Question: What is the difference between flaps, ailerons, and spoilers? When are they used and what do they do? -- submitted by reader Billy Gellepis, Los Angeles Answer: Flaps are movable panels ...

Vought Aircraft Industries has delivered the 1,000th shipset of empennages and graphite composite wing spoilers for the Boeing 757, and the 1,000th shipset of doors for the Boeing 737.