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Compass
36 products
36 products
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$656.99
Ritchie FN-201 Navigator Flush Mount Compass - Black
The Richie Navigator Compass features a 4-1/2" PowerDamp Flat Card Dial. Flat-Card Dials allow you to look down on the compass to see the course heading. Large numerals make this compass easy to read. The PowerDamp system eliminates spinning and dial jumping at high speeds, ensuring an accurate reading even in rough conditions. The flush mount is ideal for today's compact dashboard designs. Ritchie recommends mounting your compass directly in front of the helm, as well as directly above the centerline of the hull. All Ritchie compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, even under severe conditions.
Powerful DirectiveForce Magnets for fast heading lock-on
12V Green LED lighting standard
Built-in compensators to easily adjust for deviation
Movable sun shield
45 degree lubber lines
High temperature construction for extended operating range
100% repairable
Specifications:
4-1/2" Dial
Fits 4.75" to 5.125"Mounting hole
$271.49
Ritchie F-83 Voyager Flush Mount Compass - White
The Ritchie F-83 Voyager Compass has a 3" CombiDamp Dial and white housing. Combi Dials are a combination of direct-read and flat-card design dials, allowing them to be read from both above and directly in front of the compass. Voyager Compasses utilize Directiveforce Magnets, which provide superior accuracy and smooth, rapid response. Directiveforce Magnets are field balanced and matched to each compass model, dial size, and size. All Ritchie Voyager Compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, under the most severe conditions.
Features:
Exclusive Built-in Green NiteVu Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
Custom Fitted Protective Covers Available
100% Repairable
Exclusive 5-Year Ritchie Warranty
Specifications:
Dial Size: 3"
Frequently Asked Questions
- What is the Ritchie F-83 Voyager Flush Mount Compass used for? The Ritchie F-83 Voyager Flush Mount Compass is a marine navigation compass with a 3-inch CombiDamp dial and white housing. Its combination direct-read and flat-card design allows the compass to be read from above and directly in front, making it suitable for marine navigation.
- What type of dial does the Ritchie F-83 Voyager Compass have? The Ritchie F-83 Voyager Compass features a 3-inch CombiDamp Dial. The CombiDamp design combines direct-read and flat-card characteristics, allowing the dial to be viewed from both above and directly in front of the compass.
- How does the Ritchie F-83 Voyager Compass provide fast heading lock-on? The Ritchie F-83 Voyager Compass uses DirectiveForce Magnets designed to provide smooth, rapid response and fast heading lock-on. The magnets are field balanced and matched to the compass model and dial size.
- Does the Ritchie F-83 Voyager Compass have night illumination? Yes. The Ritchie F-83 Voyager Compass has built-in green NiteVu night illumination. It also includes a movable sun shield for daytime use.
- Can the Ritchie F-83 Voyager Compass be adjusted for deviation? Yes. Built-in compensators allow the Ritchie F-83 Voyager Compass to be adjusted for deviation. The compass also uses a scientifically matched sapphire jewel and hardened steel pivot dial movement for smooth dial operation and fast lock-on.
- Does the Ritchie F-83 Voyager Compass come with a warranty? Yes. The Ritchie F-83 Voyager Compass includes an exclusive 5-year Ritchie warranty. The compass is also 100% repairable, and custom fitted protective covers are available.
$271.49
Ritchie F-83 Voyager Flush Mount Compass - Black
The Ritchie F-83 Voyager Compass has a 3" CombiDamp Dial and black housing. Combi Dials are a combination of direct-read and flat-card design dials, allowing them to be read from both above and directly in front of the compass. Voyager Compasses utilize Directiveforce Magnets, which provide superior accuracy and smooth, rapid response. Directiveforce Magnets are field balanced and matched to each compass model, dial size, and size. All Ritchie Voyager Compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, under the most severe conditions.
Features:
CombiDamp Dial
Exclusive Built-in Green NiteVu Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
Custom Fitted Protective Covers Available
100% Repairable
Exclusive 5-Year Ritchie Warranty
Specifications:
Dial Size: 3"
Frequently Asked Questions
- What is the Ritchie F-83 Voyager Flush Mount Compass designed for? The Ritchie F-83 Voyager Flush Mount Compass is a marine compass with a 3-inch CombiDamp dial designed for heading navigation. Its dial combines direct-read and flat-card viewing, allowing it to be read from above or directly in front of the compass.
