diff --git a/Models/Engines/Models/CFM56.ac b/Models/Engines/Models/CFM56.ac
index e69ea775..b66f7c44 100644
--- a/Models/Engines/Models/CFM56.ac
+++ b/Models/Engines/Models/CFM56.ac
@@ -2,6 +2,7 @@ AC3Db
 MATERIAL "DefaultWhite" rgb 1.000 1.000 1.000  amb 0.200 0.200 0.200  emis 0.000 0.000 0.000  spec 0.500 0.500 0.500  shi 10 trans 0.000
 MATERIAL "engine-CFM56" rgb 0.720 0.720 0.720  amb 1.000 1.000 1.000  emis 0.000 0.000 0.000  spec 0.873 0.873 0.900  shi 25 trans 0.000
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+MATERIAL "engine-CFM56.fanTransparency" rgb 0.720 0.720 0.720  amb 1.000 1.000 1.000  emis 0.000 0.000 0.000  spec 0.873 0.873 0.900  shi 25 trans 0.200
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diff --git a/Models/Engines/Models/IAEV2500.ac b/Models/Engines/Models/IAEV2500.ac
index 9044ab10..79b74c11 100644
--- a/Models/Engines/Models/IAEV2500.ac
+++ b/Models/Engines/Models/IAEV2500.ac
@@ -1,6 +1,7 @@
 AC3Db
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+MATERIAL "engine-IAEV-2500.fanTransparency" rgb 0.720 0.720 0.720  amb 1.000 1.000 1.000  emis 0.000 0.000 0.000  spec 0.900 0.900 0.900  shi 25 trans 0.200
 OBJECT world
 name "Blender_exporter_v2.26__IAEV2500.ac"
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 143 0.661158 0.611106
 144 0.675382 0.606791
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 130 0.675382 0.755527
 131 0.661158 0.751212
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 157 0.743791 0.734775
 158 0.732301 0.744205
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 144 0.675382 0.606791
 145 0.690175 0.605334
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 131 0.661158 0.751212
 132 0.648049 0.744205
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 158 0.732301 0.744205
 159 0.719191 0.751212
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 145 0.690175 0.605334
 146 0.704967 0.606791
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 132 0.648049 0.744205
 133 0.636559 0.734775
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 159 0.719191 0.751212
 160 0.704967 0.755527
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 146 0.704967 0.606791
 147 0.719192 0.611106
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 133 0.636559 0.734775
 134 0.627129 0.723285
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 160 0.704967 0.755527
 129 0.690175 0.756984
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 147 0.719192 0.611106
 148 0.732301 0.618113
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 134 0.627129 0.723285
 135 0.620122 0.710176
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 148 0.732301 0.618113
 149 0.743791 0.627543
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 135 0.620122 0.710176
 136 0.615807 0.695952
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 149 0.743791 0.627543
 150 0.753221 0.639033
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 136 0.615807 0.695952
 137 0.61435 0.681159
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 150 0.753221 0.639033
 151 0.760228 0.652142
 128 0.690175 0.681159
 SURF 0X0
-mat 0
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 refs 3
 137 0.61435 0.681159
 138 0.615807 0.666366