LWSS on HWSS 1
LWSS on HWSS 1  
View static image  
Pattern type  Flotilla Spaceship  

Family  XWSS  
Number of cells  20  
Bounding box  7 × 12  
Frequency class  37.6  
Direction  Orthogonal  
Period  4 (mod: 4)  
Speed  c/2  2c/4  
Heat  29.0  
Kinetic symmetry  n  
Discovered by  Unknown  
Year of discovery  Unknown  
 
 
 

LWSS on HWSS 1 is a standard spaceship flotilla consisting of a lightweight spaceship and heavyweight spaceship reacting such that the latter's spark is suppressed.
It is the fifth smallest known spaceship, tied with the loafer, LWSS on MWSS 1, LWSS on HWSS 2, MWSS on MWSS 1 and MWSS on MWSS 2.
Occurrence
 Main article: List of natural spaceships
It is the fifth most common spaceship flotilla (and ninth most common spaceship overall) on Catagolue, being less common than LWSS on MWSS 2 but more common than LWSS on MWSS 3.^{[1]} It was also the first flotilla to occur naturally, having first appeared in a soup on August 26, 2014, during alpha testing of apgsearch,^{[2]} and emerging for a second time in April 2015.^{[3]}
Glider synthesis
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be gliderconstructible. A glider synthesis of this object can be found in the infobox to the right.
See also
References
 ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on July 18, 2019.
 ↑ Adam P. Goucher (August 26, 2014). Re: Thread For Your Accidental Discoveries (discussion thread) at the ConwayLife.com forums
 ↑ https://conwaylife.com/forums/viewtopic.php?p=18762#p18762
External links
 20P4H2V0.2 at Heinrich Koenig's Game of Life Object Catalogs
 Patterns
 Patterns with Catagolue frequency class 37
 Natural periodic objects
 Spaceships with 20 cells
 Periodic objects with minimum population 20
 Patterns with 20 cells
 Patterns that can be constructed with 7 gliders
 Spaceships
 Flotillas
 Spaceships with period 4
 Orthogonal spaceships
 Spaceships with speed c/2
 Spaceships with unsimplified speed 2c/4
 Spaceships with heat 29
 XWSS variants
 Spaceships with mod 4
 Spaceships with n symmetry