x = 15, y = 12, rule = B36/S23
bb3o$bobbo$o3bo$obbo$3o$$12b3o$12bobo$12b3o$5bo$5bo$5bo!
The bomber.
This is a glide-reflective period 48 c/6 diagonal spaceship.
It arises from a replicator and a blinker.
It creates a large cloud of smoke, called a "bomb",
which is very useful for perturbing other things.
Nathan Thompson, 1994