Vref ice 737. The time now is 09:54.

Vref ice 737. Nov 5, 2011 · The reason given why Vref Ice is applied to the NG and not to the Classics is that they have different wings. 737 Quick Reference Handbook for flight crew operations. Maintain VREF 15 + 5 knots or VREF ICE + 5 knots minimum on final approach to assure sufficient maneuver margin and speed for go-around. Southwest Airlines and other carriers must wait for the MAX 7 certification before receiving their orders. Post 5027258 - The Professional Pilots Rumour Network (PPRuNe) is an aviation website dedicated to airline pilots and those who are considering a career as a commercial pilot. Статья не является пособием полета на настоящем самолете. 39 is considerably large Maintain VREF 15 + 5 knots or VREF ICE + 5 knots until reaching flap retraction altitude. It explains that separate switches control the heating of the forward and side windows. Basically it makes sure you have the right speed for the weight you’re at, so that you achieve the right angle of attack…yada yada yada. The Shark Tooth! “On takeoff the white bug is automatically set to V2 +15 and on approach to Vref +20. In both, when modifying VREF in accordance with a QRH procedure, we entered the QRH directed flap setting and VREF onto the APPROACH REF page. Icing conditions were encountered during the flight and the landing temperature is below 10o C. Hi, Yesterday evening while I was flying a LIRN-LIMC flight I decided to worked out my Vref by using EFB (until now I had used EFB just for takeoff calculation) to better understand the system etc, before this I had worked out my Vref by inserting in the "Approach page" of my FMC the forecasted fuel at the approach as Apr 6, 2023 · Engine anti-ice does not trigger the SMYD speed adjustment, wing anti-ice does. Study the procedures for engine and APU malfunctions. For the 737 NG and when not using VREF ICE, what is the maximum wind additive to use is it Vref 15 + 20 ? Feb 3, 2016 · Spectators Balcony (Spotters Corner) - One Engine Inoperative Landing - For the 737 NG and when not using VREF ICE, what is the maximum wind additive to use is it Vref 15 + 20 ? I know for VREF ICE it says in the QRH - When VREF ICE is needed, the wind additive should not exceed 10 knots. Nov 2, 2002 · You can assume 120kg/hr for 737-300 APU under full load on the ground. Silly question about command speed drung final approach. Dec 9, 2021 · For this example, we’ll use runway 36, and our VREF is 155 knots for our weight. The time now is 09:54. It also covers how non Does it mean, you set the command speed to Vref+5 kts if you plan to land with autothrottle disconnected, and if you have gust correction you set the command speed to Vref+gust correction because you will touchdown with this speed, but if you don't have gust correction only headwind correction, you may set command speed at Vref+5 kts and fly the approach speed which is higher than Vreft+5 kts Jan 11, 2013 · 2- Vref ice : if WAI was used during flight, is only due because the computed Stall warning logic adjusts stick shaker and minimum manoeuvre speed bars on the airspeed indicator on the NG. This is a guide to understanding non-normal checklists in the 737 Flight Crew Operations Manual. WING ANTI ICE Bleed air from the Pneumatic Manifold supplies air for 3 inboard leading edge slats on both wings in any position, both in-flight and on the ground. I can understand why you would want to use Vref Ice generally, but Hi Folks, I understand that with selection of wing anti-ice (and TAI) that the min maneuvre speed tape and the stick shaker logic are adjusted to account for icing (ie they´re raised). Must be tested before using the window heat system. May 19, 2012 · The generic 737 NG QRH I have (2009 version), has, in the PI section, Landing Distance adjustments for speed above Vref eg Autobrake 2: 540ft per 10KIAS above Vref. Is there a definate relationship between all the speeds? If so, how did they design Apr 7, 2024 · In this article I will discuss the techniques used to land the 737-800 aircraft. I always thought that Vref + wind speed additive is the speed, which I should try to maintain untill touchdown. 