Middleweight spaceship

	Middleweight spaceship
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Pattern type	Spaceship
Family	XWSS
Number of cells	11
Bounding box	6×4
Frequency class	13.2
Direction	Orthogonal
Period	4
Mod	2
Speed	c/2
Speed (unsimplified)	2c/4
Heat	15
Discovered by	John Conway
Year of discovery	1970
Rules
Outer-totalistic rules	B3/S23 – B3468/S238
Important rules	Conway Life, HighLife
# of rules	24 = 16
Isotropic rules	B3aij/S2eik3aijnr – B2n345-a67e8/S1e234-aw5-ijy6-k7e8
Glider synthesis
Fewest gliders	3
Catagolue-generated RLE	mwss_synth.rle
Uploaded synthesis RLE	mwss_synth.rle
Pattern files
Plaintext	mwss.cells
RLE	mwss.rle
Identifiers
apgcode	xq4_27dee6
Pentadecathlon ID	11P4H2V0.1

The middleweight spaceship (commonly abbreviated to MWSS) or (rarely) medium fish is the third most common spaceship after the glider and lightweight spaceship. It was found by John Conway in 1970 and travels at c/2 orthogonally. It can support various non-standard components, such as pushalong 1.

Commonness

The MWSS occured about one fourth as commonly as the LWSS in soups investigated by Achim Flammenkamp.[1] It is also the twenty-third most common object on Adam P. Goucher's Catagolue.[2]

gollark: Perhaps we should just move all the foes to one page with a comparison table.

gollark: Please finish the ogre page.

gollark: There is a config option.

gollark: Just disable registration and do it manually.

gollark: And it only lasts 15 minutes.

"Spontaneous appeared Spaceships out of Random Dust". Achim Flammenkamp (December 9, 1995). Retrieved on August 18, 2011.
Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.

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