- What type of dial does the Ritchie F-83 Voyager Compass use? The Ritchie F-83 Voyager uses a 3-inch CombiDamp dial. This design combines direct-read and flat-card characteristics so the compass can be viewed from above or directly in front.
- How does the Ritchie F-83 Voyager Compass provide smooth heading response? The compass uses DirectiveForce Magnets that are field balanced and matched to the compass model and dial size. It also features a hardened steel pivot and triple cup sapphire jewel movement designed for smooth dial operation and fast heading lock-on.
- Does the Ritchie F-83 Voyager Flush Mount Compass have night illumination? Yes. The Ritchie F-83 Voyager Flush Mount Compass includes built-in green NiteVu night illumination. It also has a movable sun shield and built-in compensators for adjusting deviation.
- What construction and durability features does the Ritchie F-83 Voyager Compass have? The Ritchie F-83 Voyager features high-temperature composite construction for an extended operating range. It is also 100% repairable and includes an exclusive 5-year Ritchie warranty.
- What is the dial size of the Ritchie F-83 Voyager Flush Mount Compass? The Ritchie F-83 Voyager Flush Mount Compass has a 3-inch dial. Its CombiDamp design allows the heading to be read from both above and directly in front of the compass.
$271.49
Ritchie F-82 Voyager Compass Flush Mount
Voyager Compass Features
3" PowerDamp Flat Dial
Easily Installed, Fits 4 1/8" (10.48 cm) Mounting Hole
Exclusive Built-in Green NiteVu Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
45 Degree Lubber Lines
High Temperature Composite Construction for Extended Operating Range
Custom Fitted Protective Covers Available
100% Repairable
Exclusive 5-Year Ritchie Warranty
Frequently Asked Questions
- What is the Ritchie F-82 Voyager Compass Flush Mount? The Ritchie F-82 Voyager Compass Flush Mount is a marine compass with a 3-inch PowerDamp Flat Dial. It is designed for flush mounting and features built-in green NiteVu night illumination, a movable sun shield, 45-degree lubber lines, and high-temperature composite construction.
- What mounting hole does the Ritchie F-82 Voyager Compass fit? The Ritchie F-82 Voyager Compass fits a 4 1/8-inch (10.48 cm) mounting hole. The product description also states that the compass is easily installed.
- Does the Ritchie F-82 Voyager Compass have night illumination? Yes. The F-82 Voyager features exclusive built-in green NiteVu night illumination. This provides illumination for viewing the compass in dark conditions.
- How does the Ritchie F-82 Voyager Compass adjust for deviation? The F-82 Voyager has built-in compensators that allow for adjustment for deviation. It also features powerful DirectiveForce Magnets for fast heading lock-on and a scientifically matched sapphire jewel and hardened steel pivot dial movement.
- What features help with reading the Ritchie F-82 Voyager Compass? The F-82 Voyager features a 3-inch PowerDamp Flat Dial and 45-degree lubber lines. Its movable sun shield can also help with viewing the compass in bright conditions.
- Is the Ritchie F-82 Voyager Compass repairable and covered by a warranty? Yes. The F-82 Voyager is described as 100% repairable and includes an exclusive 5-year Ritchie warranty. Custom fitted protective covers are also available, according to the product description.
$133.99
Ritchie F-50 Explorer Compass, Flush Mount
Explorer Compass Features
2 3/4" Easy to Read Direct Reading Dial>
Easily Installed, Fits 3 3/4" (9.53 cm) Mounting Hole
Internal Green Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
100% Repairable
Exclusive 5-Year Ritchie Warranty
Frequently Asked Questions
- What is the Ritchie F-50 Explorer Compass used for? The Ritchie F-50 Explorer Compass is a flush-mount marine compass designed to provide easy-to-read heading information. Its 2-3/4" Direct-Read dial, DirectiveForce Magnets, and hardened steel pivot dial movement provide fast heading lock-on and smooth operation.
- What size mounting hole does the Ritchie F-50 Explorer Compass require? The Ritchie F-50 Explorer Compass has a 2-3/4" Direct-Read dial and fits a 3-3/4" mounting hole. Its flush-mount design allows the compass to be installed into the specified mounting opening.
