Davis Instruments

Davis Sailing Air-Flow Tels

These lightweight, ripstop nylon Air-Flow Tels attach to sails with waterproof adhesive locator disks-no holes required! Use Tels to see the air flow across the sails; this allows you to traim sails for maximum performance. The result is better boat speed, less pinching, and no guesswork about placing the jib sheet lead forward or aft.

Features:

Comes with 14 High Visibility Tels (in red and green)

No hole required

Click to Download Davis Air-Flow Tels Instructions

Davis FSR Fiberglass Stain Remover Gel - 2 Liter

Davis Fiberglass Stain Remover is a unique stain absorbing gel that is ideal for removing oil, rust, exhaust, waterline and transom stains. Its non-abrasive quality makes it safe to use on white painted surfaces as well as on gel-coat. Use FSR anywhere fiberglass stains may pop up including shower stalls and furniture. Can also be used to remove road soil from trailered boats and recreational vehicles. Davis Fiberglass Stain Remover is easy to use and doesn't require any sanding or compounding-simply apply, wait, then rinse off.

Features:

2 Liter (67.8 fl oz) bottle

Non-abrasive, safe on most surfaces

Simple application with a brush, sponge, or cloth

Removes oil, rust, exhaust, waterline, and transom stains

How to Use Davis Fiberglass Stain Remover Gel

Shake well before using.

Test a small area first to be sure FSR will not damage finish.

Apply with cloth, brush or sponge.

Allow to stand for a few minutes.

Wipe off or rinse with water.

Repeat for stubborn stains

Frequently Asked Questions

• What is Davis FSR Fiberglass Stain Remover Gel used for? Davis FSR Fiberglass Stain Remover Gel is a non-abrasive gel designed to remove oil, rust, exhaust, waterline, and transom stains. It can be used on fiberglass stains, white painted surfaces, gel-coat, shower stalls, furniture, and road soil on trailered boats and recreational vehicles.
• Is Davis FSR Fiberglass Stain Remover Gel safe to use on gel-coat? Yes. Davis FSR is described as non-abrasive and safe to use on gel-coat and white painted surfaces. The instructions recommend testing a small area first to make sure the product will not damage the finish.
• How do you use Davis FSR Fiberglass Stain Remover Gel? Shake the gel well before use, then apply it with a cloth, brush, or sponge. Allow it to stand for a few minutes before wiping it off or rinsing with water. Repeat the application for stubborn stains.
• What types of stains can Davis FSR remove? Davis FSR Fiberglass Stain Remover Gel is formulated to remove oil, rust, exhaust, waterline, and transom stains. It can also be used to remove road soil from trailered boats and recreational vehicles.
• Does Davis FSR Fiberglass Stain Remover require sanding or compounding? No. The product is designed for simple application without sanding or compounding. Apply the gel with a cloth, brush, or sponge, allow it to stand for a few minutes, then wipe it off or rinse with water.
• How much Davis FSR Fiberglass Stain Remover Gel is included? The Davis FSR Fiberglass Stain Remover Gel is supplied in a 2-liter bottle, equivalent to 67.8 fluid ounces. The non-abrasive formula can be applied with a brush, sponge, or cloth as directed.

Davis Fiberglass Stain Remover 16oz

The Davis Fiberglass Stain Remover is a unique stain absorbing gel that is ideal for removing oil, rust, exhaust, waterline and transom stains. This stain remover can be used anywhere fiberglass stains may occur - show stalls, furniture, etc. Can also be used for removing road soil from trailered boats and recreational vehicles. Davis Fiberglass Stain Remover is non-abrasive, so it's safe to use on white painted surfaces as well as on gel-coat.

Davis Fiberglass Remover requires no sanding or compounding. Shake first, then simply apply with a brush, sponge or cloth. Wait a few minutes and then wipe off or rinse. Repeat for stubborn stains.

Color of the product may vary

Key Features:

16 fl. oz.

Non-abrasive, safe on most surfaces

Simple application with a brush, sponge or cloth

Click to Download Davis Fiberglass Stain Remover Instructions

Davis Quick Fist Rubber Clamp - Pair

Securing equipment is simple with the Davis Quick Fist Rubber Clamp. Quick Fist is a rubber clamp that mounts easily to surfaces to keep tools and equipment firmly in place. These clips are made of heavy duty transportation-grade rubber and are UV-resistant. Quick Fist clamps hold up in extreme heat and cold and will not rust or corrode, making them great for marine use. Quick Fist clamps mount easily  with #10 bolts or screws.

