3engine Cordership
3engine Cordership  
View static image  
Pattern type  Spaceship  

Family  Cordership  
Number of cells  149  
Bounding box  58×65  
Direction  Diagonal  
Period  96  
Mod  48  
Speed  c/12  
Heat  156.1  
Discovered by  Paul Tooke  
Year of discovery  2004  
 
 

The 3engine Cordership is a diagonal c/12 spaceship that was discovered by Paul Tooke on January 12, 2004. Until the 2engine Cordership was found, it was the Cordership that uses the fewest number of known possible switch engines. Despite this, the 4engine Cordership is smaller in terms of minimum population (the 2engine Cordership beating both).
David Bell discovered in 2005 that the 3engine Cordership can be used to turn a lightweight spaceship 90 degrees as shown below.^{[1]} It could be constructed with 15 gliders, and Tooke created a gun for this spaceship only a week after its original construction (see 3engine Cordership gun). In March 2017 Luka Okanishi discovered a threeglider synthesis for a switch engine, which reduced the recipe to only 11 gliders.^{[2]}
The 3engine Cordership can easily be destroyed by three eater 2s and four blocks, as shown below. This cleanup reaction was found by Jason Summers.
Incremental construction
Dave Greene discovered a glider synthesis for upgrading a switch engine to a wing, which can be repeated to form the complete Cordership. Adam P. Goucher then built a Herschel conduit to convert a glider into a 3engine Cordership.^{[3]}
Image gallery
See also
References
 ↑ "New Compact Corderships". Dave Greene (June 18, 2005). Retrieved on June 10, 2009.
 ↑ "Re: Thread For Your Accidental Discoveries". Luka Okanishi (March 12, 2017). Retrieved on March 13, 2017.
 ↑ "First complete glidertoCordership converter". Dave Greene (February 7, 2009). Retrieved on June 15, 2009.
External links
 3engine Cordership at Adam P. Goucher's Catagolue (extended)
 Patterns
 Patterns with 149 cells
 Patterns found by Paul Tooke
 Patterns found in 2004
 Patterns that can be constructed with 11 gliders
 Spaceships
 Spaceships with period 96
 Diagonal spaceships
 Spaceships with speed c/12
 Spaceships with heat 156
 Cordership variants
 Spaceships with mod 48
 Glide symmetric spaceships