The Boeing 707 and Boeing 747 used Krueger flaps on the wing leading edge. Several modern aircraft use Krueger flaps between the fuselage and closest engine, but use slats outboard of the closest engine.

May 13, 2022 · In order to protect from possible ingestion into the Flap recess areas on contaminated runways, the inboard and Mid-span le...more. Hello all, how do you do. The Boeing 747 has a fairly...

Mar 27, 2005 · Flaps 10 or Flaps 20 are the takeoff settings on the -400. The selection of flaps may be driven by company procedures, temp, runway length, obstacles. The list is endless. Landing flaps are 25 or 30.

Aug 15, 2023 · In Boeing aircraft, these are referenced to the degrees of deployment, with flaps being set to 1°, 5°, 10°, 30° or 40°. The flap settings on Airbus aircraft are simply referred to as 1, 2, 3 and full. The flap handles on some aircraft are even designed in the shape of a flap, giving an extra tactile clue to the pilot in busy workflows.

Oct 16, 2020 · The Boeing 747-400ERF has inboard Krueger flaps between the main fuselage and the inboard engines 3 and 2. Outboard of this, are two sets of variable camber leading edge flaps.

Why do most Boeing aircraft and their corresponding Airbus counterparts have different flaps and slats mechanisms (747 and A380, 737 and A320)? I'm assuming a lot of these mechanisms are patented. For example, the 747 is equipped with Krueger flaps while the A380 has the leading edge droop as slats. Example of Kreuger flaps on a 747

Apr 20, 2023 · When researching the different types of lifting devices found on airplane wings, you may come across Kreuger flaps. They are commonly found on large commercial jets, such as the Boeing 707 and 747. Like all lifting devices, Kreuger flaps generate lift during flight.

Oct 21, 2017 · Deploying flaps/slats primarily toward the root of the wing increases the camber and effective angle of attack at the root of the wing without affecting the camber/angle of attack at the tip.

The Boeing 747-400 flap system provides lift augmentation during phases of flight with relative low airspeeds such as takeoff, approach and landing. The complete flap system consists of leading edge flaps and trailing edge flaps.

The 747-400 incorporates major aerodynamic improvements over earlier 747 models, including the addition of winglets to reduce drag, new avionics, a new flight deck and the latest in-flight entertainment systems.