Professional Aviation Flight Planning & Performance Analysis

SkyWalk is a flight planning tool designed for general aviation pilots. It provides real-time runway performance calculations, weight & balance analysis, METAR integration, and aerodrome information management to help pilots make informed go/no-go decisions.

Access the application: https://skywalk-aviation.github.io/app/

Read the documentation: https://skywalk-aviation.github.io/docs/

• POH-Based Calculations: Automatic runway length computation using Pilot Operating Handbook data
• Multi-Factor Corrections: Accounts for temperature, altitude, weight, wind, runway surface, slope, and safety margins
• Dual Distance Modes: Calculates both threshold and 50ft obstacle clearance distances
• Real-Time Analysis: Instant performance updates based on current conditions

• Live METAR Data: Automatic retrieval from nearby stations
• TAF Support: Future weather trend analysis
• Cloud Ceiling Visualization: Interactive cloud layer charts with circuit/CTR altitude overlays
• Wind Envelope Analysis: Visual assessment of crosswind and headwind limits across variable wind conditions

• Interactive Charts: Visual center of gravity plotting against aircraft envelope
• Multi-Point Validation: Supports departure, arrival, and custom weight scenarios
• Real-Time Calculations: Automatic updates as fuel burn and passenger weights change
• Compliance Checking: Instant feedback on envelope limits

• Comprehensive Database: Detailed information for departure and arrival aerodromes
• Runway Visualization: SVG-based runway layout diagrams
• ATC Frequencies: Tower, ground, approach, radio, and information frequencies
• Custom Annotations: User-specific notes and images for each aerodrome
• Route Planning: Entry/exit points, altitudes, and circuit patterns

• Runway SVG Overlays: Color-coded runway diagrams based on surface type
• Performance Plots: Linear regression models fitted to POH data
• Weather Visualization: Cloud coverage and wind component charts
• Interactive Maps: Folium-based aerodrome location mapping

• Pre-Flight Planning: Comprehensive flight briefing with all essential aerodrome and weather data
• Go/No-Go Decisions: Data-driven assessment of flight feasibility based on performance limits
• Weight & Balance Compliance: Ensure aircraft loading meets certification requirements
• Runway Performance: Verify adequate runway length for current conditions
• Weather Assessment: Quick METAR/TAF analysis with visual cloud ceiling information
• Training & Education: Teaching runway performance calculations and weather interpretation

Runway performance calculations including:

• POH data fitting and regression modeling
• Wind correction (headwind/tailwind/crosswind)
• Surface and condition corrections (dry/wet, hard/soft)
• Slope adjustments
• Safety margin application
• SVG generation for runway layouts
• Surface-based color coding
• Runway geometry normalization and centering
• Interactive runway overview diagrams

Weight & balance calculations:

• Moment and CG computation
• Envelope boundary checking
• Chart.js integration for visual plotting
• Multi-scenario support (departure/arrival/settings)

Aerodrome information management:

• METAR/TAF retrieval and parsing
• ATC frequency management
• Runway condition tracking
• Route and circuit altitude planning
• Cloud ceiling and wind envelope visualization

1. POH Correction

   • Input: Temperature, altitude (field elevation), aircraft weight
   • Method: Linear regression model fitted to POH table data
   • Output: Base distance requirement

2. Wind Correction

   • Input: Wind direction, speed, runway heading
   • Calculation: Headwind/tailwind component
   • Factor: Variable based on wind strength (from POH data)

3. Runway Surface Correction

   • Factors: Surface type (hard/soft/other) × condition (dry/wet)
   • Multipliers defined in aircraft performance settings

4. Slope Correction

   • Input: Runway slope percentage
   • Calculation: Additive correction per percent slope

5. Safety Margin

   • Final multiplier for operational safety buffer
   • Typically 1.3-1.5× depending on operation type

CG = (Σ(weight × arm)) / Σ(weight)

Components:
- Empty weight × empty arm
- Pilot weight × pilot arm
- Copilot weight × copilot arm
- Rear passengers × rear arm(s)
- Baggage × baggage arm
- Fuel × fuel arm

Users must configure:

• POH Tables: Takeoff/landing performance data (minimum 3 data points)
• Weight Limits: Empty weight, max takeoff weight, useful load
• Arms & Moments: CG reference datum and station arms
• Performance Factors: Surface corrections, slope factors, safety margins
• Envelope Points: Weight & balance envelope boundary coordinates

Per-aerodrome settings include:

• Preferred parking position
• Default ATC frequencies
• Runway slope overrides
• Custom entry/exit routes
• Circuit altitude preferences
• Additional notes and images

Comprehensive documentation is available at: https://skywalk-aviation.github.io/docs/

Documentation covers:

• Getting started guide
• Aircraft configuration
• Flight planning workflow
• Performance calculations explained
• Weight & balance procedures
• METAR interpretation
• Troubleshooting

• User Data: Stored securely in Firestore with user-specific access
• Session Isolation: Flight plan data isolated per user session
• No Sharing: Flight plans and custom settings remain private
• HTTPS: All communications encrypted

FOR EDUCATIONAL PURPOSES ONLY

• This software is NOT certified for operational flight planning
• Always verify all calculations with the official aircraft POH
• METAR/TAF data should always be manually verified
• Runway and aerodrome data should be verified with current NOTAM and charts
• The developer assumes NO LIABILITY for use of this software

REGULATORY COMPLIANCE: Pilots must comply with all applicable aviation regulations and always maintain appropriate safety margins.

• METAR Coverage: Limited to stations with publicly available data
• Runway Database: May not include all smaller aerodromes
• VRB Winds: Variable wind (VRB) prevents accurate wind corrections
• POH Fitting: Requires a minimum of 3 data points for accurate modelling
• Surface Types: Generic classifications may not match specific runway conditions

Copyright (C) 2024-2025, E.Taskesen - All Rights Reserved

Unauthorised copying, modification, or distribution of this software, via any medium, is strictly prohibited.

Safe Flying! ✈️