bruce brochure

2
The Bruce Anchor was invented in Scotland to secure floating oil rigs. In the oil industry, anchoring is a serious business: an oil rig must remain stationary over its drill hole regardless of wind or sea conditions to prevent both financial and environmental disasters. The superiority of the Bruce’s shape gives it tremendous efficiency, particularly on short scope over a variety of bottom conditions. Based upon field testing and engineering studies, Lloyds of London approved the replacement of a 45,000 pound conventional oil rig anchor with a 14,331 pound Bruce. The Bruce has earned an Award of Special Merit for Engineering Products Award from the Design Council. Constructed of a single piece of cast steel, each Bruce Anchor shown here has no moveable parts nor any flimsy components. This allows each to be covered by a lifetime warranty* against breakage. B RUCE A NCHORS ABSOLUTE ROLL STABILITY Every anchor has an upright orien- tation at which maximum holding power is achieved. Changes in wind or tide cause the angle of pull to change and to roll the anchor onto its side. A good anchor rests itself quickly to achieve upright orientation. The Bruce Anchor rolls upright, irrespective of initial drop attitude, within 2 shank lengths after engaging the sea bed and, at a rode-angle of up to 30˚ (ultra short scope), begins burial. FULL VEERING CAPABILITY The curved wingtips and point are configured so that pull on the rode automatically rolls the Bruce to its optimum upright orientation, whether for initial setting or resetting. This capability is important in minimizing dragging when wind or tide change. Instead of breaking out, the Bruce can remain imbedded as it veers. The Bruce banks in the sea bed and maintains high holding power, even through 360˚. SHORT-SCOPE HOLDING POWER The Bruce Anchor will bury in the sea bed at rode-angles up to 30˚ (at the anchor shackle) where most other anchors require 10˚-15˚. In crowded anchorages or in deep water, this distinction means more than a peace- ful night: it can become a yacht- or life-saver. The reason for the Bruce’s better performance with short scope is its design: the center of fluke area is located much closer to the forward end of the fluke than is possible in other anchor designs. AMONG ROCKS AND CORAL The Bruce works well in bottom conditions where many anchors are ill-suited. Among the worst conditions are rocks and coral.** Here, the Bruce Anchor’s three strong points let this anchor grab as easily as the Fisherman type. And, because there are no flimsy or moving parts, there’s less risk of bending or jam- ming. In fact, the one-piece construction in heat-treated cast steel gives the Bruce greater strength than any other patented anchor of similar weight and supports its unique warranty* coverage. EASY TO RECOVER AND STOW Despite the superior burying and holding power, the Bruce is easily broken out for hauling. The short, broad single fluke gives rise to small shear moments in the sea bed when the anchor is rotated upward during hauling. The Bruce is very compact. Because of its inherent roll stability, it requires no stock and thus is narrower. It has no moving parts to secure, and stows easily and conveniently in a bow roller system. THE CRUISERS CHOICE Again and again, experienced cruisers write (to us and in magazine articles) about the success they’ve enjoyed anchor- ing with a Bruce Anchor. *A copy of the written limited warranty is available upon request. **The makers urge mariners, whenever pos- sible, to avoid anchoring in living coral to avoid damaging this important ecosystem. ®

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Page 1: Bruce Brochure

The Bruce Anchor was invented in Scotland to secure floating oil rigs. In the oil industry, anchoring is a serious business: an oil rig must remain stationary over its drill hole regardless of wind or sea conditions toprevent both financial and environmental disasters.

The superiority of the Bruce’s shape gives it tremendous efficiency, particularly on short scope overa variety of bottom conditions.

Based upon field testing and engineering studies, Lloyds of London approvedthe replacement of a 45,000 pound conventional oil rig anchor with a 14,331pound Bruce. The Bruce has earned an Award of Special Merit for EngineeringProducts Award from the Design Council.

Constructed of a single piece of cast steel, each Bruce Anchor shown here has nomoveable parts nor any flimsy components. This allows each to be covered by alifetime warranty* against breakage.

BRUCE ANCHORS

ABSOLUTE ROLL STABILITYEvery anchor has an upright orien-

tation at which maximum holdingpower is achieved. Changes in windor tide cause the angle of pull tochange and to roll the anchor onto itsside. A good anchor rests itself quickly to achieve upright orientation.

The Bruce Anchor rolls upright,irrespective of initial drop attitude,within 2 shank lengths after engagingthe sea bed and, at a rode-angle ofup to 30˚ (ultra short scope), beginsburial.

FULL VEERING CAPABILITYThe curved wingtips and point are

configured so that pull on the rodeautomatically rolls the Bruce to itsoptimum upright orientation, whetherfor initial setting or resetting.

This capability is important inminimizing dragging when wind ortide change. Instead of breaking out,the Bruce can remain imbedded as itveers. The Bruce banks in the sea bedand maintains high holding power,even through 360˚.

SHORT-SCOPEHOLDING POWER

The Bruce Anchor will bury in thesea bed at rode-angles up to 30˚ (atthe anchor shackle) where most otheranchors require 10˚-15˚. In crowdedanchorages or in deep water, this distinction means more than a peace-ful night: it can become a yacht- orlife-saver.

