– Thank you, Bonnie Bees, for making this video possible: https://www.patreon.com/cgpgrey

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+ The Simple Secret of Runway Digits: https://youtu.be/qD6bPNZRRbQ
+ Social Security Numbers: https://www.youtube.com/watch?v=Erp8IAUouus

## Special thanks
+ William Raillant-Clark, ICAO Communications Officer: https://www.icao.int/secretariat/SecretaryGeneral/Pages/Communications.aspx
+ Tom Ratcliffe: https://www.yhmdesigns.ca/
+ Dave English: https://www.daveenglish.com/
+ Michael Culhane: http://www.acceleratedaviation.com/
+ Graeme Peppler: https://www.aviationpublishers.com/
+ Canadian Aviation History Society: https://www.cahs.com/
+ Ingenium – Canada’s Museums of Science and Innovation: https://ingeniumcanada.org/
+ Perry Flint, IATA Head of Corporate Communications, USA: https://www.iata.org/

## Executive Producers on Patreon
Bobby, Bob Kunz, Andrew Bereza, Rebecca Wortham, Nevin Spoljaric, Donal Botkin, BN-12, Andrea Di Biagio, George Lin, Katie Scheper, Jeromy Johnson, David Tyler, iulus, Xueqi, Richard Jenkins, Phil Gardner, Martin, Steven Grimm, Andrew, Colin Millions, Henry Ng, Tim Stumbaugh, Alex Simonides, Jason Lewandowski, David White, shannon cherng, سليما ن العقل, Nicholas Welna, rictic, Bogdan Toma, Brian Tillman, Chad Bramwell, jill hoffman, Nicolas Dedual, Nancy Flores, Meekay, Anthony Paolilli, Dennis Dimka, Daniel Kwak, Derek Bonner, Mikko, Orbit_Junkie, Nick Muggio, William Sasko, Darn, chrysilis, Drago175, Eliri Santana DeHendrick, Freddi Hørlyck, John Rogers, Rhys Parry, Veronica Peshterianu, Peter Lomax, John Lee, Maxime Zielony and Elizabeth Keathley

## Music & Sound
+ David Rees: http://www.davidreesmusic.com

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