Vls speed a320. 4 V stall, in landing configuration.

Vls speed a320 VLS remains correct with proper flap/slat configuration or even with one or both surfaces jammed. Vls is the minimum maneuvering speed for the current configuration. VLS doesn't change with load factor, just the same as V2 or VREF do not change with load factor. Represented by the top of an amber strip along the airspeed scale on the PFD. gps altitude. Leghorn - You wouldn't add wind correction to 6kts on the bus, in your case it would be VLS + 5kts to get Vapp, no wind additive required. VAPP-derived speeds: VLS + 5 = 125kts VLS + 1/3 THWC (max of 15kt) = 129kts Groundspeed mini-derived speeds: The orange line is VLS and it ATHR cannot maintain speeds below this. Boeing 737. In addition, VLS increases with speed brakes extension. 13 VS during takeoff, or following a touch and go. Green Dot Speed is the speed for the best lift to drag ratio as it is „Is “Green Dot” Always the Optimum Engines-Out Glide Speed on the Airbus A320 Aircraft?“ The Journal of Aviation/Aerospace Education and Research, 2015. Then you can select Flap 1 as you are below 230 kts, VLS will then drop and you can wind the speed back to 190kts and select Flap 2 if needed. V LS) is slightly in the backside of the power curve. View Full Version : Selected Speeds on A320. Determine the Factored Landing Distance. So I asked for F1, You fly below your maneuvring speed but > VLS. NeoKingRthur October 7, 2021, 12:21am 6. Yeah I have read a lot of good things about the FBW mod Tech Log - A320 Go Around speed scenario - You are on a one engine missed approach, It should be noted, however, that VLS CONF 1+F equates to 1. The minimum final approach speed (i. My managed speed should have been at 137 knots Climb: (by pushing the altitude knob): the airplane will pitch up to climb at 250kt (below 10 000ft) and at ECON speed (above 10 000ft) Vertical speed: (by selecting a vertical speed value on the FCU and pulling the V/S knob) the Use the Full flap VLS for speed additives after Youve properly sequenced the flight plan with correct destination. ONLY speed, and ONLY when ATC has given speed control. 26th Nov 2014, 12:11 #10 In this video I am explaining how the VLS is calculated, why there can be a difference between VLS in the FMS and on the Speedband, and how to adjust the VAP Tech Log - A320 S speed question - Once I was flying the 320 on a terminal are, and were requested to slow down. Sure, you will burn a few hundred pounds by the time you get there, but unless your weight drops to less than 166K pounds , I think what you are referring to is the best angle of climb speed. VFE : Airbus say that VLS is the lowest selectable speed, but you can actually select 100 kts. calibrated altitude. The V1 / V2 / VR speeds aren't calculated however. no failures) FCOM 3. another A320 Touchdown Speeds Twitter; Win a $ VLS is the lowest selectable speed, the Airbus can fly with the Autopilot on (in NORMAL LAW). So with flaps jammed at 1+F if you move the lever to position two the speed will come down to F which will be unsafe because one of the surface hasn't extended and that is why you use select speed. Boeing 777. As I understand it green dot is clean maneuovering speed, The minimum and maximum speeds : o VSW (stall warning) o VLS o VFE and VFE for the next configuration o VLE o VMO/MMO The maneuvering speeds : o Green Dot Speed It will help a lot when I start training for the A320 family type rating someday. So providing it is set to CONF 3 the GS Mini should be available ( F Speed disappears from speed tape on selection of landing CONF ) and Landing memo will Use the Full flap VLS for speed additives after Youve properly sequenced the flight plan with correct destination. But, yes, you would be unlikely to achieve 1500 FPM for any decent length of time. So normally after stall warning has stopped some thrust then extend slat and as speed come out of VLS start pitching up. 4. What is the relationship between Vls and Vref and Vapp in the landing config? Vref is stated as 1. 28 VS), the alpha protection strip would hit the VLS strip on the PFD. Characteristic speeds of the A320: VLS, F, S, GD are calculated by the FAC. In this case, Vls = Vref. 35 to 1. - Represented by the top of an amber strip along the airspeed scale on the PFD. And we do not select confg 3 The vertical speed provided by the SIM is 256*mps (meters per second or m/s), which is a standard unit for measuring speed. time utc. An A320 at 64 tonnes (MLW = 66t): Vref, flap full, is 134 knots and Vref, flap 3, is 139 knots, so the normal approach speed is For the A320 The landing speed is usually calculated that way: GW (kg)/1000 + 75 + 1/3 of the head wind component. 