Airbus yesterday boosted commitments for its planned A350 jet - its answer to Boeing's mid-sized 787 - and announced a new A380 superjumbo order.
Aircraft leasing giant GE Commercial Aviation Services (GECAS) said it planned to buy ten of the A350 planes valued at about $1.6 billion (£884 million).
India's Kingfisher Airlines has also agreed to buy five A350's, plus five A380 superjumbo jets and five smaller A330's in a combined deal worth around $ 3 billion (£1.65 billion).
Airbus now has firm orders for 149 double-decker A380's and 117 commitments for the A350, although that takes in 60 from Qatar Airways in a deal which has yet to be finalised.
Airbus has modified the initial design of the A350 to try to prevent Boeing running away with the market for mid-sized aircraft that fly long distances on flexible routes between specific points, rather than between huge regional hubs. Boeing has sold 266 of the 787 Dreamliners, which are due to enter service from 2008 compared with 2010 for the A350.
Airbus had previously placed its biggest bets for 21st century travel on the hubtohub model, designing its A380 superjumbo to cope with fastgrowing air traffic coupled with limited airport capacity and environmental restrictions on slots.
The 555-seat A380 has wrested dominance of the market for large planes over 400 seats away from Boeing, though Boeing may hit back with a stretch version of its venerable 747 jumbo jet.
However, Airbus officials have acknowledged in Paris they lost business by leaving the mid-sized market to Boeing, and that an earlier version of the A350 - a revamped version of the A330 - had been too timid a response to the 787 Dreamliner threat.
Kingfisher Airlines, an Indian budget carrier backed by the country's largest beer company, is the brainchild of flamboyant tycoon Vijay Mallya, whose UB Group makes Kingfisher beer, India's largest selling brand.
Indian demand has been a highlight of the air show amid forecasts of strong air traffic growth in the populous nation.
At the opposite end of the range from the mammoth A380, Airbus said Singapore's Tiger Airways had agreed to buy eight Airbus A320 aircraft, adding to the current fleet of four leased A320s.
The new A320s will be powered by IAE V2500 engines made by the International Aero Engines consortium, in which Derby-based Rolls-Royce Group is the leading shareholder.
Meanwhile, no-frills airline flyBe - one of the main operators at Birmingham International Airport - yesterday converted options on Bombardier Q400 turboprop airliners to firm orders. Delivery of the aircraft, coupled with the order for 20 Q400 aircraft announced in January, will increase the FlyBE Q400 fleet to 45 aircraft.