Ascent Series
Ascent NFPA-G
NFPA 1983 General Use. Built to be trusted, not admired.
- Max MBS
- 12,600 lb
- Diameters
- 7/16" – 9/16"
Schematic — Braided core inside a braided cover
24-strand polyester double braid built for arborists. The cover holds a hitch predictably and will not milk down after a season of SRT.
When to specify this
Purpose-built for climbing, not a repurposed marine line. Cover density and firmness are tuned to friction-hitch behaviour.
Standard colours
Signal Red/Black · Cobalt/White · High-Vis Yellow/Black
Certification
Full spec sheet and batch test certificate supplied with every order, and on request beforehand.
Typical applications
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.
| Diameter | Min. break strength (lb) | Weight (lb/100 ft) |
|---|---|---|
| 7/16" | 6,800 | 6.4 |
| 1/2" | 8,200 | 8.1 |
| 9/16" | 9,800 | 9.9 |
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.
Measured to 30% of MBS. Beyond that the curve is extrapolated from the fibre, and drawn dashed to say so.
Load vs. elongation
Canopy-24 — 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.
| Load (% of MBS) | Elongation (%) | Source |
|---|---|---|
| 0 | 0 | Origin |
| 10 | 1.4 | Measured |
| 20 | 2.7 | Measured |
| 30 | 4.2 | Measured |
| 100 (break) | 12 | Extrapolated from Polyester elongation at break |
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 — 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.
| Rank | Product | Strength-to-weight |
|---|---|---|
| 1 | Apex-12 | 6,615 |
| 2 | Apex-12 MAX | 6,290 |
| 3 | Vector-PC | 3,793 |
| 4 | Thermion-AR | 3,136 |
| 5 | Datum-LCP | 3,125 |
| 6 | Meridian Hybrid | 2,663 |
| 7 | Ascent NFPA-G | 1,322 |
| 8 | Meridian-DB | 1,143 |
| 9 | Canopy-24 (this rope) | 1,063 |
| 10 | Harbour-3 | 1,040 |
| 11 | Surge-8 | 1,000 |
| 12 | Drift-PP | 809 |