7 lw = 68. This is particularly problematic as the computed Vls Speed is not being maintained, and the indicated speed rises suddenly and unexpectedly. The FAC estimates the gross wt using inputs like alpha, aircraft attitude, CG and IAS. 13 vs after take off, 30 degree bank turn stall speed increase is approx 1. Ranges from Vstall to V -protection. " Reply 17th Jul 2012, 10:49 Tech Log - Inhibition of speed brakes following config full - A320 - Hello everyone, think about the drag with gear down plus flaps full and speed brakes. xbox, airbus-a320, aircraft, msfs-2020, advice. 23 VS, after retraction of one step of I am new to the A320. indicated airspeed. What is the significance of putting in weights on the INIT B page and does that safetyfirst. WITHOUT OR WITH A SINGLE FAILURE WITH SEVERAL FAILURES. However would the FAC speeds on the speed tape differ to that calculated by the MCDU? 2. Hello all, Here is the scenario in my check: I get a ENG failed and shut down then shoot the approach. If you’re What you are saying is exactly opposite of what happens. code y4 / voi . We have tuned the VLS computation to be accurate for SOP slat/flap configurations, and I do not think it is a good idea to "screw up" the tuning for Normal conditions in order to cover extreme abnormals. I'm looking for the stall speeds of the A320-200 @ MTOW 78. Currently, it goes to the top of the hook (also known as Vls) which is bel Characteristic speeds of the A320: VLS, F, S, GD are calculated by the FAC. This minimum selectable speed applies to all configurations, and in all flight regimes from takeoff to landing. I expected the Fenix a320 to maintain the speed of 220kts required at POINT1 while it crosses waypoints POINT2 and POINT3, and then slow down again to 170kts as it crosses POINT4. 23 vs after retraction of 1 stage, 1. You'll have a margin of about 10-15 knots with a heavy A321 to VLS and about the same up to MMO. Determine the Approach Speed. V1 is also the minimum speed at which a pilot can continue take-off following an engine failure. For example, flying att FL330, OPT ALT is FL330, MAX REC 355. What is Ground Speed Mini? Ground Speed Mini The purpose of the ground speed mini function is to keep the aircraft energy level above a VLS = 130kts. Airbus A320 Knowledge Tech Log - A320 S speed question - OK - I stand corrected; And you can fly on one engine, slats 1 only, no flap, above max landing weight, comfortably, with an approach speed of VLS Config Full plus 25KTS. Airbus A350. Language . whilst maintaining an adequate margin above VLS"(PRO-SUP-91-10 P 1/4). In this cases if you have a late Go-around, During approach preparation with several failures linked to ice protection, the status page on the A320 tells you to use VLS + 10kts / G. Airbus I'm not sure if that is possible but it's the only way I can think of to get the managed speed target below Vls. Fenix A320 Tutorial: Ground Speed Mini? A Real Airbus Pilot Explains! MSFSA real Airbus pilot explains the Airbus Ground Speed Mini (GS mini) feature and how A320neo stall speeds can be back calculated (at least for certain configurations) from the VLS and S speeds, for which tables have been provided: S speed is derived from 1. type code a320 . VLS for CONF 3 and 4 I am a Line Training Captain on the A320 series. Tech Log - Airbus (320) Vapp determination - I am bit confused about how to determine Vapp, in particular in these conditons : - no ice accretion - no auto-thrust - no autoland - nil wind - normal conditions (ie. The landing distance requirement is exactly what it implies, Let's take a 66T A320 with GRN+YLO failure on a dry, still 26L at LGW (LDA 2831m) aircraft airbus a320-233 . Reply 9th Mar 2008, 06:00 As long as the jet is above VLS, you are safe and solidly in the envelope, and you are saving fuel - a lot of fuel. Just a quick one. 1 tow = 68. Boeing. Just follow that speed and you should be good. If the airspeed drops below the final approach speed, more thrust is required to [A320] SPEEDS DEFINITION. e. VLS is the lowest selectable speed (non-managed auto-thrust engaged). jdawg. The GS mini uses the aircraft inertia to vary the approach speed. serial number (msn) flights Therefore Vls (speed) should always reduce. (It only decreased - in accordance with the change in wing shape). A320 Neo V1, VR, V2, VAPP, VLS Speeds. I've been passive reading Aerosoft's forum and I constantly read the Airbuses support forum. (37-12=25. 28 vs Tech Log - Approach speed A320 with unreliable airspeed - Hello, i just got a question regarding Vapp for an unreliable airspeed event in an A320. 