Switchwave

Switchwave
x = 78, y = 78, rule = B3/S23:T78,78 69bobo2$69bo2bo$71b2o$72bo5$69b2o$71bo$69b2o6$52bobo6bobo$51bo9bobo$ 52bo2bo6bo$54b3o5$44bo$43bobo2$43bo2bo$45b2o$46bo5$43b2o$45bo$43b2o6$ 26bobo6bobo$25bo9bobo$26bo2bo6bo$28b3o5$18bo$17bobo2$17bo2bo$19b2o$20b o5$17b2o$19bo$17b2o6$obo6bobo$9bobo65bo$o2bo6bo$2b3o5$70bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 3 ZOOM 6 GPS 12 ]]
View static image
Pattern type	Wave
Number of cells	26
Bounding box	33 × 33
Direction	Diagonal
Period	96
Mod	48
Speed	c/12
Heat	Unknown
Can be supported by	Cordership
Discovered by	Dean Hickerson
Year of discovery	1991
Rules Outer-totalistic rules B3/S23 only # of rules 20 = 1 Isotropic rules B3/S23 – B3/S236e
Pattern files RLE switchwave.rle

Switchwave is a wave made of switch engines that travels at c/12 diagonal. It can be stabilized by two wings of David Bell's 4-engine Cordership; for example, a 20-engine Cordership based on the switchwave is shown below.

x = 282, y = 282, rule = B3/S23 255b3o$255b3o$256bo$257b2o$258bo$257bo14b2o$272b2o3$255b2o$255b2o$256b o$256bo15bo$255bobo15b2o5b2o$254bo16bobo6b2o$255bo2b2o11bo$256bo3bo10b o$258b2o12b2o$258bo2$266bo3bo$266bo4bo$249bo15b2o4bo$248bobo15bo2bo$ 266bo2bo$248bo2bo15bobo$250b2o20b3o$251bo22bo$273bo4$248b2o$250bo$248b 2o6$231bobo6bobo$230bo9bobo$231bo2bo6bo$233b3o5$223bo$222bobo2$222bo2b o$224b2o$225bo5$222b2o$224bo$222b2o6$205bobo6bobo$204bo9bobo$205bo2bo 6bo$207b3o5$197bo$196bobo2$196bo2bo$198b2o$199bo5$196b2o$198bo$196b2o 6$179bobo6bobo$178bo9bobo$179bo2bo6bo$181b3o5$171bo$170bobo2$170bo2bo$ 172b2o$173bo5$170b2o$172bo$170b2o6$153bobo6bobo$152bo9bobo$153bo2bo6bo $155b3o5$145bo$144bobo2$144bo2bo$146b2o$147bo5$144b2o$146bo$144b2o6$ 127bobo6bobo$126bo9bobo$127bo2bo6bo$129b3o5$119bo$118bobo2$118bo2bo$ 120b2o$121bo5$118b2o$120bo$118b2o6$101bobo6bobo$100bo9bobo$101bo2bo6bo $103b3o5$93bo$92bobo2$92bo2bo$94b2o$95bo5$92b2o$94bo$92b2o6$75bobo6bob o$74bo9bobo$75bo2bo6bo$77b3o5$67bo$66bobo2$66bo2bo$68b2o$69bo5$66b2o$ 68bo$66b2o6$49bobo6bobo$48bo9bobo$49bo2bo6bo$51b3o5$41bo$40bobo2$40bo 2bo$42b2o$43bo5$40b2o$42bo$40b2o6$23bobo6bobo$22bo9bobo$23bo2bo6bo$25b 3o3$14bo$2o7b2o2bobo$3o6b4o3bo$2obobo7bo$3b2o10bob2o$15bobo$16bo5$22bo $20b5o$25bo2$23b3o$20bo$14b3o4b2o$5b2o5bo4bo8bo$5b2o6b2o2bo8bobo$13bo 12b2o6$13b2o$13b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ WIDTH 640 HEIGHT 640 THUMBLAUNCH THUMBSIZE 2 ZOOM 2 THEME 6 GPS 24 AUTOSTART TRACKLOOP 96 -1/12 -1/12 ]]

20-engine Cordership based on switchwave (click above to open LifeViewer) RLE: here Plaintext: here

Two of these switchwaves are used in the first constructed Cordership, 13-engine Cordership. Note that the form shown in the infobox is not unique; the 13-engine Cordership utilizes another wave in the center where switch engines are one diagonal farther and the resulting sparks live longer.