various vessel types, including cruise ships, tankers, and megayachts, offering high accuracy and flexibility.
Specifications: The series includes models such as NAVIKNOT 350 E (Electromagnetic, Single-Axis Water Speed), NAVIKNOT 450 D (Doppler, Single-Axis Water Speed), and NAVIKNOT 600 S, 600 SE, and 600 SD (Satellite-based, Dual-Axis Ground Speed). These systems provide speed accuracy of ±1% or 0.1 knots, whichever is greater.
Control and Display Units: The series features large color TFT displays with selectable colors, supporting various speed and distance interfaces. They are designed for all vessel types and offer simple, low-cost installation.
Operating Principles:
  • Electromagnetic Sensor: Uses a coil to create a magnetic field to detect motion through water.
  • Doppler Transducer: Measures speed through water using Doppler frequency shift.
  • Satellite Sensor: Utilizes GPS signals for longitudinal and transverse ground speeds, enhancing docking accuracy.
Performance:
  • Water Speed: Electromagnetic sensors range from -20 to +60 knots; Doppler transducers range from -50 to +50 knots.
  • Ground Speed: Satellite sensors range from -99 to +99 knots for both longitudinal and transverse speeds.
Installation and Environmental Conditions: Designed for various installation configurations with protection grades from IP 23 to IP 65, operating within temperatures of -15°C to +55°C, compliant with IEC 60945 standards.
Additional Sensor Specifications:
  • FNF III, Type 4874: For steel and aluminum hulls, speed range -20 to +35 knots, submersible to 20 meters, 24V excitation voltage.
  • FNF I Yacht, Type 4040: Similar to Type 4874, suitable for steel and aluminum hulls.
  • FNF II Yacht, Type 4120: For wooden and fiberglass hulls, similar specifications as previous models.
  • FNF I Yacht, Type 4726: Supports speeds up to 60 knots for steel and aluminum hulls.
  • Doppler Transducer, Type 4983: For steel and aluminum hulls, speed range -50 to +50 knots, submersible to 35 meters.
  • Doppler Transducer, Type 4978: Similar to Type 4983, for tank mount installations in steel hulls.
Installation and Replacement: Most sensors can be replaced without drydocking, with cable lengths between sensors and preamplifiers ranging from 18 to 40 meters.
Operational Conditions: Sensors and transducers operate within temperatures of -2°C to +40°C, with a protection grade of IP 68 for submersion capabilities.
Company Information: Sperry Marine, part of Northrop Grumman, provides global support and emphasizes verifying technical data at the time of order due to potential product improvements.
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Catalog excerpts

NAVIKNOT-1

NAVI KNOT Multisensor Speed Log Series The Ultimate in Speed Log Flexibility

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NAVIKNOT-2

Navigating into the 21st Century... ...with the most modern Satellite Technology The NAVIKNOT 600 Series Speed Log utilizes satellite-based technology (GPS) to determine dual-axis speed over ground. The vessel's dual-axis ground speed is shown on a large colour NAVIKNOT 600 SD Control and Display Unit Dual-Axis Ground Speed The Ville de Bordeaux is equipped with a complete Sperry Marine Integrated Bridge System including a NAVIKNOT 600 SD Multisensor Speed Log.

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NAVIKNOT-3

Sperry Marine Proven Expertise The NAVIKNOT Multisensor Speed Log Series is a new generation in a long line of very successful Sperry Marine speed logs. The 350, 450 and 600 series offer unlimited flexibilty and have been designed with the most modern computer tools for application on all types and sizes of vessels including cruise ships, container ships, tankers, megayachts and a wide variety of other craft, both new build and Electromagnetic Speed Log System, Single-Axis Water Speed Doppler Speed Log System, Single-Axis Water Speed Satellite Speed Log System, Dual-Axis Ground Speed, Docking...

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NAVIKNOT-4

Performance and Operating Principle Water Speed from Electromagnetic Sensors (350 E, 600 SE) Water speed range Accuracy, relative to water ±1 % or 0.1 kn of true speed, flow at location of sensor whichever Is greater Water Speed from Doppler Transducers (450 D, 600 SD) Water speed range -50 kn to +50 kn Accuracy ±1 % or 0.1 kn of true speed, 1 sigma error of speed displayed for a period of 5 minutes (under good hydrostatic conditions, pitch angles < 5°) Ground Speed from Satellite (600 S, 600 SE, 600 SD) Ground speed range -99 kn to +99 kn longitudinal Accuracy of ground speed ±1 % or 0.1 kn...