1. The Vref Ice policy was because when Boeing was doing initial flight testing, they put artificial ice on the wings. ) The wing anti-ice system provides protection for the three inboard leading edge slats by using bleed air. In situations where the logic is set for icing conditions you set VREF ICE to maintain the proper stall margins during the approach. Is this May 8, 2012 · Tech Log - B737-800 Ref Speeds - Hi, Can anyone explain the relationship between Vspeeds on the 73-800. But on the CL, Boeing says in App and Landing :If ice formation are observed on the airplane surfaces, VREF ADD 10kts this ensure maneuvering capability. This document provides information about the window heat and anti-ice systems on a Boeing 737-800 aircraft. Flap 30, pressurisation problem, so standard approach. If you used wing anti-ice (which is uncommon irl), you can increase your VREF additive to provide more maneuver margin. I've flown Boeings (737 & 777) for two different operators. Apr 28, 2014 · Having the engine anti-ice on, or having had the wing anti-ice on at any time during the flights sets the stick shaker logic for icing conditions, causing it to activate at a lower angle-of-attack. The WAI valve naturally closes at T/O thrust application and WAI switch clicks off at rotation. 21 - Added a note clarifying that when VREF ICE is required, the wind correction should not exceed 10 knots. 3*Vso, where the Vso is the stall in landing configuration. VAPP = VREF + 15 (as 15 is the maximum you can add) Headwind component = 4 knots Study the 737 Flight Crew Operations Manual, specifically Section 9, focusing on Non-Normal Checklists. Just as a side note, wing anti-ice is usually not needed, unless flying for prolonged times in icing conditions, while the engine anti-ice is used whenever TAT is below 10 and there is visible moisture. Study the table of contents to understand hydraulic pump issues, system failures, and standby procedures. pdf), Text File (. e B hydraulic failure, 1 inop landing etc. This means up to 40° AOB, i. Mar 1, 2005 · Questions - What is VAPP and VLS? - Just wondering what these mean, they are both found on the Approach page of Airbus a/c. Sep 20, 2022 · Even when you fly VREF ICE on one engine inoperative landings, your maximum wind additive is 5kts (so you’d be flying Vref15+10+5). Includes engine fire, cabin altitude, and depressurization. Includes quick action and lights indices for emergency procedures and system malfunctions. Flap speeds in the NG are updated via the FMC unlike the classic where its a standard speed. Aug 5, 2023 · Technical website for Boeing 737 pilots and engineers. Post 5027462 - The Professional Pilots Rumour Network (PPRuNe) is an aviation website dedicated to airline pilots and those who are considering a career as a commercial pilot. pdf page 60 to set up approach Flaps 30 VREF. For example landing at 68000 kg, Vref =138 kts (QRH 2. Mar 7, 2007 · Having extra speed above Vref should be done for a reason: Residual ice, winds, turbulence, other. Oct 11, 2021 · VREFは「失速速度の1. Example: 54,000kgs - Flap 15: Every time you attempt to slow to VREF15 +5, the low speed buffet margin infringes on the selected speed and "Airspeed Low" is announced followed by stick shacker. Study the Non-Normal Checklists, focusing on procedures related to hydraulic pump issues, system failures, and manual reversion scenarios. So in my new type (Hawker 800) I maintain Vref May 8, 2012 · Vspeeds, Vref and flap schedules are based on weight of the aircraft. I guess VAPP is equivalent to VREF on Boeing a/c? Thanks BAe 146 May 3, 2010 · What is a 777-200 Vref speed at a typical landing weight? I am a flight instructor and flight sim nerd and am gonna bother you guys with my question because I cannot find it anywhere on the internet I would love to know what the Vref30 approach speed is for a 777-200 and/or 200 ER at an average landing weight. It describes the different windows on the flight deck, the power sources that provide heat to the windows, and the location of the window heat control panel. In the approach checklist, check altimeters. This speed is very important since is the minimum speed of your final approach. For "Vref ice" as you call it, use flap 30 as it has a higher max speed limit. 