 Several other aircraft were noted as late as 1980 but these aircraft have disappeared – four having been used in the Disney Picture "Last Flight of Noah's Ark", in which two of the airframes were destroyed during production.Additional aircraft have been discovered at both post-war crash sites and near World War II Pacific airfields.There is a search for the first B-29 to bomb Japan, "Dauntless Dotty" which crashed into the Pacific Ocean on take-off during her return flight to the United States.