Volcanic ash cloud and Private / VFR flying (merged)

[Deeday]

Report from the Do 228 research plane: "A lot of muck up there"

Informal report from the engineer on board the Do 228 research aircraft, just after landing at Cranfield (from the BBC):

"Heavy gritty stuff that seems to be sitting up around 8000 ft."
"Sulphurous chemicals sat somewhere around about 6500 ft [...] and at lower level, a lot of very fine stuff".