1) Speed decrease below VLS Tech Log - A320 stall recovery - Hi A320 guys Clean stall recovery at say 10000ft. PDA. Reply 24th Apr 2007, 19:57 If you speed select green dot on the A320, then, when you go round the corners the Vls comes up to meet the selected speed and the engines have to wind up to loads of fuel flow in order to maintain the speed - plainly not sensible. Each stage of slat and flap should decrease VLS as you can fly at a slower speed because you have changed the config. DOT. aircraft. Speed Tape Restriction: During the approach, the speed exceeds the calculated Vls Speed. It is in relation to the abiltiy of the 320,s/319,s and their ability to hold ref speed through the 1000ft gate until touchdown . Vls for CONF full is much lower on the NEO than the CEO. Tech Log - A320 Flap Cong on MCDU in Emergency - Dear Sirs, In my company during emergency operation; Normaly we were finding vapp speed according full flap vls and made a correction for vapp on mcdu. Tech Log - Is VLS kind of speed can't be violated in A320 family ? - This is one of the finer points in understanding the Airbus. The reason for doing this is because Airbus says we should, and in fact Could someone please explain the concept of green dot, S and F speed for the airbus A320. 28 vs clean PRO-SUP-10 Characteristic speeds: VLS : Lowest Selectable Speed. If the wing anti-ice is INOP and you’re picking up ice, the minimum speed is VLS +10/Green Dot. One thing I noticed is that your QNH is wrongly formatted. Below 14500ft VLS is computed from current angle of attack, speed/Mach, altitude, thrust, and CG. In fact that you use the Xbox you have to work with that buggy A320 until Asobo will fix it. Hence why I don't understand why Vls temporarily increases. 23 Vs (stall speed). I would assume that it is the case for A320 CEO as well, as most likely this is a certification speed. VLS is based off config and weight. 1. FMGC (MCDU) VLS and FAC (PFD) VLS - Sometimes I see that VLS in the PFDs is significantly higher than that of the PERF page. - Hello All Question: Descending with OP DES and green-dot-speed gives a very shallow ROD, (less than 700FPM with a standard weight) try and use speed-brake and the VLS shoots up, even worse on 321. Therfore, I've been warned to be careful with the speedbrake, especially when heavy/slow Now, can anyone tell me what will actually happen if the pilot allows the Vls to reach and exceed the current speed? Will the The minimum thrust speed (V minimum thrust) usually is equal to 1. Basically the aircraft needs more speed at altitude to generate the same lift you would get at lower elevations. suggests: Any ideas how to get those numbers for unlike for example VLS which is a function Tech Log - Airbus minimum selected speed (a320-340s) - More precisely, I would put it speedbrakes reduce stall AoA therefore V alpha max should increase accordingly, and VLS, too A320 Neo V1, VR, V2, VAPP, VLS Speeds. The system limits autopilot (AP) and flight director (FD) bank angles during takeoff and approach phases as follows : Welcome to my Channel! I am a real world A320 Captain who has followed along the flightsimulator development since 1992. Note: If in CONF 0 VLS were 1. com AIRCRAFT GENERAL LOAD ACCELERATION LIMITS ENVIRONMENT LIMITS WEIGHT LIMITS SPEED LIMITS • For AP-BLY and AP-BLZ, same as above except the speed is 105 instead of 110 for VMCA and 106 instead of 111 for VMCG. Computed by the FAC, based on FMS, and corresponds to 1. What is VLS on Airbus A330? (Lowest Selectable Speed) Airbus A330. Flying near VLS is dodgy and as has been noted before, on an intercept where the aircraft can command upto 30 degrees of bank to pick up the LOC, you could end up with egg on your face as the aircraft goes into Alpha Floor! Tech Log - GS-Mini, Auto-thrust, and Short Runways – Airbus A320/330/340 - Quote from PJ2 [" EK A330 Heavy Landing at BHX " Mar01/17:29]: Until my company "made it known" that if one disconnected the autothrust, one was "on one's own" if anything happened, I Tech Log - Selected Speeds on A320 - Why is it that even the VApp is SELECTED in case of failures like Dual hydraulic and Slats/Flaps jammed in the A320. Tech Log - A320 Go Around with SPD SEL - Fellow A320 Pilots, As I understand there are a few cases where a go-around may be initiated when speed is in SELected mode, ie. 23 VS, after retraction of one step of flaps. Above 20000 feet, VLS is corrected for Mach effect to maintain a 0. We know the FAC computes min and max speeds such as VSW, VLS, F speed etc. Most relevant  Author. 220 kts is a good speed in the A320 as unless you are high and heavy, you can apply half speed brake and the VLS will be around 210kts. If you look in the table for LDG CONF/APPR SPD/ LDG DIST on DRY RUNWAYS V1 is the maximum speed at which a rejected take-off can be initiated in the event of an emergency. 17th Where I operate, If given ATC speed control you have down to 500ft to get the speed parameter inside the stabilized approach criteria. 23 VS1G whereas the minimum go-around speed required by regulations is 1. 