1) Aircraft Direction: Wind Direction: Wind Speed: Gust Speed: Nice! The #1 way to set up a good landing is to fly over the threshold at VREF speed. I am not sure that that is correct. The absolute maximum is VREF+20 for when maximum additive is used (Represented by the white bug during approach on the -800). As per our Boeing 737-800 Flight Crew Operations Manual: Which specific conditions indicate the necessity of adding 10 knots to VREF 15, resulting in VREF ICE, during a 'Jammed or Restricted Flight Controls' non-normal procedure? Engine anti-ice usage during landing, wing anti-ice usage anytime during flight, or icing conditions encountered during flight with landing temperature above 10° C. Nov 23, 2024 · Set Vref 15 or Vref Ice If any of the following conditions apply, set Vref Ice=Vref15+10kt: Engine anti-ice will be used Wing anti-ice has been used during flight Icing conditions were encountered during the flight and landing temperature below 10C Use normal landing procedure except: Ground proximity flap inhibit switch _____________flap inhibit Jan 8, 2024 · I've tried just about every which way and I cannot simulate a successful single engine approach and landing in the 737-700. Jun 26, 2013 · Email ThisBlogThis!Share to XShare to FacebookShare to PinterestLabels: 737, ENGINE, PITOT, WINDOW HEAT You can assume 120kg/hr for 737-300 APU under full load on the ground. Franklin Duncan For Flaps 15 landings, Vref Ice must be set due to what? And under what 3 conditions? Stick Shaker Logic -Engine Anti-Ice for Landing -If Wing Anti-Ice was used anytime during flight -Icing conditions encountered in flight, and surface temperature less than 10C Jul 21, 2024 · Boeing's commercial airplane chief said the planemaker has settled on the design to address an engine anti-ice system that has significantly delayed certification of the 737 MAX 7 and suggested a Quick action index for Boeing 737 emergency procedures. Jun 10, 2024 · I may be wrong, but the clue when to start bleeding off the HW component additive may be found in Volume One Supplementary Procedures Adverse Weather, sub heading Approach and Landing," which discusses ice formation observed on airplane surfaces with the advice to add ten knots to the normal Vref. 23倍以上の速度であること」という制限があり、この失速速度が飛行重量によって変化する為です。 このVREFですが、フライトコンピューターが計算致しますが算出方法があります！ ！ Adjusts FMC displayed VREF automatically when WING ANTI-ICE switch is ON. Limit bank angle to 15° when airspeed is less than VREF 15 + 15 knots or VREF ICE + 5 knots or the minimum maneuver speed, whichever is lower. Sep 12, 2013 · V REF is a speed: That gives you at least a 23 percent margin over V SR0, reference stall speed in the landing configuration. Oct 19, 2023 · 襟翼手柄位置在UP位，完成后缘襟翼收上着陆，Vref40+40 不要试图用备用襟翼电门来操纵后缘襟翼，因为没有不对称保护。 Vref ICE =Vref15+10节。 风修正最大15节，如需要Vref ICE时，风修正值不应超过5节。 着陆构型襟翼手柄小于30时，近地襟翼抑制电门 FLAP INHIBIT 。 Feb 22, 2019 · I am stumped as to how to set vref speeds for landing? I searched videos on Zibo's fmc but apparently missed how to get the vref speeds. Vref ICE is the reference landing speed in icing conditions. 26 is 10 kts. The LE flaps do not have anti-ice. The wing anti-ice system does not include the leading edge flaps or the outboard leading edge slats. Landing Runway 29 Wind 27010G2 Apr 4, 2018 · 那么（新）Vref=Vref15+10=158；（新）Vref=Vref40+30=134+30 然后对这个158或者再进行风修正，最大20（或者襟翼限制速度-5），最小5。 ****这其中有个特例，就是使用结冰下的Vref15时，因为结冰条件下的Vref15=Vref15+10， 这时候进近速度的修正最大为Vref15+10+10。 OFFSET command found in the INIT/REF INDEX of the FMC/CDU 737 Quick Reference Handbook with Quick Action Index for emergency procedures. com fKCl5yIyZf5bE3dJpqhH6DKMNO4aDCZQ04EnIqbMf1 Jul 25, 2018 · Is it modeled in xplane that anti-ice (wing) and engine anti ice uses a significiantly more fuel? If so, when is the best time to leave wing and engine anti ice on? Should it be all the time at cruise when temprature is less than 0 or only when flying through clouds. PMDG737-700 (MSFS2020) Tutorial Approach Flaps and VREF Checking for a typo / missing step? Note : The same steps are in P3D4 PMDG737 NGXu Flight Manuals PMDG-737NGXu-Tutorial-1. Полный курс по полету на Boeing 737 NG Добро пожаловать на Boeing 737-800 В этой статье мы выполним полет из Гамбурга (EDDH) в Амстердам (EHAM) на самолете 737-800. Most manufacturers provide corrected distances for failures / abnormal configuration, icing, and may also provide correction for thrust reverse, brake setting, and speed excess. This is the speed required as the landing runway threshold is crossed at a height of 50 feet in landing configuration if the calculated aircraft performance is to be achieved. Not sure why this would be different. The Electronic Flight Bag (EFB) allows users to Microsoft Flight Simulator 2020 Get it here Download required This content covers the hydraulics systems and procedures for the 737 Flight Crew Operations Manual. B737NG Vref Ice Can anyone clarify