All white. She flew east over Levington a few minutes earlier - I was puzzled by her disappearing shape beyond neighbouring trees (from below and behind has a quite sqare body and after all, I probably last saw one over 60 years ago). Didn't get my binoculars out but when she returned up the Orwell and I got a side view I had instant recognition. Remarkably quiet for two big radials.
Made my day.