diff --git a/pr/entdecker/GNUmakefile b/pr/entdecker/GNUmakefile
new file mode 100644
index 0000000..7c5e6f4
--- /dev/null
+++ b/pr/entdecker/GNUmakefile
@@ -0,0 +1,23 @@
+# what's where?
+include GNUmakevars
+
+
+all: \
+	test-impulstriebwerk.ppm \
+	test-aussenstromgravojet.ppm \
+	test-entdecker.ppm \
+
+
+
+%.ppm: %.pov
+	$(POVRAY) +L$(POVINC) +V -I$< +D +FP
+
+%.pov: make%
+	$< > $@
+
+test-entdecker.ppm: test-entdecker.pov entdecker.pov
+test-impulstriebwerk.ppm: test-impulstriebwerk.pov impulstriebwerk.pov
+test-aussenstromgravojet.ppm: test-aussenstromgravojet.pov aussenstromgravojet.pov
+
+%.gif: %.ppm
+	ppmquant 256 $< | ppmtogif > $@
diff --git a/pr/entdecker/Notes b/pr/entdecker/Notes
new file mode 100644
index 0000000..eaf2aeb
--- /dev/null
+++ b/pr/entdecker/Notes
@@ -0,0 +1,16 @@
+ZYHM'RANTON:
+    Durchmesser: 1500 m
+    Begleitschutz:
+	8 500m-Kreuzer:
+
+    Beiboote:
+	14 200m-Kreuzer.
+
+500m-Kreuzer:
+    Beiboote:
+	4  150m-Kreuzer
+	2  100m-Kreuzer
+
+800m-Kreuzer:
+    Beiboote:
+	8 150m-Kreuzer
diff --git a/pr/entdecker/aussenstromgravojet.pov b/pr/entdecker/aussenstromgravojet.pov
new file mode 100644
index 0000000..9b1cc62
--- /dev/null
+++ b/pr/entdecker/aussenstromgravojet.pov
@@ -0,0 +1,57 @@
+#declare extra = 2;
+#declare finne1 = 
+    bicubic_patch {
+	type 1
+	flatness 0.01
+	u_steps 4
+	v_steps 4
+	<60, 20, 0>, < 60, 20, 0>, <60, 20, 0>, <60, 20, 0>,
+	<50, 20, 0>, < 50, 10, 1>, <50, 15, 1>, <50, 20, 0>,
+	<30, 10, 0>, < 25, 35, 2>, <22, 47, 2>, <20, 60, 0>,
+	<20,  0, 0>, <-20, 40, 2>, <-30, 60, 2>, <-50, 80, 0>
+
+	//texture { pigment { color Blue }}
+    }
+#declare finne = 
+    union {
+	object {
+	    finne1
+	    scale <1, 1, 1>
+	}
+	object {
+	    finne1
+	    scale <1, 1, -1>
+	}
+    }
+
+#declare aussenstromgravojet = 
+    union {
+	bicubic_patch {
+	    type 1
+	    flatness 0.01
+	    u_steps 4
+	    v_steps 4
+	    <40,   0,   0>, <40,   0,   0>, <40,   0,   0>, <40,   0,   0>,
+	    <20,  30, -20>, <40,  30, -20>, <40,  30, +20>, <20,  30, +20>,
+	    < 0,  80, -20>, <20,  80, -20>, <20,  80, +20>, < 0,  80, +20>,
+	    < 0, 100,   0>, < 0, 100,   0>, < 0, 100,   0>, < 0, 100,   0>
+
+	    //texture { pigment { color Green }}
+	}
+	bicubic_patch {
+	    type 1
+	    flatness 0.01
+	    u_steps 4
+	    v_steps 4
+	    <40,   0,   0>, < 40,   0,   0>, < 40,   0,   0>, <40,   0,   0>,
+	    <20,  30, -20>, <  0,  30, -20>, <  0,  30, +20>, <20,  30, +20>,
+	    < 0,  80, -20>, <-20,  80, -20>, <-20,  80, +20>, < 0,  80, +20>,
+	    < 0, 100,   0>, <  0, 100,   0>, <  0, 100,   0>, < 0, 100,   0>
+
+	    //texture { pigment { color Yellow }}
+	}
+	object {finne}
+	texture { Ynkelonium_Texture }
+    }
+    
+// vim:tw=80
diff --git a/pr/entdecker/entdecker.pov b/pr/entdecker/entdecker.pov
new file mode 100644
index 0000000..fb3cb92
--- /dev/null
+++ b/pr/entdecker/entdecker.pov
@@ -0,0 +1,49 @@
+#include "arkon_texture.pov"
+
+#declare hangar_neg = 
+    difference {
+	cone {
+	    <0, 0, 0>, 900,
+	    <0, 115, 0>, 900
+	}
+	cone {
+	    <0, 0, 0>, 900-140,
+	    <0, 115, 0>, 900-140
+	}
+    }
+
+#declare entdecker = 
+    union {
+	difference {
+	    sphere {
+		<0, 0, 0>, 900
+	    }
+	    object {
+		hangar_neg
+		translate <0, 10, 0>
+	    }
+	    object {
+		hangar_neg
+		translate <0, -10-115, 0>
+	    }
+	    texture { pigment { color Red } } 
+	}
+	intersection {
+	    sphere {
+		<0, 0, 0>, 901
+	    }
+	    union {
+		cone {
+		    <0, 500, 0>, 900,
+		    <0, 600, 0>, 900
+		}
+		cone {
+		    <0, -500, 0>, 900,
+		    <0, -600, 0>, 900
+		}
+	    }
+	    texture { pigment { color Yellow } } 
+	}
+    }
+
+
diff --git a/pr/entdecker/impulstriebwerk.pov b/pr/entdecker/impulstriebwerk.pov
new file mode 100644
index 0000000..4853ab3
--- /dev/null
+++ b/pr/entdecker/impulstriebwerk.pov
@@ -0,0 +1,37 @@
+#declare extra = 2;
+#declare impulstriebwerk = 
+    difference {
+	cone {
+	    <35, 0, 0>, 35
+	    <35, 100, 0>, 35
+	    texture { pigment { color Blue }}
+	}
+	cone {
+	    <0, -extra, 0>, extra
+	    <0, 0, 0>, 0
+	    matrix <
+		 35, -35, 0,
+		-25, -55, 0,
+		  0,   0, 35,
+		 10,  10,  0
+	    >
+	    texture { pigment { color Yellow }}
+	}
+	sphere {
+	    <10, 10, 0>
+	    8
+	    texture { pigment { color Yellow }}
+	}
+	cone {
+	    <10, 10, 0> 4
+	    <0, 10, 0> 4
+	    texture { pigment { color Yellow }}
+	}
+	#ifdef (Debug)
+	box {
+	    <0, 0, 0>
+	    <70, 100, 70>
+	    texture { pigment { color Red }}
+	}
+	#end
+    }
diff --git a/pr/entdecker/povray.ini b/pr/entdecker/povray.ini
new file mode 100644
index 0000000..1febcbf
--- /dev/null
+++ b/pr/entdecker/povray.ini
@@ -0,0 +1,5 @@
+-A
++QR
++HTP
++fp +w400 +h300 +d1
+display_gamma = 2.2
diff --git a/pr/entdecker/skizzen.obj b/pr/entdecker/skizzen.obj
new file mode 100644
index 0000000..ed27cd3
--- /dev/null
+++ b/pr/entdecker/skizzen.obj
@@ -0,0 +1,45 @@
+%TGIF 4.1.25
+state(0,37,100.000,0,171,1,16,1,9,1,1,0,0,0,0,1,0,'Courier',0,80640,0,0,1,5,0,1,1,1,0,16,0,0,1,1,1,1,1088,1408,1,0,2880,0).
+%
+% @(#)$Header$
+% %W%
+%
+unit("1 pixel/pixel").
