Is the 787 fly-by-wire?
The 787 Dreamliner family features an advanced fly-by-wire flight control system. Instead of a mechanical system of cables and pulleys that move the control surfaces on the wing and tail, fly-by-wire systems translate pilot inputs into electrical signals.
Which is bigger 787 or 747?
The most common variant of the 747 is the 747-400. The most common variant of the 787 is the 787-9….747 vs 787: Specs.
| Specifications | 747-400 | 787-9 |
|---|---|---|
| Length | 231 ft 10 in (70.66 m) | 206 ft 1 in (62.81 m) |
| Width | 239.5 in (6.08 m) | 18 ft 0 in (5.49 m) |
| Height | 63 ft (19.40 m) | 55 ft 10 in (17.02 m) |
| Seats | 416-660 | 290-420 |
Why are the flaps dropped on a 787?
That prevents the flaps from jamming into each other at the inside corner. The 787, on the other hand, has quite simple dropped hinged flaps.
Why do the flaps move aft on a 747?
This is part of a long standing trend since the mechanically complex 747 of simplifying flap mechanisms by using more sophisticated aerodynamic design. 2 So the flaps proper move a little bit aft as they extend, but I think the flaperon hinge isn’t dropped, so that it doesn’t extend aft and crunch into the flaps.
How does the flaperon work on an autopilot?
The autopilot will use the input from the aileron (rc channel 1, by default) AND the input from the flap channel (set by RCx_OPTION =208 for channel x in firmware versions 4.1 and later, or FLAP_IN_CH in perevious versions) and “mix” them to calculate how the flaperons on the plane should move.
How are the Fowler flaps on a 737 made?
The 737 has quite a complicated tracked mechanism to deploy its Fowler flaps. I think it’s designed to allow all elements of the flaps to move parallel to each other, as opposed to perpendicular to the trailing edge. That prevents the flaps from jamming into each other at the inside corner.