European regional airline 'Flybe' says it has signed a contract to buy 35 Embraer 175 aircraft from the Brazilian manufacturer in a $1.3 billion deal. Flybe said Tuesday at the Farnborough International Airshow that it also signed up for options on a total of 105 more planes. The value of the options was not announced, the Associated Press reported. The first aircraft will be delivered in September 2011 with the last of the 35 planes due in March 2017.