+color_info(11,65535,0,[
+	"magenta", 27046, 27046, 27046, 65535, 0, 65535, 1,
+	"red", 19764, 19764, 19764, 65535, 0, 0, 1,
+	"green", 38488, 38488, 38488, 0, 65535, 0, 1,
+	"blue", 7281, 7281, 7281, 0, 0, 65535, 1,
+	"yellow", 58253, 58253, 58253, 65535, 65535, 0, 1,
+	"pink", 55132, 55132, 55132, 65535, 49344, 52171, 1,
+	"cyan", 45770, 45770, 45770, 0, 65535, 65535, 1,
+	"CadetBlue", 35368, 35368, 35368, 24415, 40606, 41120, 1,
+	"white", 65535, 65535, 65535, 65535, 65535, 65535, 1,
+	"black", 0, 0, 0, 0, 0, 0, 1,
+	"DarkSlateGray", 17684, 17684, 17684, 12079, 20303, 20303, 1
+]).
+script_frac("0.6").
+fg_bg_colors('black','white').
+page(1,"",1,'').
+oval('black','',50,50,950,950,0,1,1,0,0,0,0,0,0,'1',0,[
+]).
+poly('black','',2,[
+	165,200,840,200],0,1,1,1,0,0,0,0,0,0,0,'1',0,0,
+    "0","",[
+    0,8,3,0,'8','3','0'],[0,8,3,0,'8','3','0'],[
+]).
+poly('black','',2,[
+	125,250,880,250],0,1,1,3,0,0,0,0,0,0,0,'1',0,0,
+    "0","",[
+    0,8,3,0,'8','3','0'],[0,8,3,0,'8','3','0'],[
+]).
+poly('black','',4,[
+	50,495,120,495,120,435,55,435],0,1,1,4,0,0,0,0,0,0,0,'1',0,0,
+    "0","",[
+    0,8,3,0,'8','3','0'],[0,8,3,0,'8','3','0'],[
+]).
+poly('black','',4,[
+	50,505,120,505,120,565,55,565],0,1,1,5,0,0,0,0,0,0,0,'1',0,0,
+    "0","",[
+    0,8,3,0,'8','3','0'],[0,8,3,0,'8','3','0'],[
+]).
diff --git a/pr/entdecker/test-aussenstromgravojet.pov b/pr/entdecker/test-aussenstromgravojet.pov
new file mode 100644
index 0000000..d1014cb
--- /dev/null
+++ b/pr/entdecker/test-aussenstromgravojet.pov
@@ -0,0 +1,75 @@
+#include "colors.inc"
+#include "shapes.inc"
+#include "textures.inc"
+#include "metals.inc"
+#include "stones.inc"
+#include "ynkelonium_texture.pov"
+
+global_settings {
+        assumed_gamma 1.0
+        ambient_light rgb<0.5, 0.5, 0.5>
+}
+//background { color rgb<0.2, 0.4, 0.8>  }
+light_source {
+    <2000, 2000, 2000>
+    color White
+}
+
+// #declare Camera_Ortho = 0;
+#declare Camera_Triebwerk = 1;
+
+#ifdef (Camera_Triebwerk)
+camera {
+        location <165, 270, 100>
+        look_at <35, 70, 0>
+	angle 30
+}
+#end
+
+#ifdef (Camera_Ortho)
+camera {
+        location <35, 50, 200>
+        look_at <35, 50, 0>
+	orthographic
+}
+#end
+
+#ifdef (Camera_Totale)
+camera {
+        location <2650, 1800, 0>
+        look_at <0, 800, 0>
+}
+#end
+
+#include "aussenstromgravojet.pov"
+
+object {
+    aussenstromgravojet
+    translate <0, 0, 0>
+}
+
+plane {
+    <0, 0, 1>, 0
+    pigment {
+	checker color White*0.7, color White*0.5
+    }
+    scale 10
+    translate <0, 0, -100>
+}
+
+plane {
+    <0, 1, 0>, 0
+    pigment {
+	checker color White*0.7, color White*0.5
+    }
+    scale 10
+    translate <0, 0, 0>
+}
+
+sphere {
+    <0, 0, 0> 900