- Does the Ritchie F-50 Explorer Compass have night illumination? Yes. The Ritchie F-50 Explorer Compass features internal green night illumination. This allows the compass dial to be illuminated for viewing when operating in low-light conditions.
- Can the Ritchie F-50 Explorer Compass be adjusted for deviation? Yes. The compass has built-in compensators that allow for deviation adjustment. It also uses powerful DirectiveForce Magnets for fast heading lock-on and a scientifically matched sapphire jewel and hardened steel pivot dial movement.
- What features help protect the Ritchie F-50 Explorer Compass in marine environments? The Ritchie F-50 Explorer Compass uses high-temperature composite construction for an extended operating range. It also includes a movable sun shield and a 100% repairable design for long-term serviceability.
- What warranty does the Ritchie F-50 Explorer Compass include? The Ritchie F-50 Explorer Compass includes an exclusive 5-year Ritchie warranty.
$133.99
Ritchie F-50 Explorer Compass (Flush Mount) - Black
2 3/4" Easy to Read Direct Reading Dial
Easily Installed, Fits 3.75" (9.53 cm) Mounting Hole.
Internal Green Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
100% Repairable
Exclusive 5-Year Ritchie Warranty
Frequently Asked Questions
- What is the Ritchie F-50 Explorer Compass designed for? The Ritchie F-50 Explorer Compass is a flush-mount compass with a 2-3/4-inch direct-reading dial. It is designed for easy installation and fits a 3.75-inch mounting hole.
- What size mounting hole does the Ritchie F-50 Explorer Compass require? The Ritchie F-50 Explorer Compass fits a 3.75-inch, or 9.53 cm, mounting hole. Its flush-mount design allows the compass to be installed into the specified mounting opening.
- Does the Ritchie F-50 Explorer Compass have night illumination? Yes. The Ritchie F-50 Explorer Compass features internal green night illumination, allowing the direct-reading dial to be illuminated for nighttime use.
- How can the Ritchie F-50 Explorer Compass be adjusted for deviation? The Ritchie F-50 Explorer Compass includes built-in compensators that allow the compass to be adjusted for deviation. This feature provides a way to make the specified compass adjustment during installation or setup.
- What features are included in the Ritchie F-50 Explorer Compass? The Ritchie F-50 Explorer Compass features a movable sun shield, DirectiveForce magnets for fast heading lock-on, and a scientifically matched sapphire jewel and hardened steel pivot dial movement. It also uses high-temperature composite construction.
- What warranty does the Ritchie F-50 Explorer Compass include? The Ritchie F-50 Explorer Compass includes an exclusive five-year Ritchie warranty and is described as 100% repairable. Its high-temperature composite construction is designed for an extended operating range.
$754.99
Ritchie BN-202 Navigator Bulkhead Compass
The Ritchie BN-202 Navigator compass fits 5.75" mounting holes for easy bulkhead installation. The hardened steel pivot dial combined with the fiberglass reinforce bowl makes for a durable compass that will last in marine environments. The brite white lettering on red dial combined with the 45° lubber lines and built in 12V Amber LED lighting allows for easy reading in any weather. An internal gimbal system provides pitch and roll stability while the Compensators allow for easy deviation adjustments on the fly.
Features:
Fiberglass Reinforced Bowl
Internal Gimbal Systems
45° Lubber Lines
Repairable
Built-in Inclinometer
Built-in Compensators
Hardened Steel Pivot Dial
Built-in 12V Amber LED Lighting
Frequently Asked Questions
- What is the Ritchie BN-202 Navigator Bulkhead Compass? The Ritchie BN-202 Navigator Bulkhead Compass is a marine compass designed for bulkhead installation. It features a fiberglass-reinforced bowl, hardened steel pivot dial, internal gimbal system, 45-degree lubber lines, and built-in 12V amber LED lighting for compass visibility.
- What mounting hole does the Ritchie BN-202 Navigator Compass fit? The Ritchie BN-202 Navigator Compass fits 5.75-inch mounting holes for bulkhead installation. The product description specifically identifies this mounting size for installation.