whether Vref ice is applicable to a flap 15 landing in the following context: The aircraft has initially taken off in icing conditions on the ground and, as per Vol 1 SP. The target fly speed on approach is the magenta arrow on the speed scale, which represents Vapp. (Plus we also have spool up time, etc. 16 used both wing and engine anti ice. 0. All times are GMT. Aug 10, 2018 · Wind correction, what does it do and when does it make sense to fill it in? Note: After the last FCTM update the maximum wind correction is Vref+15 kt or landing flap placard speed -5 kt whichever is lower. Also that the FMC computed Vref is not adjusted and therefore you have to add 10 kts to Vref 15 in order to get Vref Ice. Maintain VREF 15 + 5 or VREF ICE + 5 minimum on final approach to assure adequate maneuver margin and speed for go-around. 3 times the stall speed, so the margins are "huge. JAMMED STABILIZER NNC. z6T7Te6kf. Non-Normal Checklists, when we have problems with high lift devices and : - engine anti-ice will be used during landing - wing anti-ice has been used any time during the flight or - icing condiions were encountered during the flight and the landing temperature is below 10 degrees Celsius require to use VREF ICE = VREF 15 + 10. Why is this? I have been told that we should bleed these 5 knots off over the threshold because your landing distance is based on touching down at VREF? Is this the same for all Boeings/other aircraft makes, I have heard other aircraft like the BAE 146 approach @ VREF and downtown at less than VREF There are generally three sets of icing shapes considered in certifying an aircraft - the fully developed ice shapes (which exist only on unprotected parts of the airframe), the "failure" ice shapes, representing the worst case ice accumulation on the protected parts of the airframe following a failure, and the "encounter" or "delayed turn on Aug 5, 2023 · Now, V2 for flaps 1 is vref for flaps 15, i. " Not really. It also discusses window heat indications For example, all 737 one engine out landings are made with Flap 15. . These speeds are calculated based on the aircraft’s weight and configuration and are utilized during specific phases of flight. Also maximum wind additive for F15 VREF ICE is now 5 kt. What are the maximum wind speeds for cases of tail, head and cross winds? EDIT I've found this resourc Nov 6, 2013 · We can do landing speeds, too with all the distances and weights, QTAW, hits for MELs, Vref ice, etc from ACARS, too, but it won't populate the fields like for T/O. 737-200 Basic Krueger Flaps 737-200 Adv Krueger Flaps 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. Review anti-ice procedures for the 737 Flight Crew Operations Manual. VREF SpeedsWeight FLAPS (1000 LB) 15 30 40170 159 153 151160 155 149 147150 150 144 142140 145 140 137130 139 134 132120 133 129 126110 127 123 120100 121 117 11490 115 111 108Flap Maneuver SpeedsFLAP POSITION MANEUVER SPEEDUP VREF40+701 VREF40+502 VREF40+405 VREF40+3010 VREF40+3015 . Review the training objectives and qualification requirements to prepare for your checkride. May 30, 2024 · Boeing has reportedly chosen a design fix for its new 737 MAX models that addresses an issue with anti-icing systems, but which has pushed back the certification timeline for the MAX 7 and MAX 10 to mid-2025 at the earliest. Passing approximately 1200ft the AT controls the speed in MCP SPD, the AP flies in Feb 10, 2007 · Selection of Command Speed in Landing B737-300 Normal Conditions: When using the autothrottle, position command speed to VREF + 5 knots. An airplane’s nose-up or nose-down attitude is known as its “pitch attitude. In our case is 155 kts. Familiarize yourself with ice detection and related procedures. May 31, 2025 · On the B737 NG, the Vref additive for approach is made by taking half of the steady headwind component + the full gust value (never lower than +5kts and max. If the autothrottle is disengaged or is planned to be disengaged prior to landing, the recommended method of approach speed correction is to add one half of the reported steady headwind component plus the full gust increment above the steady wind to the Jun 28, 2009 · Tech Log - 737 Vref Ice - Any ideas why VREF ICE correction is only applied to the Flaps 15 landing configuration? I can't see why a PLUS 10 knot additive would not be advisable for all landing flap configurations if icing was encounter or planned forany thoughts. The FMC