For comparison, this is how FMS (flight management system) updates are done on contemporary aircraft: WiFi from iPhone, USB or SD-Card. https://aerospace.honey

For comparison, this is how FMS (flight management system) updates are done on contemporary aircraft: WiFi from iPhone, USB or SD-Card. https://aerospace.honeywell.com/en/products/cockpit-systems/dl-950-data-loader https://aerospace.honeywell.com/en/products/cockpit-systems/... From the datasheet/pdf: Low-cost USB media can be used on your personal computer to download the latest navigation database from the Internet.