Concorde GBOAE Flight to Barbados Monday 17th November

BA Concorde GBOAE is due to leave Heathrow tomorrow to fly to Grantley Adams
Airport Barbados (see http://www.concordesst.com/latestnews.html ) where she
is due to remain on exhibition. Does anyone know what the departure time
from Heathrow is? I had seen a suggestion of approx 11.20 but can anyone
confirm this or update it?

Cheers,

Hugh