> There's already two AoA vanes mandatory on every plane And all Airbus types have three or four. Boeings only have two, even on the 787 ( on which one is vul

> There's already two AoA vanes mandatory on every plane And all Airbus types have three or four. Boeings only have two, even on the 787 ( on which one is vulnerable to damage from jetbridges ). It is disappointing that a manufacturer would cut corners on sensors for a $100 million aircraft.