Skip to content
Ropebraiders
Datum Series

Datum-LCP

Zero creep. When the length must be the same in ten years.
Parallel CoreLCP Splice 85%

Schematic — Unidirectional core in a braided cover

Parallel-core Vectran® LCP in a UV-opaque braided jacket. It does not creep, and it shrugs off cyclic loading that fatigues other fibres.

When to specify this

Specified for measurement stability, not strength: tensioned arrays, permanent guys, instrumentation tethers, anything that cannot be re-tensioned.

Engineering notes

  • Effectively zero creep under sustained load
  • Outstanding cyclic-load fatigue life
  • UV-opaque jacket is structural to service life, not cosmetic
  • Supplied to length with a measured, certified as-built dimension

At a glance

Max break strength
102,000 lb
Diameter range
1/4" – 1"
Construction
Parallel Core
Fibre
LCP
Elongation @ 30% MBS
0.9%
Splice efficiency
85%
Torque balanced
Yes

Standard colours

Black jacket · Steel Grey jacket

Certification

  • ISO 9001 batch traceability
  • Certified as-built length
Request a quoteCalculate working load

Full spec sheet and batch test certificate supplied with every order, and on request beforehand.

Typical applications

Specifications

Minimum break strength is the value we publish and test to — not an average, and not a working load. Divide by your design factor before putting a number on a drawing.

Datum-LCP specifications by nominal diameter
DiameterMin. break strength (lb)Weight (lb/100 ft)
1/4"6,8002.4
3/8"15,5005
1/2"27,5008.8
5/8"42,50013.6
3/4"60,00019.4
1"102,00033.5

Working load shown at a 5:1 design factor for illustration only. Use the load calculator to apply the design factor, sling angle and termination efficiency your application actually requires.

Weights are nominal and vary ±5% with finish and coating. Elongation measured on new rope after bedding-in; expect higher values on the first cycle. Splice efficiency assumes a correctly made splice with the specified bury length.

Load against elongation

Measured to 30% of MBS. Beyond that the curve is extrapolated from the fibre, and drawn dashed to say so.

Load vs. elongation

Datum-LCP — stretch under load

Elongation as a percentage of original length, plotted against load as a percentage of minimum break strength. Drag, or focus the plot and use the arrow keys, to read any point off the curve.

Datum-LCP load–elongation curve02040608010001234ELONGATION (%)LOAD (% OF MBS)MEASUREDEXTRAPOLATED5:1 WORKING LOAD
Elongation
0.9 %
Load
30 % MBS
Stretch / 100 ft
10.8 in
Source
Measured
  • Solid — measured at 10, 20 and 30% of minimum break strength, interpolated with a monotone cubic so the fit cannot overshoot.
  • Dashed — extrapolated to 3.3% using published LCP elongation at break. Inferred, not measured. Do not design to it.
  • Shaded — working load at a 5:1 design factor, i.e. up to 20% of MBS.
Datum-LCP load against elongation. Load is a percentage of minimum break strength; elongation is a percentage of original length.
Load (% of MBS)Elongation (%)Source
00Origin
100.35Measured
200.62Measured
300.9Measured
100 (break)3.3Extrapolated from LCP elongation at break

Strength to weight

Break strength per pound of rope, across the catalogue. This is the number that decides what a two-person crew can rig.

Strength-to-weight

12 ropes, ranked highest first

Strength-to-weight by product01 Apex-126,61502 Apex-12 MAX6,29003 Vector-PC3,79304 Thermion-AR3,13605 Datum-LCP THIS ROPE3,12506 Meridian Hybrid2,66307 Ascent NFPA-G1,32208 Meridian-DB1,14309 Canopy-241,06310 Harbour-31,04011 Surge-81,00012 Drift-PP809

STRENGTH-TO-WEIGHT — LB PER LB/100 FT

Break strength divided by weight per 100 ft, best size in each range. Numerically this is breaking length in hundreds of feet — the length of rope whose own weight equals its break strength.

Strength-to-weight by product, highest first, in lb per lb/100 ft.
RankProductStrength-to-weight
1Apex-126,615
2Apex-12 MAX6,290
3Vector-PC3,793
4Thermion-AR3,136
5Datum-LCP (this rope)3,125
6Meridian Hybrid2,663
7Ascent NFPA-G1,322
8Meridian-DB1,143
9Canopy-241,063
10Harbour-31,040
11Surge-81,000
12Drift-PP809

Also specified for these applications

Apex Series

Apex-12

Size-for-size stronger than steel wire rope, and it floats.

HMPE12-Strand Single Braid
Max MBS
268,000 lb
Diameters
1/4" – 1-1/2"

Apex Series

Apex-12 MAX

SK99 HMPE for permanent moorings where creep is the enemy.

HMPE12-Strand Single Braid
Max MBS
1,020,000 lb
Diameters
3/4" – 3"

Vector Series

Vector-PC

Lowest elongation we make. A rope that behaves like a strut.

HMPEParallel Core
Max MBS
112,000 lb
Diameters
1/4" – 1"