- Does the Ritchie BN-202 Compass have built-in lighting? Yes. The BN-202 features built-in 12V amber LED lighting. Combined with the bright white lettering on the red dial, this lighting helps make the compass easier to read in different weather conditions.
- How does the Ritchie BN-202 Compass provide stability? The BN-202 uses an internal gimbal system to provide pitch and roll stability. This design helps maintain compass stability when the vessel experiences pitch and roll.
- Can the Ritchie BN-202 Navigator Compass be adjusted for deviation? Yes. The BN-202 has built-in compensators that allow for deviation adjustments. It also features a hardened steel pivot dial and 45-degree lubber lines for heading reference.
- What other features does the Ritchie BN-202 Navigator Compass have? The BN-202 includes a fiberglass-reinforced bowl, built-in inclinometer, hardened steel pivot dial, 45-degree lubber lines, internal gimbal system, built-in compensators, and built-in 12V amber LED lighting. The compass is also described as repairable.
$283.49
Ritchie B-81 Voyager Bracket Mount Compass
This Ritchie B-81 Voyager compass features a Combi-Dial are a combination of direct-read dials and flat-card dials. Combi-Dials can be read from both above and directly in front of the compass, maximizing readability from any angle. When it comes to positioning your compass, Ritchie recommends mounting your compass directly in front of the helm, as well as directly above the centerline of the hull. This compass features a bracket mount, allowing you to mount your Voyager to the deck or dash, whichever provides a proper viewing angle.
Ritchie compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, even under severe conditions. The Voyager utilizes DirectiveForce Magnets, which are field balanced and matched specifically for the Voyager Compass. These magnets seek and lock on to magnetic North, providing superior accuracy and smooth, rapid response.
Features:
Adjustable and removable with bracket and thumbscrews
Exclusive built-in Green NiteVu night illumination
Built-in compensators to easily adjust for deviation
Powerful DirectiveForce Magnets for fast heading lock-on
Movable sun shield
High temperature composite construction for extended operating range
Custom fitted protective covers available
100% Repairable
Specifications:
Dial Size: 3"
Frequently Asked Questions
- What is the Ritchie B-81 Voyager Bracket Mount Compass used for? The Ritchie B-81 Voyager Bracket Mount Compass is a marine navigation compass designed for clear heading readings from different viewing angles. Its 3-inch Combi-Dial combines direct-read and flat-card designs, allowing the compass to be read from above or directly in front.
- How is the Ritchie B-81 Voyager Bracket Mount Compass installed? The B-81 uses an adjustable and removable bracket with thumbscrews, allowing it to be mounted on a deck or dash. Ritchie recommends positioning the compass directly in front of the helm and directly above the centerline of the hull.
- Does the Ritchie B-81 Voyager Compass have night illumination? Yes. The Ritchie B-81 Voyager features built-in Green NiteVu night illumination for reading the compass in low-light conditions. It also has a movable sun shield to help with viewing in brighter conditions.
- Can the Ritchie B-81 Voyager Compass be adjusted for deviation? Yes. The B-81 Voyager has built-in compensators that allow for deviation adjustments. Its DirectiveForce Magnets are field balanced and matched specifically for the Voyager Compass to provide fast heading lock-on and smooth response.
- What type of dial and movement does the Ritchie B-81 Voyager Compass use? The compass has a 3-inch Combi-Dial that combines direct-read and flat-card designs. It uses a hardened steel pivot and triple cup sapphire jewel movement that is microscopically matched for smooth dial operation and fast lock-on.
- Is the Ritchie B-81 Voyager Bracket Mount Compass repairable? Yes. The Ritchie B-81 Voyager Bracket Mount Compass is 100% repairable. It also features high-temperature composite construction for an extended operating range, and custom-fitted protective covers are available.
$131.49
Ritchie B-51W Explorer Bracket Mount Compass
The Ritchie Explorer Marine Compass is a black compass featuring an easy to read Direct-Read dial. Direct-Read dials allow you to see the compass heading and lubber line from directly in front. Can easily be adjusted and removed with bracket mount and thumbscrews. Ritchie's Explorer compasses have built-in compensators. These compensators are non-interactive magnets that are balanced and optimally spaced for accurate correction. Explorer Compasses utilize Directiveforce Magnets, which provide superior accuracy and smooth, rapid response. Directiveforce Magnets are field balanced and matched to each compass model, dial size, and size. All Ritchie Explorer Compasses use a Hardened Steel Pivot and Triple Cup Sapphire Jewel Movement. They are microscopically matched to provide smooth dial operation and fast lock-on, under the most severe conditions.
