XYZ Marine Products
As essential front line SAFETY DEVICES, boat anchors should be tested
to their limits under a variety of conditions. Users need absolute
confidence in the anchors they are using - life and vessel are depen –
dant on them. Our anchoring tests, influenced by the auto industry
break/crash protocol, reflect anchoring in real conditions: normal and
extreme. They have been conducted on various anchoring sea bot –
toms: soft/hard sand, mud and clay with some weeds, and small
As our designs evolve, each model is analyzed with state-of-the art
CAD/software to maximize performance under the most demanding
conditions. Field-testing confirms the CAD simulation predictions.
XYZ Extreme Anchor meets or exceeds the PASS Criteria of the four
sets of test conditions as shown below.
Anchor Setting and Breakout Test
Test was started with an anchor on the bottom at 5:1 scope. From
idle speed, power is slowly increased to high RPM to enable anchor
to set. RPM was increased to 2000 and
held continuously (force 9,000lbs) for
30 seconds. Once the anchor was set,
the same exercise was done at 90˚, 135˚ and 170˚ direction.
To pass the Test #1, the boat anchor must HOLD and not drag
or break out from any direction. During the tests, the anchor must
rotate below the bottom surface, without pulling out and HOLD at
the high RPM – force 9,000lbs/4 ton. After rotation is completed,
the boat must be stopped in less then 3’/1M.
Anchor Breakout Test – Sudden Impact Test
When the anchor is set, the boat will relocate above the anchor. With
a slack rode (length for 5:1 and 3:1 scope), the boat is given full
throttle (maximum RPM) so that the anchor would be hit by the
sudden and enormous force of the boat’s mass/speed, simulating
hurricane force wind conditions. The sudden impact test is done at 0˚
(the previously set direction), and at 90˚, 135˚ and 170˚ to the original
To pass the Test #2, the anchor must HOLD and not drag or break out
from 0˚ up to 135˚. The anchor must rotate quickly below the bottom
surface, without pulling out. The vessel must be stopped in less then
3’/1M. (30,000lbs/400HP/12mph). Under maximum RPM and sudden
impact force, on 0˚ orientation, the rode should break (standard rec-
ommended nylon sized for the anchor weight – for 25 lbs/12kg anchor
– 5/8”/16mm nylon rope breaking strength 11,000lbs). The anchor
should not be damaged in any way.
Panic Test - Anchor Setting Under Motion - Boat Speed
3 mph @ 5:1 and 3:1 Scope
This test simulates a panic situation where the vessel is
in motion due to high wind. At 3 MPH anchor is dropped in
the sand bottom at 5:1 and 3:1 scope.
To pass test #3, the anchor must set and HOLD a 5:1 scope. Once
set, it must pass tests #1, 2 & 3.
360˚ Maximum Load Test-5:1 and 3:1 Scope.
Once the anchor is set, vessel makes full 360˚ circle around the
anchor, under constant load (maximum RPM), at 5:1, 3:1 and 2:1
To pass test #4, the anchor must HOLD at lease 5:1 and 3:1 scope.
XYZ boat anchor
in action. Video of our
boat anchor during its
To pass the Test #2, the anchor must HOLD and not drag or break out from 0˚ up to 135˚. The anchor must rotate below the bottom surface, without pulling out. The vessel* must be stopped in less then 3’/1M. Under maximum RPM* and sudden impact force, on 0˚ orientation, the rode should break (standard recommended nylon sized for the anchor weight – for 16 lbs/7kg anchor – 5/8”/16mm nylon rope breaking strength 11,000lbs). The anchor should not be damaged in any way.
*Testing vessel - 15Ton/400HP/12mph
The setting and holding ability of ANY anchor is not only a function of anchor size, weight and design; it is also a function of the seabed surface and its substance. Some seabed surfaces offer poor holding to ANY anchor. *Anchor weight/boat size suggestions are based on good anchoring bottoms such as deep consistent sand, mud and clay.
Performance data for XYZ anchors are also based on using appropriate size rode for the anchor weight and boat length. XYZ Marine Products does not grant any warranty on holding power or performance.
Testing to failure was done using various 11 lbs/5kg – 32lbs/15kg XYZ anchors. In the USA, tests were done on deep consistent and/or mixed sand, at numerous locations in Long Island Sound, NY. We used a 45’/15 ton, 400HP fishing boat. The boat is owned by Captain Jim McGinness, who witnessed all the testing. Similar tests have been done on the Croatian Adriatic with boats up to 1000 HP. Tests were done with high RPM achieving sudden impact to the anchor that was properly set. Several times we broke 3/4“/20mm (rated at 13,000 lbs/6 ton) three- strand twisted Nylon rope. We also broke 3/8”/10mm stainless steel cable wire and 5/16”/8mm chain. Of all of the rhode materials, chain was the hardest to break! After repeatedly testing to rhode failure, the XYZ anchor was carefully inspected. IT SUFFERED NO DAMAGE OR DEFORMATION!