Coe ship

The Coe ship is the first known period-16 c/2 orthogonal spaceship, discovered by Tim Coe in October 1995. It consists of a lightweight spaceship stabilizing a sparky, modified heavyweight spaceship.

Coe ship
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Pattern type Puffer engine
Spaceship
Number of cells 28
Bounding box 17×12
Frequency class 43.4
Direction Orthogonal
Period 16
Mod 16
Speed c/2
Speed (unsimplified) 8c/16
Heat 38.0
Discovered by Tim Coe
Year of discovery 1995

The Coe ship appeared in an asymmetric soup found by apgsearch in December 2015,[1] making it the first naturally occurring non-period-4 spaceship. A second Coe ship appeared on Catagolue in June 2016, and four more shortly after. Currently it is the 35th most common naturally occurring spaceship, being more common than HWSS on HWSS 8, but less common than MWSS on HWSS 13.[2]

A 7-glider synthesis of the spaceship was discovered by 2718281828 on December 8, 2017.[3]

The Coe ship can be used as a puffer engine because it produces a long back spark, which leads to puffers and rakes, as shown below.[4]

Coe ship powering a backward rake
Coe ship powering a forward rake
Coe ship powering a block puffer
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gollark: In general.
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gollark: That is quite a small amount, I agree.
gollark: Anyway, this story has inspired me to update the Server header on osmarks.tk.

See also

References
  1. Apple Bottom (December 27, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on July 4, 2019.
  3. 2718281828 (December 8, 2017). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  4. Jason Summers' pattern collections. Retrieved on March 24, 2016.
  • 28P16H8V0.1 at Heinrich Koenig's Game of Life Object Catalogs
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