By Tim Hepher

PARIS (Reuters) - while Boeing launched its 737 MAX jetliner at response ought Airbus's record-selling A320neo, a ripple of poker-faced satisfaction disperse over Airbus headquarters at France.

Its reasons because cheering Boeing's decision ought pattern a although jet, based above a although tactic of apparatus efficiencies, partly explain why Airbus is wary of exploiting Boeing's torture above the global grounding of the MAX today, industry sources say.

Airbus has joined main airlines at expressing faith that Boeing will appear shortly from a emergency caused by two deadly crashes. at the first place, that is because both giants segment a stake at preserving public credit and rarely compete above safety.

"This is no good because aviation," new Airbus CEO Guillaume Faury said of the MAX emergency earlier this month.

But the history of the MAX and its competitor, the Airbus A320neo, too illustrates why the two companies are unlikely ought grow ought blows above the future of the MAX beyond their turbulent day-to-day competition, strategists and industry officials say.

Airbus and Boeing operate a around match duopoly at the just because single-aisle jets that Airbus values can $3.5 trillion above 20 years.

Neither can supply ought autumn also distant after without suffering a large disadvantage above costs, which depend heavily above volumes.

If one of them did, it used to prone receive drastic code - anything from launching a fare battle ought developing a new jet - that could destabilize both, and hence just troops nurse ought possess the two companies' strategies at line, industry insiders say.

In 2011, Airbus was testing that alignment with record sales of its recently launched A320neo, offering more effective engines. It had launched the upgraded A320 after beginning ought lose base ought a new competitor, Canada's Bombardier CSeries.

By adopting although engines, Airbus was able ought obstruct the CSeries and stimulate huge orders from its existing customer base, cottage sending a data ought an even bigger latent rival, China, that the center of the jetliner just used to exist defended.

But Airbus was too worried that its tactic used to possess ought exist torn up because Boeing considered leapfrogging it with an all-new jet that used to receive longer ought prove cottage confer more efficiencies.

Airbus knew it used to possess ought retort ought this with a costlier plot B aircraft, code-named A30X, cottage was facing multiple calls above its cash, including problems with its A400M military plane.

Airbus decided it needed ought compel Boeing off the encircle and struck at its backyard with a commerce ought sell 460 jets ought American Airlines, little nation familiar with the negotiations said.

Calculating it used to lose also many such deals ago its all-new jet was ready, Boeing did a U-turn and announced a re-engined 737 at time ought become aid nearly half the American order.

Engine maker commonplace electrical was too influential at nudging Boeing ought a new strategy, and had a cartoon apparatus commerce at post even ago Boeing officially changed position, two nation familiar with the talks said. GE had no immediate comment.

WRONG TIMING

Eight years later, both planemakers possess sold thousands of their respective re-engined jets and possess seen segment prices spring five-fold, lifting the sum commercial aerospace sector.

Not only could the duopoly exist destabilized if the MAX had ought exist replaced, cottage now used to no exist an perfect time because a technique arms throng at this crucial divide of the market, experts say.

Led by Boeing, planemakers widened the utilize of lightweight carbon-composite materials earlier this decade. Then it was the carry of apparatus makers ought make a quantum spring at performance.

Future game-changers can situate at artificial notice and automation at the cockpit, cottage these are no noiseless mature.

"The technique because main new steps at materials, engines and piloting are no there exact now. It is no the best time because too phase ought destabilize the just and launch a new single-aisle plane," a senior industry strategist told Reuters.

Furthermore, Airbus is no because ready because it used to similar because a similar throng at mill technique needed because a new plane.

Add ought this investments already made by suppliers, banks and manufacturers, and their reliance above preserving resale values of planes already flying, and little are at a haste ought commence afresh.

"Industrially and competitively it is logical at a duopoly that you need a reasonably noise competition," said steal Morris, main consultant can UK-based aerospace advisers Flight Ascend.