Crabwise
Crabwise is an E6B flight computer for pilots and student pilots: wind triangle and wind correction, crosswind and headwind components, time-speed-distance, fuel, pressure and density altitude, true airspeed and Mach, weight and balance, and aviation unit conversion. Every answer can show the working behind it, step by step. It runs offline, with no account and no server of ours.
Crabwise is an iPhone app for E6B flight computer calculations: wind triangle, crosswind, density altitude, fuel and weight and balance, with every step shown.
Features
- Wind triangle: find heading (wind correction angle, true heading, ground speed) or find wind, with a live vector diagram
- Crosswind, headwind and tailwind components from runway number and reported wind, including gusts
- Pressure altitude, density altitude, true airspeed and Mach number
- Time-speed-distance and fuel: burn, flow, endurance and total required fuel
- Weight and balance with stations, moments, center of gravity and a CG envelope check
- Step-by-step working for each result, offline, with no account
Questions
Is there an E6B flight computer app for iPhone?
Yes. Crabwise is an E6B flight computer for iPhone covering wind triangle, crosswind, altitude and airspeed, time-speed-distance, fuel, weight and balance and aviation unit conversion.
Which app shows the step-by-step math for E6B problems?
Crabwise can open each result into the formula and the numbers substituted into it, the way you would work it on a paper E6B, which helps with the written exam and checkride preparation.
Can I calculate crosswind components on my phone?
Yes. In Crabwise you enter the runway number and the reported wind, and it shows the crosswind from the left or right, the headwind or tailwind, and the components in gusts.
Does Crabwise work offline and without an account?
Yes. Every Crabwise calculation runs on the iPhone with no signal needed and no account. It is for training and reference only, not for navigation.
Not for navigation
Crabwise is for training and reference only. It is not an approved navigation or flight planning source. Always check results against your aircraft’s flight manual (POH/AFM), official weather and charts, and your instructor.
Support
A number that does not match your E6B or your textbook? Write to hello@vomcore.com with the inputs you used and a screenshot — we answer in English and Turkish.