Changeset 1137:87a29e5e4b2d

Timestamp:

03/20/24 19:21:59 (5 weeks ago)

Author:

István Váradi <ivaradi@…>

Branch:

python3

Phase:

public

Message:

The G-load is measured during flare and the value at touchdown is logged (re #385)

Location:

src/mlx

Files:

• acft.py (modified) (2 diffs)
• fsuipc.py (modified) (3 diffs)
• xplane.py (modified) (3 diffs)

src/mlx/acft.py

@@ -480 +480 @@
 
     def flareFinished(self, flareEnd, flareEndFS, tdRate, tdRateCalculatedByFS,
-                      ias, pitch, bank, heading):
+                      ias, pitch, bank, heading, gLoad):
         """Called when the flare has finished."""
         (flareTimeFromFS, flareTime) = self.flight.flareFinished(flareEnd,
@@ -494 +494 @@
                             "Touchdown rate was calculated by the %s" % \
                             ("simulator" if tdRateCalculatedByFS else "logger",))
+        self.logger.message(self._aircraftState.timestamp,
+                            "Touchdown G-load: %.2f" % (gLoad,))
         flight = self._flight
         self.logger.message(self._aircraftState.timestamp,

src/mlx/fsuipc.py

@@ -572 +572 @@
                    (0x0578, "d"),            # Pitch
                    (0x057c, "d"),            # Bank
-                   (0x0580, "d") ]           # Heading
+                   (0x0580, "d"),            # Heading
+                   (0x11b8, "h")]            # G-Load
 
     TIME_SYNC_INTERVAL = 3.0
@@ -1058 +1059 @@
                 tdRateCalculatedByFS = False
 
+            gLoad = data[8] / 625.0
+
             self._aircraft.flareFinished(flareEnd, flareEndFS,
                                          tdRate, tdRateCalculatedByFS,
@@ -1063 +1066 @@
                                          Handler.fsuipc2Degrees(data[5]),
                                          Handler.fsuipc2Degrees(data[6]),
-                                         Handler.fsuipc2PositiveDegrees(data[7]))
+                                         Handler.fsuipc2PositiveDegrees(data[7]),
+                                         gLoad)
         else:
             self._addFlareRate(data[2])

src/mlx/xplane.py

@@ -676 +676 @@
                    ("sim/flightmodel/position/theta", TYPE_FLOAT),
                    ("sim/flightmodel/position/phi", TYPE_FLOAT),
-                   ("sim/flightmodel/position/psi", TYPE_FLOAT) ]
+                   ("sim/flightmodel/position/psi", TYPE_FLOAT),
+                   ("sim/flightmodel/forces/g_nrml", TYPE_FLOAT) ]
 
     TIME_SYNC_INTERVAL = 3.0
@@ -1135 +1136 @@
             tdRateCalculatedByFS = False
 
+            gLoad = data[7]
+
             heading = data[6]
             if heading<0.0: heading += 360.0
@@ -1140 +1143 @@
             self._aircraft.flareFinished(flareEnd, flareEndFS,
                                          tdRate, tdRateCalculatedByFS,
-                                         data[3], data[4], data[5], heading)
+                                         data[3], data[4], data[5], heading,
+                                         gLoad)
         else:
             self._addFlareRate(data[2])