automatically compensates for the change in performance for the ice at flaps 30 and 40, but was not sufficient to compensate for flap 15, so an extra 10 knots has to be added for performance, and to keep the Ref speed out May 19, 2013 · Landing distance should be corrected for any speed increment above Vref, which is planned or expected at the threshold. Study the key elements of flight deck design and operational philosophies. Jan 24, 2011 · Tech Log - 737: Anti-ice -> Icing logic -> Minimum speed reversion on final - Had my recurrent sim session recently, something strange happened during one of the approaches. In larger airplanes, you need to add to your approach speed because the relative impact of throttle becomes smaller as the aircraft becomes larger. Aug 8, 2023 · There are three primary reference speeds that pilots must be aware of when flying the Boeing 737: VREF, VREF+5, and VREF+10. Ie I have heard people saying that Vref Flap 40 is equal to V2 Flap 15 or something similar. 25° AOB + 15 overshoot upset. Describe the operation of the wing anti-ice control valves. May 10, 2004 · Tech Log - B737 Vref ICE - I'm hoping this question hasn't already been covered at length, but does anyone know the reason/s that the B737 QRH calls for Vref ICE (+10kts) to be applied when landing flaps 15 i. maintain VREF plus the wind additive until approaching the flare. Coming in too Disregarding the ice additive for the moment, this brings up an interesting question. View and Download PMDG 737 introduction and use manual online. Mar 9, 2005 · Tech Log - B737NG Vref Ice - Can anyone clarify whether Vref ice is applicable to a flap 15 landing in the following context: The aircraft has initially taken off in icing conditions on the ground and, as per Vol 1 SP. Wing anti-ice should only be turned on when actual icing has been detected. No engine anti-ice usage, wing anti-ice used only during Aug 10, 2018 · Wind correction, what does it do and when does it make sense to fill it in? Note: After the last FCTM update the maximum wind correction is Vref+15 kt or landing flap placard speed -5 kt whichever is lower. 1 May 31, 2025 · On the B737 NG, the Vref additive for approach is made by taking half of the steady headwind component + the full gust value (never lower than +5kts and max. If it doesn't use much more fuel is it better to just leave it on all the time since I tend to go afk a lot during flights. Jan 17, 2020 · Zibo’s popular freeware aircraft, the 737, was updated to version 3. 24 - Added a note clarifying that when VREF ICE is required, the wind correction should not exceed 10 knots. Review the table of contents for specific topics like elevator tab vibration. As stated in the QRH text that you quoted, you should use Vref ICE if you will have the engine anti-ice on during landing or if you have used wing anti-ice at any time during the flight. But in MSFS, at about 30 RA callout, 737 starts lifting off without any yoke input. 39 today. In response to your queery below is an excerpt from our FCOM. Even "my airspeed control is poor" would be a better reason than mom and the kids. 737 Ice & Rain ProtectionContents Panels Window Heat Pitot Heat Wing Anti Ice Engine Anti Ice Ice Detection System Airframe Visual Icing Cues Non-environmental Icing Wiper Controls Rain Repellent Limitations News Sep 18, 2022 · Even when you fly VREF ICE on one engine inoperative landings, your maximum wind additive is 5kts (so you’d be flying Vref15+10+5). Can anyone help? Thanks. Nov 24, 2020 · 20-184 Issued: 24 November 2020 Note: This Proposed Airworthiness Directive (PAD) is issued by EASA, acting in accordance with Regulation (EU) 2018/1139 on behalf of the European Union, its Member States and of the European third countries that participate in the activities of EASA under Article 129 of that Regulation. The "ICE" additive is for increased performance when additional bleed requirements are needed during engine inoperative approaches. projectman 7th Nov 2002, 14:34 Jul 22, 2024 · Boeing has finalized designs to address the engine anti-ice issues delaying certification of the 737 MAX 7. +15kts). Review the table of contents for specific topics and procedures. At takeoff and speeds above white bug, the aircraft has FULL maneuverability and is provided when the airplane has accelerated to the recommended maneuver speed for the selected flap position. 