diff --git a/SplitBit Test Manual.md b/SplitBit Test Manual.md
index 44c2c57..a597f08 100644
--- a/SplitBit Test Manual.md	
+++ b/SplitBit Test Manual.md	
@@ -83,6 +83,11 @@ somewhere else, and the flight had to be flown again for nothing. A demo is a re
 somebody *did*, and on a machine one person is playing the number it arrived on is not part of
 that.
 
+`Tests/input/landerDemo.pad` is the first fixture that was **played rather than written**: a
+cyan-to-red cargo delivery in Lunar Porter, twenty five seconds of steering, recorded with
+`--record-pad`. `video.sh` replays it and checks that the base answers with a *D*, which only
+a delivery does. It is the only check that a cargo ever reaches anywhere.
+
 It exists because some inputs cannot sensibly be written by hand. Flying a lander from one
 base to another is a few hundred frames of steering that has to arrive somewhere eight cells
 wide, and several attempts at authoring one by hand got within two columns and no closer. That
diff --git a/start.keys b/Tests/input/landerDemo.keys
similarity index 100%
rename from start.keys
rename to Tests/input/landerDemo.keys
diff --git a/Tests/input/landerDemo.pad b/Tests/input/landerDemo.pad
new file mode 100644
index 0000000..f64b7d3
Binary files /dev/null and b/Tests/input/landerDemo.pad differ
diff --git a/Tests/video.sh b/Tests/video.sh
index 4549abb..d4c830d 100755
--- a/Tests/video.sh
+++ b/Tests/video.sh
@@ -1758,6 +1758,35 @@ UNSAID="$(countColour "$BUILD/unsaid.ppm" f0f0f0)"
     && result ok "and opening the throttle wipes it" "the line went with the moment" \
     || result no "and opening the throttle wipes it" "$UNSAID pixels of it still there"
 
+# ---- A delivery, flown by hand and kept ----
+#
+# THIS ONE WAS PLAYED RATHER THAN WRITTEN. Cyan base to red base, twenty five seconds of
+# steering recorded with --record-pad and replayed here. Several attempts at authoring a
+# flight like it by hand got within two columns and no closer; that is a piloting exercise
+# rather than a test, and playing it once is the whole answer.
+#
+# What is checked is the FIRST LETTER of the message the base gives back. Delivered, Loaded,
+# Nowhere and Not are 30, 22, 37 and 37 pixels of white in that cell, so a D is a delivery and
+# nothing else is. Counting the whole message would pass on any message of the same length;
+# comparing the picture would pass on nothing at all the next time a font changes.
+#
+# It is the only check that a cargo ever reaches anywhere, and it is the reason the recorder
+# exists.
+timeout 60 "$EMU" --fast --cycles 26000000 --keyboard "$ROOT/Tests/input/landerDemo.keys" \
+    --pad "$ROOT/Tests/input/landerDemo.pad" --screen "$BUILD/demo.ppm" \
+    --disk "$ROOT/Tests/build/disks/cosmos.img" --ram-disk 2048 \
+    "$BUILD/cosmos.bin" > "$BUILD/demo.out" 2>&1 || true
+FIRST="$(python3 -c "
+d = open('$BUILD/demo.ppm', 'rb').read()
+px = d[d.index(b'255\n') + 4:]
+w, white = 320, bytes.fromhex('f0f0f0')
+print(sum(1 for x in range(8) for y in range(8, 16)
+          if px[(y * w + x) * 3:(y * w + x) * 3 + 3] == white))
+" 2>/dev/null || echo -1)"
+[ "$FIRST" = "30" ] \
+    && result ok "a flown delivery arrives" "the base answered with a D" \
+    || result no "a flown delivery arrives" "$FIRST pixels in the first cell, and a D is 30"
+
 # ---- The landing pads, carved and coloured ----
 #
 # A random walk does not leave flat ground and a lander wants some, so four pads are carved
diff --git a/demo.pad b/demo.pad
deleted file mode 100644
index 0142fcb..0000000
Binary files a/demo.pad and /dev/null differ