RTC Winching Load Calculator

Estimate winching forces

$4.99 · Designed for iPad

Professional vehicle recovery toolkit. Calculate RTC winching effort, line pull, anchor loads, and rollover risk. Includes rigging planner, sling guide and safety checks. Winching Load Calculator is a professional-grade calculation and planning tool designed for Fire & Rescue, recovery operators, and specialist rescue teams. Built using real operational formulas, including the official RTC Resistance Card, this app helps you quickly calculate winching loads, mechanical advantage, stabilisation requirements, and safety margins — directly on scene. Designed to support safer, faster, and more informed decision-making during vehicle recovery and rescue incidents. Core Features WINCHING CALCULATOR • Official RTC Resistance Card calculations • Rolling, damage, and gradient resistance • Accurate effort prediction (EP) • Efficiency and safety factor adjustments RIGGING PLANNER • Mechanical advantage planning • Automatic recommended rigging • Anchor load calculations • Pulley and sling safety checks • Visual rigging diagrams VEHICLE STABILISATION • Strut load calculations • Stabilisation safety status • Automatic stabilisation planning • Capacity and utilisation feedback ROLLOVER AND TIPPING CALCULATOR • Live vehicle tipping visualisation • Centre of gravity indication • Stability warnings • Effort required for recovery LIFTING AND AIRBAG CALCULATOR • Lever principle calculations • Lifting force prediction • Mechanical advantage support STROPS AND SLINGS REFERENCE • Colour-coded sling ratings • Hitch configuration effects • Integrated safety checks DESIGNED FOR REAL OPERATIONS This app is built specifically for: • Fire & Rescue Services • Vehicle Recovery Operators • Rescue Technicians • Heavy Rescue Teams • Incident Commanders • Training and instruction Every calculation is designed to support real-world decision-making, not theory. Improve safety. Improve planning. Improve confidence. IMPORTANT NOTICE This app is a decision-support tool only. Always follow your organisation’s procedures, training, and safety guidance. CONTINUOUS DEVELOPMENT This app is actively maintained and continuously refined based on operational use and feedback. New tools, improvements, and expanded capabilities are added regularly.

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What’s New Version 1.5.2 – Official Release This major release introduces powerful new calculation tools and visual planning features designed specifically for Fire & Rescue, recovery, and specialist rescue operations. New features: • Official RTC Resistance Card winching calculations for accurate effort prediction • Live vehicle stability and tipping visual to support safer stabilisation decisions • Intelligent rigging planner with automatic mechanical advantage recommendations • Dedicated strops and slings reference with integrated safety checks • Improved rigging diagrams and load visualisation • Enhanced recovery summaries and planning feedback Improvements: • Faster performance across all calculators • Improved reliability and accuracy • Interface refinements for operational use • Multiple bug fixes and stability improvements Ongoing Development This app is actively used, developed, and continuously refined for real-world rescue and recovery scenarios. Regular updates will introduce new tools, improved accuracy, and expanded operational capability.

Version 1.5.2

The developer, Jon Curley, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Jon Curley
    • Size
      • 23.5 MB
    • Category
      • Utilities
    • Compatibility
      Requires iOS 17.6 or later.
      • iPhone
        Requires iOS 17.6 or later.
      • iPad
        Requires iPadOS 17.6 or later.
      • Mac
        Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.3 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © Jon Curley
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.