Features:

Package includes 2 clamps

Holds objects from 7/8" to 2-1/4" in diameter

Each clamp supports approximately 22 lbs.

Mounting base measures 7/8 x 2-3/4"

Davis Lil' Fella Trolling Plate

The Davis Lil' Fella Trolling Plate is a fisherman's answer to correct trolling speed. This trolling plate is the little brother to the Davis Happy Troller, and is for use with outboard motors up to 25 HP. The Lil Fella trolling plate is constructed of the highest quality polycarbonates with stainless steel hardware. Plate locks "down" for trolling and locks "up" for cruising. Installing the Lil' Fella is easy. This trolling plate comes complete with stainless steel mounting hardware and installation instructions.

Features:

For outboards up to 25 HP

Locks "down" for trolling, "up" for cruising

Comes with full installation and operating instructions

Mounting hardware included

One year warranty

For outboard motors over 25 HP, check out the Davis Happy Troller

Click to Download Davis Lil Fella Trolling Plate Instructions

Davis Whale Tail XL Stabilizer

The Davis Whale Tail XL is an aluminum stabilizer and ski boat fin. With this stabilizer, you can improve the performance in any I/O or outboard motor. The Whale Tail XL extends out behind the propeller to utilize prop wash energy which is normally lost. Whale Tail transforms this energy into lift for immediate response when the throttle is applied. The Whale Tail XL also flattens the wake for water skiing, creating positive, skin-free turns. Use the Whale Tail XL year-round in freshwater or saltwater to improve performance of any boat!

Features:

Unique hydrodynamic design

Stabilizes bow-light boats

Pops skiers up in less time

With bow lowered, visibility is improved-and safety

Smooths out ride in rough water

Reduces porpoising and cavitating

Increases top speed and fuel savings in most applications

Marine-grade aluminum with durable anodized finish

The Davis Whale Tail XL installs in 15 minutes and includes stainless steel hardware!

How to Install a Davis Whale Tail XL Stabilizer

The Whale Tail XL mounts on the anti-cavitation plate of all inboard/outboards and outboards.

Locate the anti-cavitation plate (the horizontal plate just above the propeller). Slide the whale Tail onto the flat side of the anti-cavitation plate, preferably its underside.

Note: Leave no space between the cut out of the Whale Tail and the back of the anti-cavitation plate. On Volvo inboard/outboards, mount Whale Tail on top.

Clamp the Whale Tail in place. Using a 1/4" (6.5 mm) drill bit and the holes in the Whale Tail as a guide, drill four holes through the anti-cavitation plate.

On Volvo, drill through the hollow exhaust anti-cavitation plate.

Note: if the holes in the Whale Tail do not work on your anti-cavitation plate, drill new holes in the Whale Tail for maximum strength.

Insert a 1/4" (6.5mm) bolt in the hole just drilled, the head of the bolt on the Whale Tail side.

Install washer and nut and tighten snugly. Do not over-tighten.

On Volvo, longer bolts will be required: 1/4 x 2" (6.5 mm x 5.4 cm).

Click to Download Davis Whale Tail XL Installation Instructions

Frequently Asked Questions

• What does the Davis Whale Tail XL Stabilizer do? The Davis Whale Tail XL Stabilizer uses prop wash energy to create lift when the throttle is applied, helping improve boat performance. It can stabilize bow-light boats, reduce porpoising and cavitating, smooth the ride in rough water, and improve visibility by lowering the bow. It can also flatten the wake for water skiing.
• What boats and motors is the Davis Whale Tail XL designed for? The Davis Whale Tail XL mounts on the anti-cavitation plate of all inboard/outboard and outboard motors. It is designed to improve performance on boats with these motor configurations and can be used year-round in freshwater or saltwater.
• How is the Davis Whale Tail XL Stabilizer installed? The Whale Tail XL mounts to the anti-cavitation plate above the propeller. Clamp it in position, drill four 1/4-inch holes through the plate using the Whale Tail as a guide, then install the supplied bolts, washers, and nuts. Do not over-tighten the hardware. The product is designed for installation in about 15 minutes.
• What is the Davis Whale Tail XL made from? The Davis Whale Tail XL is made from marine-grade aluminum with a durable anodized finish. The stabilizer includes stainless steel hardware for installation.
• Can the Davis Whale Tail XL help with water skiing? Yes. The Davis Whale Tail XL is designed to flatten the wake for water skiing and help skiers get up in less time. Its design uses prop wash energy to create lift for immediate response when the throttle is applied.
• Are there special installation instructions for Volvo inboard/outboards? Yes. On Volvo inboard/outboards, the Whale Tail XL should be mounted on top of the anti-cavitation plate and drilled through the hollow exhaust anti-cavitation plate. Longer 1/4 x 2-inch bolts are re…