143 (h) with the landing ice accretion defined in I’m using the Level Up 737, what’s the general rule for wind correction for landing speed where you have a strong headwind / gusts? Is there a formula or calculator? Mar 27, 2025 · Boeing 737NG VREF ICE – only for flaps 15? require to use VREF ICE = VREF 15 + 10. The NG Vref ICE differs from the Classic 737 and Vref ICE is used for any Flap 15 landings ONLY, no others. The document provides guidance for selecting command speed when landing a Boeing 737-300 aircraft under normal and non-normal conditions. That is at least as high a V MCL, minimum maneuver speed in the landing configuration. Due to the wind and gusts, speed was further increased by a maximum permissible of 10 knots. You can assume 120kg/hr for 737-300 APU under full load on the ground. Jan 27, 2004 · The following figures are from a 737-700 Operations Manual. Accelerate to flaps 1 maneuvering speed before flap retraction. So i land at vref + 10. Dec 6, 2020 · The Boeing 737 FCOM agrees quite well with the procedures John K showed for the CRJ: Engine anti-ice should be on when flying in icing conditions. Aug 15, 2025 · In relation to landing or touchdown speeds, the Vref (Touchdown Speed) of the 737-800 can range based on landing weight, winds, and selected flap setting. Made a decent landing but ran out of runway because I didn't have my vref speeds set in the fmc. Includes engine fire, cabin altitude, and rapid depressurization protocols. It’s sort of complicated, but very important. Flaps 30, 50t, Vref would be 145-10=135 [Archive] 737 Vref Ice Tech LogMad (Flt) Scientist 28th Jun 2009, 17:53 the NG wing, which is markedly different to previous versions, is not significantly adversely affected by icing in normal landing configurations. Generally, this Vref speed is a 1. The Zibo 737-800 is a massive project taken on by a group of developers to expand the realism of X-Plane’s default 737. I wonder if we use flap setting another than 15 and above Just proceed as normal, unless you are landing with flaps 15, in which case you would need to use VREF ICE, that is vref 15+10. When you actually touch down, your speed should be at VREF, you bleed off the steady state headwind additive for the actual landing. 3 times the stalling speed in the stated landing configuration and at the prevailing aircraft weight. I hope I could Sep 19, 2022 · If we add 10kts to our VREF due to wind we’re not gonna allow a 15 knot margin on top of that for our stabilized criteria. Nov 6, 2008 · In this case, Vls = Vref. Review the specific sections for detailed instructions. e Flaps 15, 50t, Vref would be 145 For flaps 30, subtract 10 from the speed above, i. varkdriver495 NNC. May 16, 2012 · Hi, In the FCTM for the 737 it states that the minimum command speed setting is VREF + 5 knots. Jun 21, 2019 · Tech Log - Setting Vref Approach speed 737 - Would like to know how you handle setting the Vref Speed for the Approach. The best way to do this is on the FMS Approach page when you select the Flap 15 approach speed, simply amend the line to read 15/ (approach speed +10). What I don´t understand is why this is only applied to flap 15 landings and not to flap Boeing's 737 MAX 7 and MAX 10 certification has been pushed out to 2026, driven by persistent issues with the engine anti-ice system. Sets stick shaker logic for icing conditions for the remainder of the flight. ) We are often told that on approach we are flying at 1. That allows you to maneuver up to 40° of bank while in a coordinated turn, both engines, on a 3° glide path. I don’t think there’s a scenario where you would command an additive greater than 15kts for the current flap setting within the scopes of every checklist and Boeing manual. It explains how to calculate command speed by adding wind speed additives to the reference landing speed, with examples provided. Lets take basic data: RVN headin 360, Wind 360/20 knts, Vref = 145 / Vapp 155, for example. Technical website for Boeing 737 pilots and engineers. May 30, 2024 · The FAA initially addressed the Boeing 737 MAX engine anti-ice (EAI) system's flaws with an airworthiness directive (AD) in August 2023. The developers have focused on recreating detailed systems, including fully functional avionics and a visually accurate cockpit. The FMS for flaps 30 calculates 139. For the 737 NG and when not using VREF ICE, what is the maximum wind additive to use is it Vref 15 + 20 ? 737 (NG) has Vref-ice also, as the stall logic is reset to a raised datum by use of anti-ice measures. 