(wikimedia.org) Airbus A350.
There aren't many wide-bodies out there. Whether it's Douglas, Boeing, or Ilyushin, they all have the high-speed aileron interrupting the flaps. Whereas Airbus uses uninterrupted flaps in all their fly-by-wire aircraft with the two ailerons outboard.
After Boeing has adopted fly-by-wire, it is still sticking with its flaps design in the 777 and 787. I'm aware Boeing now uses flaperons, but as the image below shows, its deflection is not all the way to avoid the jet blast, but how does Airbus get away with it?
For the uninterrupted, here are some reasons I can think of but can't link:
- Smaller deflection for takeoff and landing is better for noise and fuel, but may incur a weight penalty because the flaps are in the jet blast and need to be built stronger.
- A smaller overall wing is better for weight reduction, but worse for wing loading.
(wikimedia.org) Boeing 777.
Why did Airbus choose this design (apart from its A300/A310)? They must have a good reason. Equally for Boeing for not using them with its FBW aircraft. Unless it doesn't matter, or a patent is involved.
- Why do similar Airbus and Boeing aircraft use different flap and slat mechanisms? Asks about the number of slots, slat types, etc.
- When Boeing designed the 737NG, what factors influenced the change in the flap system? Asks about the 737 Original, here the engine was the split: