Vref Circuit

In recent times, vref circuit has become increasingly relevant in various contexts. REASON FOR WIND ADDITIVE DURING LANDING - PPRuNe Forums. If your delta Vref is greater than or equal to 20 kts Vapp=Vref + delta Vref. For example if you have a green+blue hydraulic failure, delta Vref from 2.26 is 25 kts, and say for 68000 kg landing Vref = 138 kts, so Vapp=138+25=163.

If your delta Vref is less than 20 kts Vapp=Vref + delta Vref + wind correction, up to a maximum of 20 kts. Vref & landing - PPRuNe Forums. Similarly, 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. So in my new type (Hawker 800) I maintain Vref Building on this, airbus Landing Speeds - PPRuNe Forums. In this case, Vls = Vref.

The target fly speed on approach is the magenta arrow on the speed scale, which represents Vapp. Vapp = Vls + (5 knots or 1/3 of the headwind component, whichever value is greater). If 1/3 of the headwind component > 5 knots, you add the actual value up to a maximum of 15 knots.

Setting Vref Approach speed 737 - PPRuNe Forums. Tech Log - Setting Vref Approach speed 737 - Would like to know how you handle setting the Vref Speed for the Approach. Are you Talking the current gross weight or overwritting it with the estimated? B737-800 Ref Speeds - PPRuNe Forums. Vspeeds, Vref and flap schedules are based on weight of the aircraft.

Flap speeds in the NG are updated via the FMC unlike the classic where its a standard speed. It's important to note that, vAPP computation: A320 Abnormal procedure [Archive] - PPRuNe Forums. During an abnormal procedure that would require a landing in config 3, do I have to add the delta VREF before or after having selected config 3 on the MCDU?

B747-400 shift in Flap manoeuvre speed. A: When the 747 Classic was developed, it was a Vref airplane. It's important to note that, there was only one Vref chart.

It's important to note that, when the Vref was increased because of non-normal conditions, all the flap speeds, which were based on the Vref, changed also. When the 767/757 was developed, Vref30, Vref25, and Vref20 were developed. The maneuvering speeds are referenced to Vref30. Additionally, tech Log - VAPP computation: A320 Abnormal procedure - Hello everyone, During an abnormal procedure that would require a landing in config 3, do I have to add the delta VREF before or after having selected config 3 on the MCDU?

Vref = vs0 x1.3 vs vsr0 x 1.23 - PPRuNe Forums.