diff --git a/libraries/AC_AttitudeControl/AC_AttitudeControl.cpp b/libraries/AC_AttitudeControl/AC_AttitudeControl.cpp
index a460f53785af88cf050681a7721485a5468b60e4..7fb570010c3322e0051ecf7aff29f1f4bac6b0d7 100644
--- a/libraries/AC_AttitudeControl/AC_AttitudeControl.cpp
+++ b/libraries/AC_AttitudeControl/AC_AttitudeControl.cpp
@@ -39,8 +39,7 @@ const AP_Param::GroupInfo AC_AttitudeControl::var_info[] PROGMEM = {
     // @DisplayName: Acceleration Max for Roll/Pitch
     // @Description: Maximum acceleration in roll/pitch axis
     // @Units: Centi-Degrees/Sec/Sec
-    // @Range: 20000 100000
-    // @Increment: 100
+    // @Values: 36000:Very Soft, 54000:Soft, 90000:Medium, 126000:Crisp, 162000:Very Crisp
     // @User: Advanced
     AP_GROUPINFO("ACCEL_RP_MAX", 3, AC_AttitudeControl, _accel_rp_max, AC_ATTITUDE_CONTROL_ACCEL_RP_MAX_DEFAULT),
 
diff --git a/libraries/AC_AttitudeControl/AC_AttitudeControl.h b/libraries/AC_AttitudeControl/AC_AttitudeControl.h
index 21ad6df0db5e464a659eec9e045d4f75f3160da9..85f94ff8eda56eced417b8004252e050da74783d 100644
--- a/libraries/AC_AttitudeControl/AC_AttitudeControl.h
+++ b/libraries/AC_AttitudeControl/AC_AttitudeControl.h
@@ -21,7 +21,7 @@
 #define AC_ATTITUDE_CONTROL_RATE_RP_MAX_DEFAULT         18000   // maximum rotation rate in roll/pitch axis requested by angle controller used in stabilize, loiter, rtl, auto flight modes
 #define AC_ATTITUDE_CONTROL_RATE_Y_MAX_DEFAULT          18000   // maximum rotation rate on yaw axis requested by angle controller used in stabilize, loiter, rtl, auto flight modes
 #define AC_ATTITUDE_CONTROL_SLEW_YAW_DEFAULT            1000    // constraint on yaw angle error in degrees.  This should lead to maximum turn rate of 10deg/sed * Stab Rate P so by default will be 45deg/sec.
-#define AC_ATTITUDE_CONTROL_ACCEL_RP_MAX_DEFAULT        54000   // default maximum acceleration for roll/pitch axis in centi-degrees/sec/sec
+#define AC_ATTITUDE_CONTROL_ACCEL_RP_MAX_DEFAULT        90000   // default maximum acceleration for roll/pitch axis in centi-degrees/sec/sec
 #define AC_ATTITUDE_CONTROL_ACCEL_Y_MAX_DEFAULT         18000   // default maximum acceleration for yaw axis in centi-degrees/sec/sec
 
 #define AC_ATTITUDE_RATE_CONTROLLER_TIMEOUT             1.0f    // body-frame rate controller timeout in seconds