Easy to Read Direct-Read Dial
Adjustable and Removable with Bracket and Thumbscrews
Internal Green Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
100% Repairable
Exclusive 5-Year Ritchie Warranty
Specifications:
Dial Size: 2-3/4"
Frequently Asked Questions
- What is the Ritchie B-51W Explorer Bracket Mount Compass used for? The Ritchie B-51W Explorer Bracket Mount Compass is a marine navigation compass with an easy-to-read Direct-Read dial. The dial allows the compass heading and lubber line to be viewed directly from in front, while the bracket mount and thumbscrews allow the compass to be adjusted and removed.
- What size dial does the Ritchie B-51W Explorer Compass have? The Ritchie B-51W Explorer Bracket Mount Compass has a 2-3/4-inch dial. Its Direct-Read design provides a clear view of the compass heading and lubber line from directly in front.
- Can the Ritchie B-51W compass be adjusted or removed from its mount? Yes. The Ritchie B-51W Explorer Compass uses a bracket mount with thumbscrews that allow the compass to be adjusted and removed. This design provides flexibility when positioning the compass for viewing and when removing it from the mounting bracket.
- Does the Ritchie B-51W Explorer Compass have built-in deviation compensation? Yes. The Ritchie B-51W features built-in compensators consisting of non-interactive magnets that are balanced and optimally spaced for accurate correction. These compensators allow deviation to be adjusted, while DirectiveForce Magnets provide fast heading lock-on and smooth response.
- Does the Ritchie B-51W compass have night illumination? Yes. The Ritchie B-51W Explorer Compass has internal green night illumination for viewing the compass dial in low-light conditions. It also includes a movable sun shield as part of its design.
- What type of movement and construction does the Ritchie B-51W compass use? The Ritchie B-51W uses a scientifically matched sapphire jewel and hardened steel pivot dial movement designed for smooth dial operation and fast lock-on. It also features high-temperature composite construction for an extended operating range and is 100% repairable.
$131.49
Ritchie B-51 Explorer Compass - Bracket Mount
Explorer Compass Features
2 3/4" Easy to Read Direct Reading Dial
Adjustable and Removable with Bracket and Thumbscrews
Internal Green Night Illumination
Built-in Compensators to Easily Adjust for Deviation
Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement
Powerful DirectiveForce Magnets for Fast Heading Lock-on
Movable Sun Shield
High Temperature Composite Construction for Extended Operating Range
100% Repairable
Exclusive 5-Year Ritchie Warranty
Frequently Asked Questions
- What is the Ritchie B-51 Explorer Compass - Bracket Mount used for? The Ritchie B-51 Explorer Compass - Bracket Mount is a direct-reading compass designed to provide heading information. It features a 2 3/4-inch easy-to-read dial and a bracket mount with thumbscrews that allows the compass to be adjusted and removed.
- Can the Ritchie B-51 Explorer Compass be adjusted for deviation? Yes. The Ritchie B-51 Explorer Compass has built-in compensators that allow the compass to be adjusted for deviation. This provides a convenient way to make heading adjustments using the compass's integrated compensation system.
- Does the Ritchie B-51 Explorer Compass have night illumination? Yes. The B-51 Explorer Compass features internal green night illumination, allowing the compass dial to be illuminated for viewing in low-light conditions.
- How is the Ritchie B-51 Explorer Compass mounted? The B-51 uses a bracket mount with thumbscrews. The compass can be adjusted and removed from the bracket, providing flexibility when positioning or accessing the compass.
- What features help the Ritchie B-51 Explorer Compass maintain accurate heading movement? The compass uses a scientifically matched sapphire jewel and hardened steel pivot dial movement, along with DirectiveForce magnets designed for fast heading lock-on. It also includes built-in compensators for adjusting deviation.
