Fix aircraft husk crash velocity

This fixes the long glide time aircraft husks had when they were shot down. They are falling down to earth much faster now and the distance covered matches that from release-20150614

mods/ra/rules/defaults.yaml

@@ -612,6 +612,7 @@
 	FallsToEarth:
 		Spins: False
 		Moves: True
+		Velocity: 86
 
 ^HelicopterHusk:
 	Inherits: ^BasicHusk