|Quoting PNQIAD (Reply 2):|
I read that recently (at least in the afternoon - trans-Atlantic rush hour) they have been changing over to RWY 1C and 19C. I am not sure if they are also using 1C/19C earlier in the day which may explain what you are seeing. I live on the other side under 1R/1C approach near IAD and haven't seen heavies in the morning last few days.
|Quoting Panova98 (Reply 5):|
SA207 is scheduled to arrive at IAD at 600am, and typically is a little early. I think it's the only real heavy that early, and I can usually hear it over my house down-leg between 530 and 6 when using the northwest or north runways.