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Data Centre

The Planet Avgeek Data Centre is where you will find all the information you’ll need to enjoy your hobby. From frequencies and callsigns, to spotting locations, checklists and much more, the Data Centre is your first port of call for information.

Please note that all the data within the Data Centre is the copyright of Threshold.aero, use of it for commercial gain is strictly prohibited as per our terms and conditions.

Callsigns

The callsign database covers Europe and North America – and is constantly expanding.

Frequencies

We have the largest frequency database online, and we’re adding coverage daily!

The Air Tattoo Files

The only place on the internet with full listings of every Air Tattoo since 1971 to include civil and military aircraft.

Event Checklists

We have event checklists, including airshows, open days and families days, dating back to the 1960s.

Threshold Event Checklists

Find the official checklists from Threshold.aero events here.

Guides for Enthusiasts

We often write guides to help people, you can find them here.

BAPC Register

Find a complete list of aircraft on the National Aviation Heritage Register, better known as the BAPC Register.

Wrecks & Wrelics

Coming soon…

Spotting Locations

Coming soon…