diff --git a/models/zephyr_with_ardupilot/model.sdf b/models/zephyr_with_ardupilot/model.sdf
index 20dc9883..08ba7b13 100644
--- a/models/zephyr_with_ardupilot/model.sdf
+++ b/models/zephyr_with_ardupilot/model.sdf
@@ -19,7 +19,7 @@
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0 -0.1 0</cp>
       <area>0.50</area>
       <air_density>1.2041</air_density>
@@ -37,7 +37,7 @@
       <alpha_stall>0.6391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0.7 0.20 0</cp>
       <area>0.10</area>
       <air_density>1.2041</air_density>
@@ -57,7 +57,7 @@
       <alpha_stall>0.6391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>-0.7 0.20 0</cp>
       <area>0.10</area>
       <air_density>1.2041</air_density>
@@ -77,7 +77,7 @@
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>-0.76 0.30 0.025</cp>
       <area>0.12</area>
       <air_density>1.2041</air_density>
@@ -95,7 +95,7 @@
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0.76 0.30 0.025</cp>
       <area>0.12</area>
       <air_density>1.2041</air_density>
diff --git a/models/zephyr_with_parachute/model.sdf b/models/zephyr_with_parachute/model.sdf
index 9c207d13..4a5be9d1 100644
--- a/models/zephyr_with_parachute/model.sdf
+++ b/models/zephyr_with_parachute/model.sdf
@@ -47,11 +47,11 @@
       <a0>0.13</a0>
       <cla>3.7</cla>
       <cda>0.06417112299</cda>
-      <cma>-1.8</cma>
+      <cma>0.0</cma>
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0 -0.1 0</cp>
       <area>0.50</area>
       <air_density>1.2041</air_density>
@@ -65,11 +65,11 @@
       <a0>0.15</a0>
       <cla>6.8</cla>
       <cda>0.06417112299</cda>
-      <cma>-1.8</cma>
+      <cma>0.0</cma>
       <alpha_stall>0.6391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0.7 0.20 0</cp>
       <area>0.10</area>
       <air_density>1.2041</air_density>
@@ -85,11 +85,11 @@
       <a0>0.15</a0>
       <cla>6.8</cla>
       <cda>0.06417112299</cda>
-      <cma>-1.8</cma>
+      <cma>0.0</cma>
       <alpha_stall>0.6391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>-0.7 0.20 0</cp>
       <area>0.10</area>
       <air_density>1.2041</air_density>
@@ -105,11 +105,11 @@
       <a0>0.0</a0>
       <cla>4.752798721</cla>
       <cda>0.6417112299</cda>
-      <cma>-1.8</cma>
+      <cma>0.0</cma>
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>-0.76 0.30 0.025</cp>
       <area>0.12</area>
       <air_density>1.2041</air_density>
@@ -123,11 +123,11 @@
       <a0>0.0</a0>
       <cla>4.752798721</cla>
       <cda>0.6417112299</cda>
-      <cma>-1.8</cma>
+      <cma>0.0</cma>
       <alpha_stall>0.3391428111</alpha_stall>
       <cla_stall>-3.85</cla_stall>
       <cda_stall>-0.9233984055</cda_stall>
-      <cma_stall>0</cma_stall>
+      <cma_stall>0.0</cma_stall>
       <cp>0.76 0.30 0.025</cp>
       <area>0.12</area>
       <air_density>1.2041</air_density>
@@ -142,7 +142,7 @@
       <alpha_stall>1.4</alpha_stall>
       <cla>4.2500</cla>
       <cda>0.10</cda>
-      <cma>0.00</cma>
+      <cma>0.0</cma>
       <cla_stall>-0.025</cla_stall>
       <cda_stall>0.0</cda_stall>
       <cma_stall>0.0</cma_stall>
@@ -160,7 +160,7 @@
       <alpha_stall>1.4</alpha_stall>
       <cla>4.2500</cla>
       <cda>0.10</cda>
-      <cma>0.00</cma>
+      <cma>0.0</cma>
       <cla_stall>-0.025</cla_stall>
       <cda_stall>0.0</cda_stall>
       <cma_stall>0.0</cma_stall>