- Is the Ritchie B-51 Explorer Compass repairable and covered by a warranty? Yes. The B-51 Explorer Compass is described as 100% repairable and includes an exclusive 5-year Ritchie warranty. Its housing uses high-temperature composite construction for an extended operating range.
$194.59
Gen3 Marine Padded Aluminum Folding Deck Chair w/ Compass Logo
The Gen3 Marine padded folding deck chair offers comfort and stability, whether you're sitting on the dock or on deck. Constructed with an anodized aluminum frame with vinyl seat cushions and padded armrests. The Gen3 Padded Deck Chair has eight legs that provide additional support and strength. This chair features a nautical compass rose design that is sure to look good on any vessel. Folds for easy storage when not in use.
Specifications:
Overall height: 32"
Overall depth: 25"
Overall width: 26"
Bottom seat cushion width: 19.5"
Bottom seat cushion depth: 14"
Cushion thickness: 3"
1 Year Warranty
Non-skid, non-marring feet prevents sliding
Padded armrests for additional comfort
Nautical rose compass design
Folds for easy storage
$66.99
Davis Illuminated Hand Bearing Compass
Using a Davis Instruments precision marine hand bearing compass, you can easily obtain quick magnetic bearings on shore or floating objects. Obtain a bearing simply by aligning front and rear sights on an object and reading off bearing. This compass is excellent for yachtsmen, racers, and fishermen. Uses include quick bearing or position set, determination of angular gain or loss on the competition while racing, checking distance offshore, establishing lee-bow set while cruising or racing in currents, drift vectoring, and plotting a line of position.
Features a liquid-damped compass card graduated in 5 degree segments and a large, contoured handle. This illuminated model has a solid-state LED illumination system which floods the compass capsule and sight vane with soft light. The LED will last for the lifetime of the compass. Lanyard and instructions included.
How to Use Your Davis Illuminated Hand Bearing Compass
Sighting objects
Hold the compass in a relaxed position at arms length, with the yellow cursor line facing you. With the compass slightly tipped so both pointers are visible, rotate your arm and upper body until both pointers are in-line with the object being sighted. Read the magnetic bearing as it appears at the yellow cursor line.
Navigating Using your Sightings
A line of position is easy to obtain. Find an object that is easy to identify on a chart and take a sighting to determine its magnetic bearing.
Draw a line from the object using its magnetic bearing and you know that you are somewhere along that line of position. Take a sighting of another object and plot its line of position. Your position is where the two lines cross.
Plotting Distance Offshore
This is easiest and most accurate when your compass course is roughly parallel to the shoreline. You must also know your speed over ground.
Note the exact time that you are abeam of (perpendicular to) or 45 degrees of a prominent object on shore like a lighthouse, smoke stack or radio tower.
Take the exact time again when you are perpendicular to or 45 degrees off the object. Plot these sightings on the chart and, with your distance run as one leg, you have a right triangle.
Your speed multiplied by the time equals both your distance offshore and the distance run.
Predicting Collision Course
Take a sighting on any moving or stationary object that you suspect might be on a collision course and note its bearing. If repeated sightings yield the same bearing, you are on a collision course. Note that a collision course with a stationary object means that you are being "set" by drift or tide and you must alter course to avoid a collision.
Checking Drift While at Anchor
Take sightings on any two or more objects on the shore and write them down. Radical changes in their magnetic bearings could indicate that your anchor is dragging.
Frequently Asked Questions
- What is the Davis Illuminated Hand Bearing Compass used for? The Davis Illuminated Hand Bearing Compass is designed to obtain quick magnetic bearings on shore or floating objects. It can be used for navigation, plotting lines of position, checking distance offshore, evaluating drift, and taking bearings while cruising, racing, fishing, or sailing.
- How do you take a bearing with the Davis Illuminated Hand Bearing Compass? Hold the compass at arm's length with the yellow cursor line facing you. Align the front and rear pointers with the object being sighted by rotating your arm and upper body. Once the pointers are in line with the object, read the magnetic bearing at the yellow cursor line.
- What features does the Davis Illuminated Hand Bearing Compass have? The compass features a liquid-damped compass card graduated in 5-degree segments, a large contoured handle, and a solid-state LED illumination system. The LED floods the compass capsule and sight vane with soft light and is designed to last for the lifetime of the compass. Can …
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