https://shop.jetvision.de/
would seem to cover all the physical requirements, of course CASA is a different story.,
https://www.flightradar24.com/business/data-services
- Tailored feeds configured by fleet, airport, route or geographic region
- In-flight position updates up to every 5 seconds
- Available in JSON format, sent via secure websocket connection
- Enhanced flight information available on request
Contact usHistoric data files
- Historic flight tracking data specified by fleet, airport, route, time period or geographical region
- Flight-track positions recorded up to every 5 seconds
- Available in both JSON and CSV format, sent via secure download link
should handle the data handling needs with a proffessional membersip....but would it be good enough for.....