diff --git a/ArduPlane/GCS_Mavlink.cpp b/ArduPlane/GCS_Mavlink.cpp
index fe254246f6..74e5f11f36 100644
--- a/ArduPlane/GCS_Mavlink.cpp
+++ b/ArduPlane/GCS_Mavlink.cpp
@@ -310,19 +310,6 @@ void Plane::send_wind(mavlink_channel_t chan)
         wind.z);
 }
 
-/*
-  send RPM packet
- */
-void NOINLINE Plane::send_rpm(mavlink_channel_t chan)
-{
-    if (rpm_sensor.enabled(0) || rpm_sensor.enabled(1)) {
-        mavlink_msg_rpm_send(
-            chan,
-            rpm_sensor.get_rpm(0),
-            rpm_sensor.get_rpm(1));
-    }
-}
-
 // sends a single pid info over the provided channel
 void GCS_MAVLINK_Plane::send_pid_info(const AP_Logger::PID_Info *pid_info,
                           const uint8_t axis, const float achieved)
@@ -451,11 +438,6 @@ bool GCS_MAVLINK_Plane::try_send_message(enum ap_message id)
         plane.send_wind(chan);
         break;
 
-    case MSG_RPM:
-        CHECK_PAYLOAD_SIZE(RPM);
-        plane.send_rpm(chan);
-        break;
-
     case MSG_ADSB_VEHICLE:
         CHECK_PAYLOAD_SIZE(ADSB_VEHICLE);
         plane.adsb.send_adsb_vehicle(chan);
diff --git a/ArduPlane/Plane.h b/ArduPlane/Plane.h
index 825b0bba18..1b3dbfc8ad 100644
--- a/ArduPlane/Plane.h
+++ b/ArduPlane/Plane.h
@@ -792,7 +792,6 @@ private:
     void send_fence_status(mavlink_channel_t chan);
     void send_servo_out(mavlink_channel_t chan);
     void send_wind(mavlink_channel_t chan);
-    void send_rpm(mavlink_channel_t chan);
 
     void send_aoa_ssa(mavlink_channel_t chan);