3x multiple of the aircraft stall speed, which provides an adequate safety margin. If your at Vref40+20 you may as well be at flap 30 for the cost of a handful of additional Vref knots. May 8, 2012 · Maintain VREF 15 + 5 knots or VREF ICE + 5 knots minimum on final approach to assure sufficient maneuver margin and speed for go-around. Study engine cowl anti-ice, engine anti-ice, and wing anti-ice systems. When below white bug, it has Quick Reference Handbook for Boeing 737 pilots, covering emergency procedures like engine fire, cabin altitude, and evacuation. View and Download Boeing 737 quick reference handbook online. txt) or read online for free. Concerns about overheating and potential engine failure have prompted necessary design fixes. ” On the 737 MAX, the airplane’s pitch attitude is primarily controlled by a combination of two movable surfaces on the tail of the airplane: the horizontal stabilizer, which is controlled by electric and manual (pilot) trim inputs, and the elevator, which is controlled by moving the control columns. If a flaps 15 landing will be made: Set VREF 15 If any of the following conditions apply, set VREF ICE = VREF 15 + 10: • engine anti–ice will be used during landing • wing anti–ice has been used any time during the flight • icing conditions were encountered during the flight and the landing temperature is below 10°C. Apr 17, 2005 · Tech Log - Stabilised Approach Speed Tolerance - Among other things, the Boeing 737 (Classic) Flight Crew Training Manual recommends that at (1000 ft IMC and 500 ft VMC) final stabilisation height, the airspeed should not be more than VREF +20 IAS and not less than VREF. When are the ENGINE ANTI-ICE switches turned ON if icing conditions exist on ground? B737 Landing Vref Speedbvvv - Free download as PDF File (. 737 aircrafts pdf manual download. The changelog for v3. “Pitch This chapter offers a general overview of the 737 MAX Flight Crew Training Manual. With a VREF of 155, you’d fly the approach at 160 (VREF+5) for a 0-10 knot headwind. During engine inoperative approaches, the raw additive to Vref is Flaps 15 ref + 5 knots. e. The Vref equals 1. Nov 5, 2011 · The Vref Ice policy was because when Boeing was doing initial flight testing, they put artificial ice on the wings. Understand procedures for managing flight control failures, including runaway stabilizers, flap issues, and pressure problems. The time now is 08:59. The only situation where a manual mentions a higher additive is for the speeds used Feb 6, 2018 · 737-600——737-900 如果使用襟翼15着陆，并需要VREF ICE （结冰） 速度， （VREF ICE= VREF15+10），风修正不应超过10节。 基准游标 下列图显示了起飞和进近时空速表上基准游标的定位。 Feb 13, 2024 · Hello everybody. If 1/3 of the headwind component > 5 knots, you add the actual value up to a maximum of 15 knots. Product Information iFly Boeing 737 MAX The iFly 737 MAX is a high-fidelity add-on designed to offer a realistic representation of the Boeing 737 MAX 8. Site includes news, system and operating notes, technical photographs, databases and related links. Are you Talking the current gross weight or overwritting it with the estimated? Nov 12, 2008 · Tech Log - Vref & landing - Hello All Whats is the correct speed for landing a jet ? It has been suggested to me that you should land at Vref ! Im new to a jet and my technique for landing has always been Vref over the threshold and then, it becomes a visual thing. Engine Anti-Ice Operation - In-flight Engine anti–ice must be ON during all flight operations when icing conditions exist or are anticipated, except during climb and NNC. Since we were planned to land with engine anti-ice our Vref was increased to Vref ICE. While, yesterday I was Jun 6, 2007 · 737 (NG) has Vref-ice also, as the stall logic is reset to a raised datum by use of anti-ice measures.   The choice of landing approach is often influenced by considerations such as the specific criteria required for the approach, the desired level of automation, and the individual pilot's preference and techn Post 5026833 - The Professional Pilots Rumour Network (PPRuNe) is an aviation website dedicated to airline pilots and those who are considering a career as a commercial pilot. " The steady headwind additive is bled off before touchdown while the gust correction is maintained to touchdown. The wing anti-ice is effective with the slats in any position. Sep 18, 2008 · Tech Log - 737-800 Landing Speed - Technically interested passenger question: Every time I fly in a 737-800 series the landing speed always seems to be much faster than I would expect with consequent heavier breaking on the runway. When i was doing such landings in p3d, in which many people have said planes feel like they are on rails, this worked like a charm. 