Davis Doel-Fin Boat Stabilizer Fin

Doel-Fin is the original hydrofoil developed by an aeronautical engineer to improve overall performance on all boats with outboard motors or outdrive units. Molded in two pieces of guaranteed unbreakable, high-strength plastic, each foil is designed to flex independently to absorb shock. The positive effects include greater stability, consistent planing at lower RPM, faster out-of-the hole performance, better gas mileage, steadier turns, higher top-end speeds and lower bow rise at all speeds. Doel-Fin is designed for use with small motors, big motors and inflatable dingies. Boats with small motors no longer porpoise with the bow-up when the throttle is applied, and they can achieve planing at lower engine speeds. Big motors benefit from less stern suction, faster planing times, and steadier turns. All of these features add up to increased fuel efficiency.

Fits all motors except Volvo Penta 280 and 290 outdrives.

Features:

Improves overall performance om boats with outboard motors or outdrive units

Constructed of unbreakable, high-strength plastic

Produces maximum lift while minimizing drag

Faster out-of-the-hole for happier water skiers

Save up to 30% on fuel consumption

Less bow rise for better visibility and increased safety

Simple 15 minute installation

Mounting hardware included

Click to Download Davis Doel-Fin Installation Instructions

Frequently Asked Questions

• What is the Davis Doel-Fin Boat Stabilizer Fin designed for? The Davis Doel-Fin Boat Stabilizer Fin is designed to improve overall performance on boats with outboard motors or outdrive units. It can provide greater stability, consistent planing at lower RPM, faster out-of-the-hole performance, steadier turns, higher top-end speeds, and lower bow rise.
• What motors and boats is the Davis Doel-Fin compatible with? The Davis Doel-Fin is designed for use with small and large motors and inflatable dinghies. It fits all motors except Volvo Penta 280 and 290 outdrives, according to the supplied product description.
• What is the Davis Doel-Fin made from? The Davis Doel-Fin is molded from two pieces of high-strength plastic. Each foil is designed to flex independently to absorb shock while producing lift and minimizing drag.
• How can the Davis Doel-Fin help improve boat performance? The Davis Doel-Fin is designed to provide maximum lift while minimizing drag. Its stated benefits include faster planing, steadier turns, lower bow rise, improved visibility, and increased fuel efficiency.
• How much fuel can the Davis Doel-Fin save? The product description states that the Davis Doel-Fin can save up to 30% on fuel consumption. Actual fuel savings can vary depending on the boat and operating conditions.
• What is required to install the Davis Doel-Fin? The Davis Doel-Fin is designed for a simple installation that takes approximately 15 minutes. Mounting hardware is included with the stabilizer fin.

Davis Queaz-Away Travelers' Wristbands

Queaz-Away is a non-drug aid for people on the go. The unpleasant effects of bumpy flights, choppy seas, winding roads, rocking trains, and spinning Ferris wheels can ruin a trip or outing. Queaz-Away wristbands exert gentle pressure on points on each wrist to minimize or eliminate the miserable effects of travel. Safe and easy to use. With no complicating buckles or adjustments, simply slip this wristband onto wrists, position, and enjoy your travel. The Queaz-Away Wristband can be worn repeatedly or continuously, even while sleeping to prevent the onset of discomfort.

Features:

Tough and Long Lasting

Washable Material

Non-Drug Aid

One Size Fits All

Includes Handy Carrying Case

Instructions:

• Wristband must be worn properly to be effective. Position the button as follows:

Starting at the first wrist crease (A), use your three middle fingers (B) to measure to a point on the underside of each wrist (C).

Position the button downward over this point, between the two central (flexor) tendons (D).