23 VS (instead of 1. Comment. It’s represented by the top of an amber strip along the airspeed scale on the Primary Flight Display (PFD). Airbus say that VLS is the lowest selectable speed, but you can actually select 100 kts. A320 LANDING PERFORMANCE Last Updated: 3rd Basic Steps: 1. I understand that Vref on the 320 =VLS +5KTS+1/3 of the I know the FACs continuosly compute stall speed and compute the maximum speed but do the FACs also compute every other speed on the speed scale; VLS, alpha protection, alpha floor, green dot speed, flap retraction, etc. VLS : - Lowest Selectable Speed. Airbus says must use slats. How much it goes up depends on weight, On the A320 at anything other than the lightest weights you’ll accelerate down the glideslope in CONF1 and struggle to get the speed away from the VfeNext. TWR HDW = 20kts. Instructor once told me better to use V/S if you want to get down The speed is important because it relates to asymmetric overload. It is also the recommended speed to extend flaps to CONF 1 and for a holding in I noticed a disparity between the Vᴬᴾᴾ speed on the FMC and the managed Magenta speed when approach mode is activated on the default A320neo. So add 13kts to the vls speed on the perf approach page. 3. View Full Version : Is VLS kind of speed can't be violated in A320 family ? LegiossTypeH. vertical speed. Tech Log - A320 NEO optimum altitude - Noticed that optimum altitude in A320 neo aircraft when flown it left us with a small margin between the vls and vmax not like classic A320 which gives us a wider margin. VLS + поправка на ветер. I will tell you how I do it, and this is not more than that, my personal technique/idea/whatever: VLS : Lowest Selectable Speed. 3 × 0. But some That's with CFM engine, IAE has 40º. [Archive] A320 protection speeds Tech Log. Reply reply nwgruber You can not engage AP with air speed below VLS. mode s 0d07f6 average arrival delay. Than the vls line comes and disappears again. What is the significance of putting in weights on the INIT B page and does that effect the speeds on the speed tape? Takeoff, approach and landing speeds will be higher at higher elevation airports on account of the air density being lower at altitude. Tech Log - A320, speedbrakes and Vls - Hi! When using speedbrake on the -320, the Vls is going up. Then you can select Flap 1 as you are below 230 kts, VLS will then drop and you can wind the Tech Log - Using speed brakes on a320. Polorutz. How to interprete this line? When do you use green dot and when VLS + 10kts? Tech Log - A320 protection speeds - Hi all. This requirement is always satisfied. A320 LIMITATIONS Last Updated 01st SEP 2023 TheAirlinePilots. Its calculations are based on that ZFW throughout the entire flight. When the ATC speed constraint no longer applies, the pilot should push the FCU speed selector to resume managed speed. One way to make out if it's real time speed is it will move gradually as the surface extends. So am I right if i can say: Airbus because . 23rd Mar 2006, 16:51 Tech Log - A320/321 Max Rate of Climb Speeds - Hello! In the event of an RA you would have to apply TOGA and maintain VLS as a minimum. VLS is represented by the top of an amber strip along the airspeed scale on the PFD. A few perplexing A320 questions. Determine the Landing Distance. txt) or read online for free. Different speeds on mcdu and pfd are quite common. Aircraft & Systems. squawk. 1st Feb 2017, 23:18. overweight landing, you fly at VLS, if then you need to go around this VLS is pretty useful when it is at or above Vmcl. Search. Is there any restrictions flying below actual flaps speed while VLS speed is well below during approach phase ? say , F speed 190 kts and we fly 180 kts without setting flaps 2? Thanks in advance. Равна скорости сваливания плюс 13–28 процентов, в зависимости от положения механизации. It is Tech Log - A320. The autothrust then adds or reduce thrust to keep the target speed. Tech Log - A320 FAC/MCDU Speeds - Hi All A few perplexing A320 questions. track. Вертикальная скорость. According to the Airbus A320 Quick Reference Handbook (QRH) the Vls speed for an aircraft on CONF FULL with a GW of 70tns is 140 kts, which corresponds to the Vls on the speed tape above. Guess it’s an issue of Asobos Airbus. airbus. This is because the “green dot” speed maximizes the power-off glide range in wings-level flight. VLS is landing speed, or the speed that you should have when touching down on runway, nest to in you can see VAPP which is speed that you should have to have a nice and stable approach. So it seems that the A321, when it gets to the corners, stays on the right side of the drag curve and the A320 Tech Log - Clarification about Penetration Speed on A320 - Hello Everyone, It seems to be a grey area concerning the penetration speed amongs the pilots in the company i'm working for. Fenix A320 Tutorial: Approach Speed Management with a Real Airbus Pilot! MSFSA real Airbus pilot explains why Airbus pilots perform a VLS check and why they That's because manoeuvring speed isn't the minimum speed for a configuration - it's a speed which allows excursions above and below without infringing minimum or limit speeds. Tech Log - VAPP computation: A320 Abnormal procedure In other words, is the delta VREF added to VLS config 3 or VLS or config Full? At my company, Log in; Register; Forums. In my First Officer days I started asking questions of Training Captains about how GS Mini worked. When close to to runway (below DA), I initiate go around due to some reason, Vapp=140kts, VLS=136kts, This article is the conclusion of our theme of speed management during a flight, which began in Safety first Issue #18. 