Engineering
Our competitorspublish PDFs.We publish tools.
Everything here runs in the browser, needs no login, and shows its working. If a number looks wrong to you, you can see exactly how it was derived — and tell us.
Interactive
Rope Selector
State the working load, design factor, diameter limit and environment. Every construction is scored against it and the reasoning is shown — including why the excluded ones were excluded.
Interactive
Working Load Calculator
Design factor, termination efficiency, bend radius and sling angle combined into one number, with each multiplier listed so the arithmetic can be checked by hand.
Reference
Construction Atlas
Six constructions compared on elongation, splice efficiency, torque behaviour and what each one is genuinely best at.
Reference
Fibre Reference
HMPE, aramid, LCP, polyester, nylon and polypropylene — tenacity, density, temperature and UV, plus the specific way each one fails you.