So, now that I'm stuck with it...

I bought an unused gamepad from a secondhand shop (brand new, but no returns) after seeing that it had a USB connector, but not realising that it was for a PS3.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=9&t=27510