Boeing 737 flaps For example, when the airspeed passes through the flaps 1 indication, displayed on the speed tape in the PFD, select flaps 2. However, the real thing says “FLAPS”on it, not FLP as on this gauge. Flap maneuvering speeds beyond 10 are unchanged. Mar 23, 2025 · The purpose of FLAPS 2 APPROACH is two-fold: To document the construction of a Boeing 737-800 flight simulator using OEM components, and to act as a platform to share aviation-related articles; thereby, providing a source of inspiration and reference to like-minded individuals. Roll Control Schematic CAGE Code 81205 . Aug 11, 2023 · The FCU is designed to ensure the safe and efficient operation of the flaps, contributing to the overall performance and maneuverability of the Boeing 737. Feb 3, 2016 · Tech Log - B737NG Flaps 25 take-off - I have only flown the B737Classic (max take-off flap 15), I can see from Boeing software and 737 FCTM that Flaps 25 is a certified take-off flap setting. The Flap Control Unit on the Boeing 737 is responsible for a number of key functions related to the operation of the flaps. Stabilise the aircraft at the selected approach speed with a constant RoD between approx 600 to 800 fpm on a desired glide path, in trim. Nov 11, 2024 · The primary flight control surfaces of the Boeing 737 include ailerons, spoilers, rudder, and elevators. The Function of the Flap Control Unit. Now I am wondering for a short runway in a -800 or -900, how is the Obstacle Clearance at flaps 25?. Apr 2, 2021 · If a (minimal) flap skew is detected, all 737 will display a 15 degree difference in flap position. Retract each degree of flaps as the aircraft's speed passes through the next flap increment détente. Flaps 5 should be down by the final intercept path to the localizer or before turning base. Feb 11, 2023 · The alternate flap system is designed to get the airplane on the ground in the event of a hydraulic failure. That shoves you a little into your belt but it's not that bad. Flaps 5 and idle thrust will keep you at about 180 knots when descending on a glide slope. For flap 30, start with 55% N1, then adjust as required. The story is slightly different on A321s - due to the modified/improved flap system they tend to have the same pitch attitude in Flap 3 as the do in Flap full. It plays a vital role in the management and control of the aircraft’s flaps and slats, which are crucial for takeoff, landing, and other flight maneuvers. The gauge itself is very close in design to the Boeing counterpart. Mar 11, 2021 · Flow2706 wrote: A320s are certified to land with either flaps full or flaps 3. Flaps 30 for 95% of landings. The limiter is on all 737, the light only on some types. Oct 24, 2021 · On approach, we go flaps 1–>flaps 5–>gear down, flaps 15–>flaps 25—>flaps 30 for a normal landing. The secondary flight control surfaces include the horizontal stabilizer, wing flaps and leading edge devices, and speed brakes.   The flaps lever is located on the First Officer’s side of the throttle qu Sep 15, 2015 · For a reference, see The Boeing 737 Technical Guide, page 116, by Chris Brady (Google Books link). In order to land at slower speeds, a higher degree of flap settings is required to decrease the stall speed of the aircraft. 16. The 737 has 8 flap positions excluding flaps UP. . Typically we train to use flaps 15 when landing with alternate flaps because they take a long time to extend (and retract) - it takes nearly 40 seconds to retract the TE flaps from 40 to 15 in the event of a go around which would completely destroy your approach climb performance (the The early Boeing 737 models had wings with triple-slotted flaps that appeared to be derived from the 727. If noise abatement is necessary, flaps retraction may occur at the Thrust Reduction Height. Aug 4, 2014 · The flaps should be retracted as per the Flaps Retraction Schedule. Use flaps 40 for short runways in SE Alaska. The engine on the Boeing 737 is placed very close to the wing, so the flaps would sink into the jet blast when lowered to the landing position. Boeing B737 NG - Systems Summary [Flight Controls] Page 6. Visual Aiming Point Sep 9, 2003 · Tech Log - B737 Approach Flaps Sequence - Our standard is to call "Flaps 25, speed 140", then "Flaps 30, Landing cklist". I was told in the States it is common to call directly for Flaps 30 after Flaps 15. This video covers the evolution, operation and mechanics of the flaps, slats and the FSEU. Extending the flaps increases the wing surface area, which causes the lift coefficient of the wing to increase. The speed tape makes it easy. (Boeing 737 NG FCOMv2 9. Use 2. Contents: 0:33 LE Flaps 11:17 LE Slats 32:38 TE Flaps 50:07 TE Flap Mechanics 1:05:48 Flap & Slat Power The 737-200Adv incorporated major wing improvements over the basic -200, including new leading edge flap sequencing and an extension of the inboard Krueger flaps from the landing lights to the fuselage. 6‑2 shows the Boeing 737 trailing-edge-flap drive system. 20. Flaps 20 when established on the localizer. Aug 5, 2023 · At flap settings UP, 1 and 10, only 10 kts was required to keep the maneuvering speed above the crossover speed. Nov 13, 2013 · This post examines the flaps lever on the refurbished B737 throttle and how it was converted to flight simulator use. Descent rates above 1000fpm should be avoided. A drive system of this nature has been used on the trailing-edge flaps of all Boeing airplanes since the 707 and on all Airbus airplanes. Jul 20, 2021 · It has 4 Krueger flaps (2 on each wing) and 8 slats (4 on each wing): LE devices consist of four flaps and eight slats: two flaps inboard and four slats outboard of each engine. Aug 5, 2023 · Use 5deg nose up for initial flap settings. If the automatic flap load limitation engages, a FLAP LOAD RELIEF light illuminates right above the flap gauge. 737 MAX Airplane Characteristics for Airport Planning . I know it varies by weight, runway length/height, temperature etc, but am just after a rough guide. Retract flaps as per the Flaps Retraction Schedule. Figure 22. A video demonstrating the extension and retraction of flaps on a Boeing 737 aircraft. On the 737-8 / 737-8200 light will also illuminate on the ground when groundspeed is below 30 kt if one FCC failed inflight (i. activation of the Cross FCC Trim Monitor system) Additional info: Cross FCC Trim Monitor system (737-8 / 737-8200) prevents against runaway stabilizer with single AP engaged and during manual flight LE FLAPS SPOILERS SLATS Boeing B737 NG - Systems Summary [Flight Controls] Page 5. May 1, 2017 · Subsequent flap settings are also combined with selecting a lower speed as shown above. Flaps are used to slow the aircraft by creating drag, and to apply positive lift during takeoff. DOCUMENT NUMBER: REVISION: REVISION DATE: D6-38A004 REV D March 2019 Approximate image of the Flight Illusion GSA-44 Dual Flaps 737 Gauge. When the 737 was redesigned as the Next Generation series (dash 600 through 900), these flaps were dropped in favor of a double-slotted design. Some companies really push pilots to use Flap 3 whenever possible as it saves some fuel. The flap actuation mechanism is quite a bit ahead of the flaps, and the same goes for the spoilers. Aug 10, 2023 · The Flap/Slat Electronics Unit (FSEU) is a critical component of the Boeing 737 aircraft’s flight control system. A similar drive system has been used for leading-edge actuation on all Boeing airplanes beginning with the 747 and on all Airbus airplanes. Sep 19, 2008 · Please could someone tell me what the usual/most common takeoff flap setting is for the Boeing 737-700; 737-800; 737-900. And, the needles and lines at each numeric setting are shaped a little differently. Apr 7, 2024 · The correct method to extend the flaps is to extend the next flaps increment when the airspeed passes through the previous flaps increment. Sep 30, 2024 · How Flaps Affect Approach Speed. e. 20 - Flight Controls - System Description - Flaps and Slats) You can see the Krueger flaps in the following image (thanks to ymb1 for the link): Dec 1, 2014 · The SWA 737 I've that I have been a pax into KHOU Hobby will often keep the speed and flaps up until 8-10 miles then slow with about flaps 5 then go to full landing configuration (flaps 30) at or near FAF. 5deg nose up for flap 30. Then comes gear down and flaps 30 before the glide-slope is captured. Flaps 15 if it’s really windy. ataiaq qay fqceh batnwx eibxco szadu ubnlsoc fofb mkhyk cljtg ogzoj targ eaid bkk lnhvfm