Building a Flight Planner with Claude AI in Under 4 Hours

So… You want an app to plan your flight. All you have got is a PC, VSCode and a Pro account to Claude. You have got a word document version of the pilot handbook for the airplane with all the data, and of course the internet, where all the weather and FAA data is located.

It is 8AM, and you want to leave at noon. What do you do? — WRITE AN APP of course!

That is what we did. Claude and I… In under four hours. And it worked. And I flight tested it in the actual airplane!

How much fuel will I burn? How long will it take given factors like wind, temperature, weight and balance… Will the altitude I select let me clear all the terrain adequately, or might I end up hitting a mountain? Here is what we came up with:

The Airplane

2020 C172S NAVIII — a Technically Advanced Aircraft. Just for fun, it is branded for my Civil Air Patrol squadron. It takes input from the user, including departure airport, destination, and waypoints.

Route Planning and Calculations

Fuel, time and distance is calculated, taking wind and other environmental factors into account:

Weather briefing data
Live weather data from aviationweather.gov

Live Data Integration

The app downloads FAA airport and Navigational Aid data via API, and separately weather from government sources via API.

N499CP Cessna 172S
N499CP — our CAP squadron’s Cessna 172S NAVIII
Route calculation results
Route calculation with fuel, time, and wind correction

Navigation Charts

Charts are downloaded and up to date:

VFR Sectional Chart
FAA VFR Sectional chart with route overlay

Terrain Clearance

Vertical profiles are analyzed for correct altitude selection and terrain clearance:

Vertical terrain profile
Vertical profile showing terrain clearance along the route

Airport Data

Airport data including runway diagrams, current weather and runway lengths are included!

Airport information
Airport details with FAA runway diagrams
Flight planning in action
The complete flight planning workflow

The Bottom Line

This is not a perfect app, and I do not let anyone use it but me. But it is a great example of what can be accomplished with a Pro Claude account and a couple of hours!

Tools: VSCode, Claude Plugin, and that is it!

Give it a try some time. Happy coding and fly safe!

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