The reason for the Bruce’s better performance with short scope is itsdesign: the center of fluke area islocated much closer to the forwardend of the fluke than is possible inother anchor designs.

AMONG ROCKS AND CORALThe Bruce works well in bottom

conditions where many anchorsare ill-suited. Among the worstconditions are rocks and coral.**Here, the Bruce Anchor’s threestrong points let this anchor grabas easily as the Fisherman type.

And, because there are noflimsy or moving parts, there’sless risk of bending or jam-ming. In fact, the one-piece

construction in heat-treated cast steelgives the Bruce greater strength thanany other patented anchor of similarweight and supports its unique warranty* coverage.

EASY TO RECOVER AND STOWDespite the superior burying and

holding power, the Bruce is easilybroken out for hauling. The short,broad single fluke gives rise to smallshear moments in the sea bed whenthe anchor is rotated upward duringhauling.

The Bruce is very compact. Becauseof its inherent roll stability, it requiresno stock and thus is narrower. It has

no moving parts to secure, andstows easily and conveniently in abow roller system.

THE CRUISERS CHOICEAgain and again, experienced

cruisers write (to us and inmagazine articles) about thesuccess they’ve enjoyed anchor-ing with a Bruce Anchor.

*A copy of the written limited warranty isavailable upon request.

**The makers urgemariners, whenever pos-sible, to avoid anchoring

in living coral to avoiddamaging this

important ecosystem.

®

Page 2: Bruce Brochure

WHAT USERS SAY:“As a witness in the Hugo Hurricane rescueteam, I personally confirmed the fact that theonly boats which held their relative positionswere anchored by Bruces.”

K. CarloCabo Rijo, PR

“It doesn’t ‘plow’ – it digs in and you staywhere you intended. Sets quickly and stayseven when changing directions. Holds in more bottoms than other anchors. Oh – niceto sleep again!”

Dr. Ross FerlandWebster, TX

“It sets the first time and never failed us onour 21/2 year 6,000 mile cruise from SanFrancisco to Florida.”

Waymon OlipitMarathon, FL

“Over and over again, it held when myDanforth let go. A proven test and reliableproduct.”

M. GoldstoneBirmingham, AL

“Everyone else drags and WE DON’T! Weluv Bruce.”

Don & Sally JohnsonPensacola, Fl

BOW ROLLERSImtra offers a range of bow rollers to fit most Bruce Anchors. All Imtra anchor

rollers are made of heavy-duty stainless steel and feature durable, free-runningDelrin wheels. Our rollers are electro-polished to remove any surfaceimpurities, providing an attractive, smooth, bright finish that will notcorrode and requires no maintenance. Imtra rollers come in a wide rangeof sizes and shapes to fit most boats.

In addition to rollers for the Bruce Anchor, Imtra offers models to suit mostother anchor styles as well. Please contact us to get more information on our rollersby calling 508-995-7000 or by visiting our website at www.imtra.com.

Imtra Corporation, 30 Samuel Barnet Boulevard, New Bedford, MA 02745 USATel: (508) 995-7000 Fax: (508) 998-5359 Toll-free fax: (800) 989-2580 E-mail: [email protected] Website: www.imtra.com

BRUCElb. kg. A B C D E

Dimensions

SPECIFICATIONSSUGGESTED SIZES

For Boat Length(Storm conditions)*

ChainDiameter

ChainLength

RodeDiameter

Minimum:1 foot ofchain foreach footof yachtlength.

Larger anchors should be set with anchor chain only.

* Storm conditions assume winds up to Force 9 (47 knots) and some protection from the sea, fair holding ground and proper anchoring technique. Yachts with unusual windage or which may anchor in more exposed locations should carry heavier anchors and matching ground tackle.

British Standard B.S. 3100-A6 heat-treated cast steel.Bruce Anchor is a trademark of Bruce Int’l. Ltd.

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110150250

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.5 .5

9’ - 15’16’ - 23’24’ - 28’29’ - 32’33’ - 39’40’ - 46’47’ - 57’58’ - 72’73’ - 90’91’ - 106’

107’ - 125’126’ - 154’

7.0”9.3”

10.6”11.4”12.9”14.3”16.0”18.9”21.8”24.1”27.5”33.8”

14.3”18.5”21.3”23.0”25.8”28.1”32.1”38.1”42.9”48.4”53.4”63.7”

9.7”12.4”14.2”15.3”17.6”18.5”21.3”25.3”28.0”31.9”35.3”42.0”

0.31”0.41”0.41”0.46”0.48”0.66”0.76”0.90”1.00”1.18”1.46”1.69”

4.7”7.0”7.5”8.0”8.7”9.5”

11.0”13.4”14.8”17.3”19.5”22.8”

3/16”3/16”1/4”

5/16”3/8”3/8”1/2”5/8”3/4”7/8”1”

11/4”

1/4”3/8”3/8”1/2”5/8”5/8”3/4”7/8”