# RTC Winching Load Calculator — Estimate winching forces

> Estimate winching forces (iPhone/iPad app by Jon Curley.)

- Source: https://appshunter.io/ios/app/rtc-winching-load-calculator/id6758267772 (this page in markdown: same URL + `.md`)
- Developer: [Jon Curley](https://appshunter.io/developer/1871876640)
- Category: Utilities, Reference
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.6 · 23 MB
- Languages: English
- Released: 2026-02-06
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/rtc-winching-load-calculator/id6758267772/reviews.md

## What is RTC Winching Load Calculator?

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.


## Version history (last 4 releases)

### 1.5.3 — 2026-04-02

This update introduces advanced stabilisation modelling:
	•	Centre of Gravity (CG) projection visualisation
	•	Support boundary and tipping detection
	•	Tipping direction indicator
	•	Tie-in force modelling
	•	Real-world load sharing
	•	Improved safety recommendations

### 1.5.2 — 2026-03-04

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.

### 1.5 — 2026-02-22

Additional feature, strut multiplier calculators, strop guides, stability simulator

### 1.03 — 2026-02-06

No release notes.

## Related topics

[rtc winching load calculator](https://appshunter.io/ios/topics/rtc-winching-load-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-14.*