HaulRig Studio

HaulRig Studio is an offline-first mechanical-advantage workbench for SAR instructors, industrial rope-access apprentices, climbing-gym rescue teams, and wilderness first-responder courses. Build haul systems on a live schematic—not after the fact in a log. Set drop length, load mass, target advantage (2:1 through 9:1), and progress-capture style, then place directional pulleys, traveling pulleys, prusiks, and ratchets on the rope path. Theoretical MA, friction-adjusted MA, minimum rope length, and anchor shared-angle warnings update instantly so students see safer numbers before rope leaves the bag. KEY CAPABILITIES • Live haul workbench with theoretical vs bend-friction-aware advantage • Interactive rope-path schematic—force arrows refresh as the layout changes • Rope-length calculator that folds drop, haul travel, change-of-direction tails, and spare into one cut list • Anchor shared-angle tool with color-coded resultant load when two anchors split the system • Seeded presets: classic 3:1 Z-rig, 5:1, 9:1 piggyback, and crevasse self-rescue sketches • Knot and soft-goods atlas with working-load guidance for prusiks, autoblocks, and sewn runners (reference only) • Scenario cards for vertical litter raise, crevasse haul, and industrial pick-off with suggested MA ranges • Saved system library with notes, tags, and team name—persisted fully offline • MA recognition quiz mode for course check-offs (diagram → name the advantage) • Share plain-text briefings (rope cut list, MA, anchor angles) via the system share sheet—no account required WHY TEAMS USE IT Classroom time is short. HaulRig Studio turns abstract MA ratios into clear force diagrams and realistic rope lengths so rescue squads leave training with correct cut lists and safer anchor geometry. Compare Z-rigs, C-rigs, and piggyback hauls side by side, brief the field team from one export, and keep every system on-device without a network. Built for instruction and pre-mission planning. Always verify systems on real gear with qualified oversight; the atlas and calculators are decision aids, not substitutes for certified training or manufacturer specs.