diff --git a/flix/quaternion.h b/flix/quaternion.h
index 55f183c..115eeab 100644
--- a/flix/quaternion.h
+++ b/flix/quaternion.h
@@ -24,11 +24,6 @@ public:
 		return Quaternion(cos2, a * sinNorm, b * sinNorm, c * sinNorm);
 	}
 
-	static Quaternion fromAngularRates(float x, float y, float z)
-	{
-		return Quaternion::fromAxisAngle(x, y, z, sqrt(x * x + y * y + z * z));
-	}
-
 	static Quaternion fromAngularRates(const Vector& rates)
 	{
 		if (rates.zero()) {
diff --git a/flix/rc.ino b/flix/rc.ino
index bed076d..5a49563 100644
--- a/flix/rc.ino
+++ b/flix/rc.ino
@@ -5,6 +5,7 @@
 
 #include <SBUS.h>
 
+// NOTE: this should be changed to the actual calibration values
 const uint16_t channelNeutral[] = {995, 883, 200, 972, 512, 512};
 const uint16_t channelMax[] = {1651, 1540, 1713, 1630, 1472, 1472};