Boeing CEO Dennis Muilenburg said on Monday the possible fallout from the US-China trade dispute is a concern for the Chicago-based manufacturer.
Tinseth refused to be drawn into commenting on U.S. trade policy, saying: "We are going to focus on what we can control".
"We are tremendously excited to be back at Farnborough this year, showcasing six of the most technologically advanced aircraft in the sky".
The U.S. industrial conglomerate needs to do further work on the proposals, especially since Boeing has yet to decide whether to recruit an exclusive turbine provider or involve two competing suppliers, GE Aviation chief David Joyce said Monday at the Farnborough air show.
As the Prime Minister opened Farnborough International Airshow in Hampshire, she stressed the importance of a "business friendly customs model". "People feel great when you launch, but shareholders don't feel great until you're successful".
Also a purchase agreement signing ceremony between Boeing and Qatar Airways, finalising the airline's order for five 777 Freighters, also took place. The deal, if confirmed, would be worth USD$8.85 billion at A320neo list prices.
President Donald Trump startled the corporate world earlier this month with the threat that he may ultimately impose tariffs on more than $500 billion worth of Chinese goods.
The deal expands DHL's existing 777 fleet, becoming the first company to utilise the model to complete long-haul time critical services in 2009.
Boeing's forecasts underscored the sector's reliance on emerging markets in general and China in particular, making the US planemaker especially vulnerable should trade tensions between Washington and Beijing escalate into a full trade war.
In separate interviews, they said nothing good will come from the tension that's been gathering momentum over recent weeks.
The aircraft, to eventually replace the Typhoon fighter jet, would be developed and built by Britain's BAE Systems, Rolls-Royce and Italy's Leonardo, the source said.
The A220 programme got an important vote of confidence from Air Lease Corp founder Steven Udvar-Hazy, who told Bloomberg that the A220 is "a more attractive prospect" under Airbus. Going into Farnborough, the plane maker was trying to iron out the last hurdles to a 60-jet order from David Neeleman, founder of JetBlue Airways, and a group of investors who are trying to start a new United States low-priced airline. "This has changed the whole landscape in terms of its credibility".