23 V SR0 with the landing ice accretion defined in appendix C if that speed exceeds V REF for non-icing conditions by more than 5 knots CAS; and (C) A speed that provides the maneuvering capability specified in § 25. Sep 12, 2013 · (A) The speed determined in paragraph (b) (2) (i) of this section; (B) 1. B737-800 Vref Wind Correction Calculator (v0. If you’re not sure what the right VREF is, it can be looked up pretty easily on a few YouTube tutorials. Nov 17, 2024 · How many miles out of the runway should you be at full flaps and at your VREF speed? Should I join the ILS at my VREF or should I be starting to slow down as soon as I hit the ILS? I am flying the PMDG 737-800 BTW. 25) with a SEC 1+2+3 fault the approach speed increment from 2. (B737NG has (on each wing) 2 I like to land with speed higher than vref provided by fmc for smoother landings. Or that it is affected, but the effect is already accounted for in the numbers used for all cases, ice and no ice, and therefore no "delta" for ice is required. Zibo has added immense system depth, new visual features, and much more making an aircraft that is, as many would argue, payware quality. Edit: I mentioned Boeing specifically because the QRH page shown is from a This content covers the critical aspects of hydraulics within the 737 Flight Crew Operations Manual. The 737 Classic FCTM under Landing Airspeed Control says ". Jun 18, 2021 · In small aircraft you could easily overcome a bit of wind gust with a lot of throttle. To get Vref ICE you simply add 10 knots to the normal Vref. Focus on fire-related events and abnormal engine operations for a thorough understanding. Are you Talking the current gross weight or overwritting it with the estimated? Aug 25, 2015 · I'd like to know how safe the Boeing 737-800 is during takeoff and landing when it's windy. Thanks Jun 21, 2019 · Tech Log - Setting Vref Approach speed 737 - Would like to know how you handle setting the Vref Speed for the Approach. Vapp = Vls + (5 knots or 1/3 of the headwind component, whichever value is greater). The WAI valve naturally closes at T/O thrust application and Aug 29, 2016 · Vref is the reference landing speed. The troubled aircraft manufacturer had previously admitted that a fault with the engine nacelle inlet structure and anti-ice system was present in the first models of the Oct 22, 2023 · 着陆构型襟翼15，选择Vre15或Vref ICE ，自动刹车OFF ，正常的进近准备。 过起始进近定位点，做单发着陆的延迟项目到着陆检查单，做B系统失效延迟项目到放完后缘襟翼到10。 Set Vref 15 or Vref Ice If any of the following conditions apply, set Vref Ice=Vref15+10kt: Engine anti-ice will be used Wing anti-ice has been used during flight Icing conditions were encountered during the flight and landing temperature below 10C Use normal landing procedure except: Ground proximity flap inhibit switch _____________flap inhibit Jan 31, 2021 · Using the EFB, on my flight, I get Vref30+5 normal 154 kt. Apr 2, 2001 · If your delta Vref is less than 20 kts Vapp=Vref + delta Vref + wind correction, up to a maximum of 20 kts. Nov 28, 2023 · If a flaps 15 landing will be made: Set VREF 15 If any of the following conditions apply, set VREF ICE = VREF 15 + 10: • engine anti–ice will be used during landing • wing anti–ice has been used any time during the flight • icing conditions were encountered during the flight and the landing temperature is below 10° C. I wonder if we use flap setting another than 15 and above conditions shall we use ICE additive to VREF? Adjusted stall warning logic for stick shaker, minimum maneuver speed bars on airspeed indicator, and automatically adjusted FMC displayed VREF; return to normal when engine anti-ice is positioned to OFF. The time now is 16:08. ) This logic remains set for the REMAINDER of the flight, regardless of subsequent wing anti-ice switch position (unlike ENGINE ANTI-ICE, where the stall warning logic will return to normal after positioning the switch back to OFF, IF wing anti-ice has not been used in flight. Doing so will set the VREF bug on your PFD to the correct VREF. Мы пройдем через May 28, 2014 · NOTE: Vref in FMC will NOT be adjusted automatically. b5ha miz 6ntu 8mqt xagq i7qc pp2uyuu x1eubu6 tnrwc hke9pwy