Davis Boat Fender Tender II Fender Hanger

Pack of 2

Use this Davis accessory to clip your fenders to rails, lifelines, side wing windows or cleats. Fender Tender II simplifies the handling and relocation of boat fenders. The "Railing Lock" firmly grasps rails from 7/8" to 1" (22 to 25 mm) diameter. New "Lifeline Lock" provides added safety. Use 1/4" to 3/8" (6 mm to 9 mm) diameter nylon line. Made of tough, sun-resistant plastic.

Awareness of the rudder angle is an important safety factor. This is especially true while moving in and out of your berth, drawing alongside another boat, picking up a skier, mooring, or any other "close call" situation. Davis' Rudder Position Indicator gives instant visual reference of rudder angle. The pointer swings a full thirty degrees with each revolution of the wheel. Mounts directly to your hub (approximately 2" (5 cm) in diameter) with a self-adhesive pad . Rugged, hermetically sealed, weatherproof, and sunproof housing ensures long life. No cables, adjustments, or electricity required; gravity power makes it simple and service-free. Suitable for boats with mechanical and single station hydraulic steering systems.

Davis Windex 15 Wind Vane

Davis Windex Wind Vanes deliver exceptional performance at the best value. This wind vane features a sapphire jewel suspension bearing, large fin-low inertia vane, and easy-to-read, fully adjustable tacking tab system. Reflector tape on the vane and tacking tabs makes the Windex 15 easy to see day and night. The Windex 15 has a 15" vane that is sturdy and offers years of use. These vanes have been wind tunnel tested to wind speeds of 80 knots.

Includes through-bolt or drill and tap mounting socket; 5/16" -18 stainless stud, washers and nut.

Key Features:

Perfect choice for all cruising and racing boats 15 feet and bigger

Sapphire jewel suspension bearing

Large fin-low inertia vane

Fully adjustable tacking tab system

Bird-proof spike extends another 10" above the vane to discourage birds from landing

Stands 1.75" tall and weighs just 3.6 ounces

Click to Download Davis Windex 15 Assembly Instructions

Frequently Asked Questions

• What is the Davis Windex 15 Wind Vane designed for? The Davis Windex 15 Wind Vane is designed for cruising and racing boats 15 feet and larger. It features a 15-inch vane with a large fin and low-inertia design for wind direction indication.
• What features help the Davis Windex 15 Wind Vane respond to wind? The Windex 15 uses a sapphire jewel suspension bearing and a large fin-low inertia vane. These features are designed to provide exceptional performance, while the fully adjustable tacking tab system makes the vane easy to read.
• Is the Davis Windex 15 Wind Vane visible at night? Yes. Reflector tape on the vane and tacking tabs helps make the Davis Windex 15 easy to see both day and night. The vane also includes a bird-proof spike that extends another 10 inches above the vane to discourage birds from landing.
• What wind speeds has the Davis Windex 15 Wind Vane been tested for? The Davis Windex 15 Wind Vane has been wind tunnel tested to wind speeds of 80 knots. The vane is designed for long-term use and features a sturdy 15-inch vane.
• What mounting hardware is included with the Davis Windex 15? The Davis Windex 15 includes a through-bolt or drill-and-tap mounting socket, along with a 5/16"-18 stainless steel stud, washers, and nut.
• How much does the Davis Windex 15 Wind Vane weigh? The Davis Windex 15 Wind Vane weighs 3.6 ounces and stands 1.75 inches tall. Its lightweight construction and 15-inch vane make it suitable for the cruising and racing boat applications specified by Davis.

Davis Windex 10.Sport Wind Vane

The Davis Windex 10.Sport Wind Vine offers exceptional performance at the best value. Features include a sapphire jewel suspension bearing, large fin-low inertia vane, and an easy-to-read, fully adjustable tracking system. Reflector tape on the vane and tracking tabs makes the Windex 10.Sport easy to see day or night. The Windex 10.Sport has a 10" sturdy vane that offers many years of use. They have been wind tunnel tested to wind speeds of 80 knots.

Includes glass reinforced poly-carbonate J-Base for side, top, or front of mast mounting on most dinghies, smaller boats, and sport boats.

Key Features:

Sapphire jewel suspension bearing

Fully adjustable tracking system

Stands 9.25" tall and weighs 1.2 ounces

Click to Download Davis Windex 10.Sport Instructions

Davis Fender Friend - Center Tube

A reliable way to keep your boat fenders in place. Nylon buckle for swift, secure attachment without complicated knots. FenderFriend stretches to avoid shock to your rails, stanchions, life lines or cleats.

