After an hour 's stopover spent Expend_resource refuelling Self_motion the aircraft , the DC-4 departed Departing ; at 04:45 , during the initial climb , the aircraft stalled , lost Earnings_and_losses height and crashed Catastrophe tail first into the sea .

the 1952 bermuda air crash occurred Presence on 6 december 1952 , when a douglas dc-4 , registered unk and operated by cubana de UNK , flying Motion from madrid to havana , crashed Catastrophe into the atlantic ocean following a refuelling stop at kindley air force base in bermuda .