User manual

FDC Live Cockpit! 2011
Aerosoft GmbH 2010
80
Reduction The Vref speed reduction
A speed reduction in knots. If you take off using a higher flap setting
than the normal flap setting, the V-speeds will be reduced by this
value, making the V-calls appear earlier. (See example below.)
Speed in knots.
Required:No
As an example, the Boeing 737-400 will normally use Flap 5 for
takeoff. If the aircraft weighs 121,000 lbs, the V1, VR, and V2 calls
will be made at 137, 140, and 149 knots respectively. If you take off
using Flap 10 rather than Flap 5, the speed reduction table indicates
that the Vref speeds should be reduced by 10 knots. In this case, the
V1, VR, and V2 calls will be made at 127, 130, and 139 knots respectively.
Creating a performance file for the Boeing 737-400 (part II)
•EnterBoeing737-400inthetextboxatthetopofthepanel.
This is the name of the aircraft that will appear in the Select
Aircraft drop-down box of the Select Aircraft panel.
•Enter2intheCrewtextbox.Thispopulatesthecockpitofthe
aircraft with a Captain and a First Officer.
•Thelargetableatthetopofthepanelwillcontain14columns.
Although the default Boeing 737-400 performance file contains
very detailed data for the aircraft, we will only enter three rows in
the table, for various weights of the aircraft. The values are given
in the table below:
W V1 VR V2 F0 F1 F2 F5 F10 F15
154 158 162 168 235 000 000 215 205 190
121 137 140 149 235 000 000 215 205 190
000 112 115 130 235 000 000 215 205 190
F25 F30 F40 Pitch
185 180 175 000
185 180 175 000
185 180 175 000