+    texture { Ynkelonium_Texture }
+    //texture { pigment { color Red }}
+    translate <-730, -500, 0>
+}
+
diff --git a/pr/entdecker/test-entdecker.pov b/pr/entdecker/test-entdecker.pov
new file mode 100644
index 0000000..a41672e
--- /dev/null
+++ b/pr/entdecker/test-entdecker.pov
@@ -0,0 +1,48 @@
+#include "colors.inc"
+#include "shapes.inc"
+#include "textures.inc"
+#include "metals.inc"
+#include "stones.inc"
+
+global_settings {
+        assumed_gamma 1.0
+        ambient_light rgb<0.5, 0.5, 0.5>
+}
+//background { color rgb<0.2, 0.4, 0.8>  }
+light_source {
+    <2000, 2000, 2000>
+    color White
+}
+
+#declare Camera_Totale = 1;
+
+#ifdef (Camera_Triebwerk)
+camera {
+        location <1650, 1700, 0>
+        look_at <1250, 1300, 0>
+}
+#end
+
+#ifdef (Camera_Totale)
+camera {
+        location <2650, 1800, 0>
+        look_at <0, 800, 0>
+}
+#end
+
+#include "entdecker.pov"
+
+object {
+    entdecker
+    translate <0, 930, 0>
+}
+
+
+#if (0)
+plane {
+    <0, 1, 0>, 0
+    pigment {
+	checker color White*0.7, color White*0.5
+    }
+}
+#end
diff --git a/pr/entdecker/test-impulstriebwerk.pov b/pr/entdecker/test-impulstriebwerk.pov
new file mode 100644
index 0000000..8187973
--- /dev/null
+++ b/pr/entdecker/test-impulstriebwerk.pov
@@ -0,0 +1,67 @@
+#include "colors.inc"
+#include "shapes.inc"
+#include "textures.inc"
+#include "metals.inc"
+#include "stones.inc"
+
+global_settings {
+        assumed_gamma 1.0
+        ambient_light rgb<0.5, 0.5, 0.5>
+}
+//background { color rgb<0.2, 0.4, 0.8>  }
+light_source {
+    <2000, 2000, 2000>
+    color White
+}
+
+// #declare Camera_Ortho = 0;
+#declare Camera_Triebwerk = 1;
+
+#ifdef (Camera_Triebwerk)
+camera {
+        location <165, 270, 100>
+        look_at <35, 70, 0>
+	angle 30
+}
+#end
+
+#ifdef (Camera_Ortho)
+camera {
+        location <35, 50, 200>
+        look_at <35, 50, 0>
+	orthographic
+}
+#end
+
+#ifdef (Camera_Totale)
+camera {
+        location <2650, 1800, 0>
+        look_at <0, 800, 0>
+}
+#end
+
+#include "impulstriebwerk.pov"
+
+object {
+    impulstriebwerk
+    translate <0, 0, 0>
+}
+
+plane {
+    <0, 0, 1>, 0
+    pigment {
+	checker color White*0.7, color White*0.5
+    }
+    scale 10
+    translate <0, 0, -100>
+}
+
+plane {
+    <0, 1, 0>, 0
+    pigment {
+	checker color White*0.7, color White*0.5
+    }
+    scale 10
+    translate <0, 0, 0>
+}
+
diff --git a/pr/entdecker/ynkelonium_texture.pov b/pr/entdecker/ynkelonium_texture.pov
new file mode 100644
index 0000000..0788a0a
--- /dev/null
+++ b/pr/entdecker/ynkelonium_texture.pov
@@ -0,0 +1,3 @@
+#include "metals.inc"
+#declare Ynkelonium_Texture =
+        texture {pigment {color <1, 0.2, 0.6>} finish {F_MetalB}}