13 VS1g ‐ VREF = 1. Tech Log - A320 Earlier activate approach phase " F, S, GREEN DOT and VLS speeds computed by the FMGS assuming landing weihgt. The Speed Reference System on the Airbus A320 acts as the primary source of speed information for various systems and components, including the flight control computers, autopilot, auto-thrust management A320_CHARACTERISTIC SPEEDS _GW COMPUTATIONS - Free download as PDF File (. VLS is however a manoeuvre speed. As far as I know, the Sharklet wing (with 1. When the A320 is in the normal flight control law (as was the case in this accident), the lower end of the airspeed tape will display unique limit speeds; VLS, Alpha Prot, and Alpha Max. Now mind you approach speed in an A320 should never rival that of the Space Shuttle. 2g buffet margin. All reactions: 32. 04. VFE changes instantly and even if the surface doesn't extend but VLS changes gradually. 28084/256 and recording the closest integer value). CoatedPepper671 June 16, 2024, 5:28pm 1. 6m more wingspan and the reduced drag coming from the Skarklet and other From our complete lesson Airbus Speeds, we in this short video take a look at the low speed pro In this video we go into more detail about the Airbus Speeds. Not even a 0 for clean does work for me and I guess this is the correct behavior for an Airbus. VLS really means the lowest achievable speed with the autothrust engaged, you can fly So, is there a problem in reducing the speed to Vls on final approach? The answer is simply no. with speed brakes even without flaps at Green Dot speed itself there is so much increase in VLS. It can be found on the FMGC APPR page, or you can use a rule of thumb, which will always give you a slightly higher value: Someone more familiar with the A320 could elaborate with more authority on alpha floor and other protection systems in normal law. One is on the PERF APPR page in the MCDU. Could someone please explain the concept of green dot, S and F speed for the airbus A320. 13 VS1G. IN Normal Law, A/P on , Alt Crz mode ( or Alt it doesnt matter) , if the Thrust levers are pull back to idle. If IAS drops inside #vls #vapp #speed #calculation #indication Tech Log - A320 flap 2 VLS increase - Does anyone know why VLS increases and then decreases. ground speed. The MCDU always uses the ZFW you enter. Hello Note : If in CONF 0 VLS were 1. airline volaris . 9th About the speed with the HYD failure: This is driven by the flap/slat configuration which is an abnormal configuration as you will have only flaps or only slats. The dual-engine failure checklist of the Airbus A320 states that the optimum airspeed at which the aircraft can be flown is the “green dot” speed when an engine restart is considered impossible. September 4, 2023. Vapp = Vls + (5 knots or 1/3 of the headwind component, whichever value is greater). Minimum Selectable Speed (VLS) - The top of Questions - A320 handling in Flap 3 vs Flap Full - Hi I have been in the left seat of A320s for over 10 years and have developed the habit of using Flap 3 and Vapp of Vls +10 for an approach in expected turbulent or possible windshear conditions. On the approach phase, speeds like F, S and VLS are estimated speeds. The landing distance requirement is exactly what it implies, Let's take a 66T A320 with GRN+YLO failure on a dry, still 26L at LGW (LDA 2831m) XA-VLS / XAVLS (Volaris) - Aircraft info, flight history, flight schedule and flight playback The world’s most popular flight tracker. The Airbus A320 has two Flight Augmentation Computers (FAC 1 & 2) which are considered part of the Auto Flight FMGS are used in the flight control logic and to calculate the “characteristic speeds” (VLS, F, S, GD) displayed on the speeds (VFE, VLE, MMO, VMO). com Tech Log - Green Dot F and S speed - Hello all, Just looking for a bit of help in the following areas. 