Davis Fender Friend - Twin-Eye

**FENDER NOT INCLUDED**

FenderFriend is a fender whip, hanger and adjuster all in one.

FenderFriend features Shockles® built-in shock absorber to receive the impact generated by fenders rubbing against the hull or dock.

Allows anyone to quickly and easily set the fenders

Stretches when fenders get squeezed between the hull and dock or against another boat

Keeps stanchions, rails and cleats from bending under pull from fenders

FenderFriend provides a slight amount of stretch, which helps keep fenders in place while docking, or during surges and wakes when the boat is unattended. Tighten or loosen the strap to adjust the fender height.

Specifications:

UV resistant strap adjusts from 16 to 72" (0.4-1.8 m)

Sturdy, marine grade nylon buckle makes attaching fenders a snap

Includes:

Twin-Eye FenderFriend with black webbing and buckle. No more torn fender eyes!

Davis MiniShockle Black Bungee Cord

The Davis MiniShockle is a bungee cord on steroids! Take a MiniShockle with you when boating, camping, biking and more. Make sure that your load is held in place solidly, securely, and safely with the MiniShockle. UV-resistant nylon webbing is sewn over marine grade elastomer.

316 stainless steel wire gate snaps will hold up to 300 lbs. (136 kg.)

Includes:

Black MiniShockle

316 stainless steel wire gate snaps

Lengths Available:

12"

18"

24"

Davis Anchor Snubber

Features:

20" Long

Eases the tension on the anchor chain, rode or snubber line

Eliminates chain noise and shock loads to chain, anchor roller, windlass, cleats.

Davis DockShockle 12"

The Davis Instruments DockShockle is a simple and safe solution for reducing dangerous shock loads and minimizing stress on lines. Additionally, the DockShockle reduces chafe, resulting in longer lasting lines. You can use the DockShockle with all types of dock lines up to 3/4" in diameter. For braided or twisted lines, a pair of Mini-Line Grabbers are included for easy attachment. The Davis DockShockle is designed specifically for dock lines for smaller, lighter boats (up to 40 ft in length), but can also be used on towing lines to minimize shock and tie down lines to securely hold items in place.

Davis' DockShockle is made of 2500 lbs. test nylon webbing with an outer sheath of 3500 lbs. nylon webbing that's UV resistant to protect all internal parts. The DockShockle stretches to about 5" under 50lbs. of force. The maximum stretch is 7.5" until the Load Limiter engages. The patented Internal Stretch Limiter increase the return force in relation to the amount of stretch. You can easily adjust the amount of stretch by setting the desired amount of slack. Ideal working slack in line is 3 to 6 inches.

Specifications:

12" Long webbing

Ideal working slack is 3" - 6".

Included:

(1) 12" DockShockle

(2) 316 Stainless steel carabiners

(1) Pair of 7" Mini-Line Grabbers

Use the included Mini-Line Grabbers with the DockShockle to attach double-braided or twisted lines. Mini-Line Grabbers use a constrictor knot called a Prusik Hitch. They will not damage braided or twisted line.

Davis Round Sail Track Stop

These Davis Round Sail Track Stops hold your sail and its slides in place on the mast and boom. The large knurled wheels are released with ease.

Made of heavy-duty, black anodized aluminum and marine-grade nickel plated brass

Dimensions: .50" dia x .875"

Click to Download Davis Round Sail Track Stop Instructions

Davis Tiller Tamer

The Davis Tiller Tamer maintains cruising course with no hands, in any weather or wind condition. The Tiller-Tamer gives improved control and feel to the tiller handle, and the tension is smoothly adjustable from fully locked to fully free.

Features:

Maintains cruising course with no hands

Does not interfere with automatic steering systems

No loss of cockpit space

No need to lash the tiller when boat is moored or trailered

May be mounted on top or bottom of tiller

Click to Download Davis Tiller Tamer Installation Instructions

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 …

Davis Deluxe Rigging Knife

Made entirely of top quality stainless steel with dura-edged blades. Telo Rigging knives are tools that yachtsmen will be proud to own, yet are affordable. Deluxe Rigging Knife comes with a marlin spike, shackle key, and screwdriver.