diff --git a/Tools/autotest/arduplane.py b/Tools/autotest/arduplane.py
index ca893c2c4d..d525b21e64 100644
--- a/Tools/autotest/arduplane.py
+++ b/Tools/autotest/arduplane.py
@@ -6290,6 +6290,13 @@ class AutoTestPlane(vehicle_test_suite.TestSuite):
 
     def tests(self):
         '''return list of all tests'''
+        ret = []
+        ret.extend(self.tests1a())
+        ret.extend(self.tests1b())
+        return ret
+
+    def tests1a(self):
+        ret = []
         ret = super(AutoTestPlane, self).tests()
         ret.extend([
             self.AuxModeSwitch,
@@ -6347,6 +6354,11 @@ class AutoTestPlane(vehicle_test_suite.TestSuite):
             self.Soaring,
             self.Terrain,
             self.TerrainMission,
+        ])
+        return ret
+
+    def tests1b(self):
+        return [
             self.TerrainLoiter,
             self.VectorNavEAHRS,
             self.MicroStrainEAHRS5,
@@ -6424,8 +6436,7 @@ class AutoTestPlane(vehicle_test_suite.TestSuite):
             self.MAV_CMD_EXTERNAL_WIND_ESTIMATE,
             self.GliderPullup,
             self.BadRollChannelDefined,
-        ])
-        return ret
+        ]
 
     def disabled_tests(self):
         return {
@@ -6434,3 +6445,13 @@ class AutoTestPlane(vehicle_test_suite.TestSuite):
             "ClimbThrottleSaturation": "requires https://github.com/ArduPilot/ardupilot/pull/27106 to pass",
             "SetHomeAltChange": "https://github.com/ArduPilot/ardupilot/issues/5672",
         }
+
+
+class AutoTestPlaneTests1a(AutoTestPlane):
+    def tests(self):
+        return self.tests1a()
+
+
+class AutoTestPlaneTests1b(AutoTestPlane):
+    def tests(self):
+        return self.tests1b()
diff --git a/Tools/autotest/autotest.py b/Tools/autotest/autotest.py
index 74f08297f1..296c930d4f 100755
--- a/Tools/autotest/autotest.py
+++ b/Tools/autotest/autotest.py
@@ -278,6 +278,9 @@ __bin_names = {
     "CopterTests2b": "arducopter",
 
     "Plane": "arduplane",
+    "PlaneTests1a": "arduplane",
+    "PlaneTests1b": "arduplane",
+
     "Rover": "ardurover",
     "Tracker": "antennatracker",
     "Helicopter": "arducopter-heli",
@@ -352,6 +355,8 @@ tester_class_map = {
     "test.CopterTests2a": arducopter.AutoTestCopterTests2a, # 8m23s
     "test.CopterTests2b": arducopter.AutoTestCopterTests2b, # 8m18s
     "test.Plane": arduplane.AutoTestPlane,
+    "test.PlaneTests1a": arduplane.AutoTestPlaneTests1a,
+    "test.PlaneTests1b": arduplane.AutoTestPlaneTests1b,
     "test.QuadPlane": quadplane.AutoTestQuadPlane,
     "test.Rover": rover.AutoTestRover,
     "test.BalanceBot": balancebot.AutoTestBalanceBot,
@@ -1112,6 +1117,9 @@ if __name__ == "__main__":
         'test.CopterTests2a',
         'test.CopterTests2b',
 
+        'test.PlaneTests1a',
+        'test.PlaneTests1b',
+
         'clang-scan-build',
     ]
 
diff --git a/Tools/scripts/build_ci.sh b/Tools/scripts/build_ci.sh
index cd20a58a53..4d018d415a 100755
--- a/Tools/scripts/build_ci.sh
+++ b/Tools/scripts/build_ci.sh
@@ -135,8 +135,12 @@ for t in $CI_BUILD_TARGET; do
         run_autotest "Copter" "build.SITLPeriphUniversal" "test.CAN"
         continue
     fi
-    if [ "$t" == "sitltest-plane" ]; then
-        run_autotest "Plane" "build.Plane" "test.Plane"
+    if [ "$t" == "sitltest-plane-tests1a" ]; then
+        run_autotest "Plane" "build.Plane" "test.PlaneTests1a"
+        continue
+    fi
+    if [ "$t" == "sitltest-plane-tests1b" ]; then
+       run_autotest "Plane" "build.Plane" "test.PlaneTests1b"
         continue
     fi
     if [ "$t" == "sitltest-quadplane" ]; then