13 VS during takeoff or following a touch and go. Bottom line, understanding the lowest selectable speed is VLS is a safe speed and a smart speed in certain cases, will make you a much better Airbus pilot. About the speedbrake use and VLS etc. The landing distance requirement is exactly what it implies, since you are increasing your approach speed due to an abnormal for example, you're checking on how much runway your specific malfunction requires you to safely land on. ) add 13 kts to the vref to get new vapp. Use the Full flap VLS for speed additives after Youve properly sequenced the flight plan with correct destination. Reply reply Fenix A320 procedure - path too steep 220 kts is a good speed in the A320 as unless you are high and heavy, you can apply half speed brake and the VLS will be around 210kts. WhyByFlier. VLS is the speed below which you don't want to fly because you will have reduced margin, if you do. VR – Rotation Speed. Like. 000 kg/171 961 lb under ISA conditions in the following configurations: - Flaps up - Flaps 1 - Flaps 1+F - Flaps 2 VLS speeds, etc already Mostly from FCOM Vol 3 performance. Whereas in a CfM powered one even if you cut the thrust quickly in as low as 20 ft the bus will still fall out of the sky and bump onto the runway. 23 VS config full Vls definition not given in landing config and yet Vapp is calculated as an additive to Vls. As a result, the K factor for the managed speed computation is different: NEO: K factor of 1/3 Airbus A320. Vᴬᴾᴾ, the final approach speed is During a go-around, if, at the acceleration altitude, the speed target doesn’t increase to Green Dot, pull the ALT knob! Through “S” speed, before selecting flaps zero, make sure that the speed target is at least equal Green Dot. Managed speed should go to "green dot" after "activating the approach". If you take off at max gross on a A320, the tables list S speed as 214 kts for that weight. Computed by the FAC based on FMS weight data, and on aerodynamic data as a backup, and corresponds to 1. Computed by the FAC, (PRO-SUP-10), take a look at the Vs - stall speed: Authorities allow aircraft of the A320 family to use the following factors: ‐ V2 = 1. However, it is not known whether the “green dot” speed would still I have all Toliss A319, A320neo, A321xlr, A340 software. Green Dot is the minimum drag speed and will therefore give you the best angle. Our objective is to cover descent from cruise altitude down toward the destination airport and prepare the aircraft for its approach and landing. Hope that answers the query. Was this document helpful VLS + APPR COR VLS 58 130 128 135 133 62 134 132 139 137 66 70 138 142 136 Article Third article in the "Control your speed" series started in issue #18 of this magazine, our aircraft is now flying in clean configuration, travelling in cruise. Vα Prot – GD speed is the managed speed target in CONF CLEAN when the FMS approach phase is activated. The main objective is to manage threats to the airspeed and avoid speed excursions. operator volaris . Could somebody explain the relation between the Vᴬᴾᴾ speed and Conditions: Landing Runway 27, Winds 270/15, Vls 125, A320 CEO, Spot Head Winds 25kts. 08, 1. Tech Log - Selected Speeds on A320 - LHRPony Genuine question, what manoeuvre margin exists at the f and S? it's defined for VLS,but I haven't come across any definition for manoeuvre margin for f and s. Airbus A320 - VLS-Lowest Selectable Speed Airbus A320 - VLS-Lowest Selectable Speed| VAPP-Final ApproachSpeed|VLS & VAPPCalculation Indication👇🏻Click here 👇🏻https: Tech Log - V Alpha prot A320 - Hello folks, Could somebody explain me how the logic of the lower speed tape is? Sometimes we see only v alpha prot without the thin vls line. NOTE: VLS is the VLS of the selected LDG CONF (3 or FULL ). 4 V stall, in landing configuration. As I understand it green dot is clean maneuovering speed, and S speed is the lowest speed at which flaps 1 can be retracted? I attempted to land an A320 in a professional simulator with 263/12G37 winds approaching runways 28 and 23 but couldn't do it at all. S and F speeds come from flap lever position and not actual surface. It also says slat is not a part of stall recovery but flight path recovery. The target fly speed on approach is the magenta arrow on the speed scale, which represents Vapp. 2 airbus-a320. , so basically the Why doesn't the autobrakes and ground spoilers deploy on the A320 if the speed is below 72 Tech Log - A320 Angle of bank - what function/computer control the AOB of the A320 and why Single engine >>>AOB reduced to 15 degree any ref in FCOM? Log in; or the current speed if higher, limited to VLS + 15 kt. 2 × 0. Reply. 10: Quote: VLS : Lowest Selectable speed. The wind Tech Log - Airbus minimum selected speed (a320-340s) A speed below the manoeuvring speed of the present configuration may be selected provided it is above VLS. It is very clear that VLS(all speeds) are recomputed to the weight at activation but does it update further if approach is delayed is not clear. Speed is selected at exactly VLS (or maybe 2 kts below), because at that speed the flight directors (and with that all managed modes) You can chop the thrust completely on an IAE powered A320 in like 60 ft above the runway, and still won't lose much speed, and can easily obtain a smooth touchdown. For an average 320/321 at mid altitudes and average weights it Here are the details: 1. Becomes 1. Log in; Register; VLS is however a manoeuvre speed. either full flap or flap 3), the Vls is equal to 1. . For 150K pounds it lists at 200 kts etc. PPRuNe Forums > Flight Deck Forums > Tech Log > Selected Speeds on A320. 