diff --git a/toroid.html b/toroid.html
index 4f00232..fe0e567 100644
--- a/toroid.html
+++ b/toroid.html
@@ -37,6 +37,7 @@
                         <option value="75">75 [5000]</option>
                         <option value="78">78 [2300]</option>
                         <option value="77">77 [2000]</option>
+                        <option value="31">31 [1500]</option>
                         <option value="79">79 [1400]</option>
                         <option value="43" selected='true'>43 [800]</option>
                         <option value="80">80 [600]</option>
@@ -389,9 +390,9 @@
                 },
                 '31' : {
                     size : {
-                        'FT240' : { PN:'2631803802', A:61.0,  B:35.55, C:12.7, W:118.0, H:0.09,  R : {1:12, 5:28,  10:40,  25:63,  100:119, 250:215} },
-                        'FT200' : { PN:'2631626202', A:50.80, B:25.40, C:38.1, W:278.0, H:0.11,  R : {1:40, 5:103, 10:140, 25:215, 100:365, 250:290} },
-                        'FT114' : { PN:'2631801202', A:29.00, B:19.00, C:13.85, W:25.0,  H:0.17, R : {1:10, 5:24, 10:31, 25:49, 100:88, 250:130} },
+                        'FT240' : { PN:'2631803802', A:61.0,  B:35.55, C:12.7, W:118.0, CC:9.1627, le:14.5, Ae:1.58,  Ve:22.8, Al:1371.0  },
+                        'FT200' : { PN:'2631626202', A:50.80, B:25.40, C:38.1, W:278.0, CC:2.3791, le:11.1, Ae:4.65,  Ve:51.432, Al:5282.0  },
+                        'FT114' : { PN:'2631801202', A:29.00, B:19.00, C:13.85, W:25.0, CC:1.0795, le:7.33, Ae:0.679,  Ve:4.977, Al:1164.0  },
                     },
                     mat     : "MnZn",
                     mu_i    : 1500,