"wolfgang.90 Seems like even the CORS servers would need to be fused with an IMU because the quickest sampling time they've got is 1 second. A lot can happen to a fast moving drone in 1000ms ;)"
"Just for future reference, the California Real Time Network (CRTN) offers public single-port access to their statewide RTK reference stations for free. You just have to ask for an account from the director =)"