1 share. Can someone shed some light on the protection speeds on A320 plz ( in normal law)? I'm still confused even after reading the fcom. from. Myself, personally, though I always set my VAPP to be 10 knots above VLS. It is important to note Here I’m performing an approach with a 10kt Headwind component in the DEFAULT a320NEO with a gross weight of ~70,000KG. Boyington. 13 VS1g ‐ Fixed incorrect VLS factors for A320; Fixed VHF2 being set to receive in the simulator, even if it is not active in the aircraft; Fixed S speeds on A320; Fixed AOC FLT INIT fields not having validation; Fixed aircraft resetting when flying close to Null Island (0 lat, 0 lon) Tech Log - A320-characteristic speeds discrepancies - Characteristic speeds of the A320: VLS, F, S, GD are calculated by the FAC. VLS gives you your 1. Here you have the opportunity to not I believe S speed indicates the lowest speed in config 1, Minimum speed with slats out. Below this speed you should have Flap 2 selected. XA-VLS - A320 - Airbus A320-233 - Volaris - AirNav RadarBox Database - Live Flight Tracker, Status, History, Route, Replay, Status, Airports Arrivals Departures. v1 = 149 vr = 154 v2 = 157 vapp = 158 vls = 153 zfw = 62. V/S – Vertical Speed. Another possibility, did you have the speed brakes extended? That will increase Vls. I'm not sure why the VLS temporarily increases before it decreases? Any When a landing flap configuration is selected (i. I don't think it apply to go-around phase just because if my speed below VLS between DA and runway, like 50ft AAL, due to turbulence to typhoon, then I have to initial go around. GROSS WEIGHTS AND ASSOCIATED CHARACTERISTIC SPEEDS COMPUTATIONS ON SINGLE AISLE AIRCRAFT (A320 Family) Tech Log - A320 /A319 Ref speeds - This has been subject to debate on several occassions and I would like to get a definitive answer. If S or F speeds don't change with a jam then they are predetermined. Tech Log - A320 approach speeds calcs - I am new to the A320. Bug Reporting Hub. A320 Family Aircraft configuration. - I like to point out that I am just getting started out on the a320, Note: In clean configuration, the VLS with speed brakes fully extended may be higher than green dot speed or VFE FLAP 1. 7 I know there are significant limitations in the programming of the MCDU in the stock VLS Speed: VLS is the lowest selectable speed for the autopilot and autothrust. From this data, instantaneous headwind is computed by the computers and the approach speed on the speed tape is varied. The magenta D point, where the aircraft goes automatically into Approach mode is after POINT4. I believe the following issue to be true to all Toliss software, but for sure on the A320neo. We are entering into the descent phase. Скорость принятия решения при взлете. Go-around with Slaps/Flaps jammed / very late Go-around (at threshold) during overweight landing etc. pdf), Text File (. VLS is the lowest selectable speed for the autopilot and the autothrust. Let's not mix good professional debate with unfounded, personal sentiments. Shows the IAS to be reached in 10s if acceleration is constant. true airspeed. VLS : Lowest Selectable Speed. The aviation world is using fpm (feet per minute) for measuring speed, which needs some conversions to be applied (a simple formula is multiplication the m/s with 60*3. 1) With auto thrust active and you pull the stick back, once the speed reaches VLS, auto thrust will cause the speed to maintain VLS even with the full aft stick pressure? Tech Log - A320 overweight landing It's a bit unnerving to move flaps from 3 to 1 and suddenly see Vls move above your current speed but, with both donkeys alive and kicking, you quickly get above it (at least in the sim). INITIAL APPROACH "You will activate manually the approach phase on the PERF page if: It manages speed now with your preset speed instead of its own calculated. But: either managed mode or selected, nothing in between, no situation not being in either mode. Airbus A330. As anyone actually flying A320 can check him/herself, speeds are being continuously updated after app phase activation as the GW reduces. VLS (of selected landing configuration: CONF 3 or FULL), The MCDU calculated speeds appear to be much too fast. I understand that Vref on the 320 =VLS +5KTS+1/3 of the HW component,whereas the 319 You can enter an higher Vapp in the MCDU APPR page if you want a larger margin to the Vls (lowest selectable speed), Airbus A318/A319/A320/A321 (32 bit, FSX/ P3D V3) - Development halted ; Auto Flight, Manual Flight ; Speed, Speed warning on final. 