Kite Force - Pull Calculator

Calculate the exact pull force your kite generates under real-world conditions. Essential for line selection, safety planning, and understanding your kite's performance limits before you're holding the line.

🪁 KITE FORCE PRO — Professional Kite Pull Force Calculator

⚡ SMART FORCE CALCULATION

• Pull force in Newtons, Pounds and Kilograms

• Line strength recommendations with a 3x safety factor, rounded up to the next 10 lb

• Worst-case analysis against your kite's rated wind ceiling

• Air density computed from live temperature and pressure — not a sea-level assumption

• Force table across 10, 15, 20, 25 and 30 mph so you know what's coming as wind builds

• Adjustable angle of attack for tuning past the shape defaults

• Pull level indicators: Light / Moderate / Strong / EXTREME

🗂️ YOUR KITE LIBRARY

• 13 kite types: Delta, Box, Parafoil, Diamond, Sled, Rokkaku, Dual-Line, Quad-Line,

Bols, Bouncing Buddy, Banner, Line Laundry and a generic Other

• Each with a tuned drag coefficient and the right measurement fields for its geometry

• Photo capture for visual reference

• Full spec tracking: manufacturer, wind rating, cost, last flown date

🌤️ LIVE WEATHER INTEGRATION

• Auto-fetch current conditions via GPS

• Wind speed, direction, temperature and pressure

• Interactive Windy.com wind map

• 5-day forecast with hourly detail

• Manual override when needed

🧺 LINE LAUNDRY CALCULATOR

• Add windsocks, flags and banners to your force calculations

• Small / Medium / Large size options, or pull from a saved kite

• Cumulative additional pull force estimation

📋 SESSION LOGGING

Start a session and the app records condition snapshots over time with location, so you

can compare what a flight actually felt like against what the numbers predicted.

📅 KITE EVENTS

A curated list of upcoming kite festivals and events, sorted by distance from you.

📐 METRIC & IMPERIAL

• Instant unit switching: mph ↔ m/s, °F ↔ °C, inHg ↔ hPa

• All calculations update in real-time

• Preferences saved automatically

💾 BACKUP & SHARING

• Export/import your entire kite collection

• ZIP format with photos preserved

• Share individual kite configs

🎯 WHO IS THIS FOR?

Sport kite flyers, single-line enthusiasts, kite aerial photographers (KAP), festival

organizers — anyone who wants to know what they're getting into before the wind picks up.

🔬 THE SCIENCE

Force is computed with the standard aerodynamic equation:

F = ½ × ρ × V² × Cd × A

Air density (ρ) comes from the ideal gas law using live temperature and pressure. Drag

coefficients (Cd) are tuned per kite type — Quad-Line (1.6), Parafoil (1.5), Delta (1.2),

Box (0.9) — and adjusted for angle of attack.

⚠️ SAFETY

• Warnings when wind is too low or dangerously high for your kite

• Line strength recommendations based on a 3x safety factor

• Worst-case scenario modeling at rated max wind speeds

🌐 WORKS OFFLINE

All calculations run locally on your device. Live weather, maps and events need a

connection.

💾 FREE VS PRO

Free includes the full calculator, live weather, forecasts, wind map, session logging,

events and up to 5 saved kites.

A one-time Pro purchase adds:

• Unlimited saved kites

• Google Drive backup

• No backup reminders

No subscriptions. No ads. Your gear shouldn't expire.

🆘 SUPPORT

Email: [email protected]

Website: https://prodirt-llc.github.io/kiteforcepro/

Built by kite flyers, for kite flyers. Made in Virginia, USA.