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NAVIKNOT-5

Electromagnetic Speed Log System - Single-Axis Water Speed Sperry Marine Master Control and Display Unit Remote Control and Display Unit Speed Repeaters Optional Accessory Equipment Input only Double-End Ferry Mode Electromagnetic Sensors (see pages u-15) Electronics Unit Analogue Voltage Analogue Current Watch Alarm Speed Limit Power Failure

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NAVIKNOT-6

NAVIKNOT 450 D Basic System Configuration Doppler Speed Log System - Single-Axis Water Speed Master Control and Display Unit Remote Control and Display Unit Speed Repeaters Optional Accessory Equipment input only Double-End Ferry Mode Doppler Transducers (see pages u-15) Doppler Transducer Doppler Transducer Electronics Unit Analogue Voltage Watch Alarm Speed Limit Power Failure

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NAVIKNOT-7

Sperry Marine Satellite Speed Log System - Dual-Axis Ground Speed Dual Satellite Master Control and Display Unit Remote Control and Display Unit Remote Control and Display Unit Ferry Mode External Rate of Turn J docking accuracy. Speed Repeaters Optional Accessory Equipment Analogue Voltage Analogue Current Watch Alarm Speed Limit Power Failure

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NAVIKNOT-8

NAVIKNOT 600 SE Basic System Configuration Satellite & Electromagnetic Speed Log System - Dual-Axis Ground Speed & Single-Axis Water Speed Dual Satellite Master Control and Display Unit Remote Control and Display Unit Remote Control and Display Unit Ferry Mode External Rate of Turn J docking accuracy. Speed Repeaters Optional Accessory Equipment Analogue Current Watch Alarm Speed Limit Power Failure Electromagnetic Sensors (see pages u-15) Input only

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NAVIKNOT-9

Sperry Marine Satellite & Doppler Speed Log System - Dual-Axis Ground Speed & Single-Axis Water Speed Dual Satellite Master Control and Display Unit Remote Control and Display Unit Remote Control and Display Unit Ferry Mode External Rate of Turn J docking accuracy. Speed Repeaters Optional Accessory Equipment input only Doppler Transducers (see pages u-15) Doppler Transducer Doppler Transducer Analogue Voltage Analogue Current Watch Alarm Speed Limit Power Failure

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NAVIKNOT-10

Major Displays Speed Over Ground Speed Through Water GPS Position and Satellite Table 1 Longitudinal speed over ground 2 Transverse speed over ground 3 Total miles counter 4 Daily miles counter 6 Speed through water 7 Transverse speed over ground at bow 8 Transverse speed over ground at stern 10 Course over ground 13 Satellite identification number 14 Signal to noise ratio 18 Universal time coordinated 19 GPS vertical and horizontal dilution of precision Selectable Display Colours The display colours of all NAVIKNOT Control and Display Units are selectable by the operator. black (night)

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NAVIKNOT-11

Master Control and Display Unit Remote Control and Display Unit (optional) Master Control and Display Unit Remote Control and Display Unit (optional) Remote Control and Display Unit (optional) Sperry Marine For installation in a console. Width 192, height 96, depth 44 mm. Installation depth 100 mm. Weight 0.6 kg. With 2.8 m cable. IP 56. Installed in a console frame. Width 223, height 127, depth 44 mm. Installation depth 100 mm. Weight 1.1 kg. With 2.8 m cable. IP 23. In a housing with bracket attachment. Width 256, max. height 155, max. depth 116 mm. Weight 1.6 kg. With 2.8 m cable. IP 56. For...

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NAVIKNOT-12

Dual Satellite Antenna, Electronics Units Dual Satellite Antenna Overall Dimensions _ f Weight with 15 m cable: antenna 1.9 kg; cable 1.0 kg Weight with 50 m cable: antenna 1.9 kg; cable 3.2 kg Electronics Unit for NAVIKNOT 350 E & 450 D Overall Dimensions Ambient Temperature Range Environmental Conditions / EMC: in accordance with EC 60945 Magentic Clearance to standard magnetic compass: 0.5 m to steering magnetic compass: 0.4 m reduced, to standard magnetic compass: 0.3 m Electronics Unit for NAVIKNOT 600 S, 600 SE & 600 SD Overall Dimensions Ambient Temperature Range depth: 500 mm Protection...

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NAVIKNOT-13

Universal Digital Speed Repeater Overall Dimensions weight: 1.0 kg with cable Sperry Marine Console Version Both versions: Ambient Temperature Range Environmental Conditions / EMC: in accordance with EC 60945 Overall Dimensions weight: 2.2 kg with cable with a Mounting Bracket Analogue Speed Repeaters Console Version Speed Ranges Console Version Speed Ranges Console Version Speed Range with a Mounting Bracket Speed Range Overall Dimensions All Analogue Speed Repeaters: Ambient Temperature Range

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