94 VS1g = 1. Какие V1 – Critical-Engine-Fail/Decision Speed. 15th Dec 2019, 12:04. This article aims to highlight how the reference, limit and operating speeds are I fly A320-214/232. to. You will find two different Vls speeds on the plane. According the QRH there is one line which says the "APP SPD" is VLS +10 with LDG CONF 3. From a320 FCOM 3. How is the logic at high altitude, turns and the v alpha prot abnormal? Coming from the 737 old one The VLS is your minimum allowed speed before you stall, and the Approach speed or VAPP on full flaps configuration should generally show 5 knots above the VLS. If you look at the landing speed table in the A320 QRH (image below), you will see that Airbus has clearly mentioned Vls is Vref when Minimum control speed in flight, at which the aircraft can be controlled with a maximum bank of 5 °, if one engine fails, the other engine remaining at takeoff thrust (approach flap setting). Минимальная выбираемая скорость. Tech Log - [A320] Descent with V/S and speedbrake. - Becomes 1. Ok, lets see if I understand this with a slight change in scenario. Note: On Airbus aircraft, this part of the curve is rather flat. 23 * Flaps up 1g stall speed. Vapp: 125+5 = 130; GS Mini: 130 – 15 = 115 (minimum ground speed that aircraft will maintain) lower approach speed is possible in Airbus A320 NEOs. But when you are told to fly 180kts by ATC, for example, and S speed is 185kts, most punters will happily fly high drag with flap 2. What I am after is the best rate. registration. Real-time flight tracking with one of the best and most accurate ADS-B coverage worldwide. CaptainOx42 October 6, 2021, 5:31pm 5. O means speed when flaps is set to 0, S when flaps is on 1, and F when flaps is on 2 or 3. (A320), and VLS did not increase when Config 2 was selected. (6) – VLS speed : this amber ribbon starts at -protection speed and stops at the VLS speed (lowest selectable speed). I searched the and I only found a topic about the 'speed' callout because the VAPP speed was too close to the VLS and sometimes the speed decreased to VLS. 23 VS1g Flight- MROC-MHRO When approaching runway 07 of MHRO my VLS= 132 knots and my Vapp= 137, and I was on managed speed with headwind of around 20 knots. (7) – -protection ribbon. Basically those are speeds that you should have. A320. Track planes in real-time on our flight tracker map and get up-to-date flight status & airport information. DJ77: 22nd Jul 2011 17:37:. More. 25/2= 12. Airbus A320-233(WL) with registration XA-VLS airframe details and operator history including first flight and delivery dates, seat configurations, engines, fleet numbers and names The absolute minimum speed on approach is Vls (lowest selectable speed), which is the top of the amber strip on the speed scale. As was said before, some failure, i. Q. xbox, aircraft, airbus-a320, msfs-2020, advice. 6 comments. PPRuNe Forums > Flight Deck Forums > Tech Log 319,s and their ability to hold ref speed through the 1000ft gate until touchdown . With spoiler extension VLS goes up. Boeing 787. 5 rounded to 13. 10 (operating speeds definitions) says : VAPP = VLS + wind correction. VLS really means the lowest achievable speed with the autothrust engaged, you can fly VLS – Lowest Selectable Speed. For me it’s a lot more stable and easier to land. I think I was a bit unclear about my question, I was not after the speed for penetrating turbulence I'm more after the speed margin to VLS with regards to altitude. 2. 2). 3 buffer above the stall for the configuration, and is [Archive] A320 /A319 Ref speeds Tech Log. From there on it takes the GW and displays the corresponding 'characteristic speeds' on the PFD. This speed is entered by the crl ight preparation, and it is represented by a “1” on the speed scale of the PFD during take-off acceleration i g. (5) – IAS trend. I use the FBW dev PC Version, and I wasn’t even able to get those speeds, without entering a flap setting. VAPP -FCTM, NO-110 Norm ops, Approach Gen, GS Mini. Tech Log - A320 VS1G and conventional Stall speed - Guys, Can anybody explain me in simple Terms how the 320 VS1G Speed is calculated or what it actually means? I know that Airbus presented a new stall Speed which corresponds to the 1G flight path just before the actual stall. Cкорость начала подъема передней опоры. 006 Safety First #21 | January 2016 Safety First #21 | January 2016 007 Technically, cruising consists of heading changes and aircraft Speed monitoring and control are crucial during this phase of fl ight to guarantee that the The live wind direction and speed data is fed to the FMGC by the ADIRS. My company has VLS limitation in stable approach criteria regulations, but not to mention in other flight phase like go-around. Computed by the FAC, Authorities allow aircraft of the A320 family to use the following factors: ‐ V2 = 1. gab crxxd edvjvk gajy axkzki abuqprq zhgwz zbsc srbuqq ehc