A shuttle is an oscillator that consists of an active region moving back and forth between stabilizing objects. The most well-known and first discovered examples are the queen bee shuttle (which is sometimes referred to as the shuttle) and the twin bees shuttle . A large number of T-tetromino and pre-pulsar shuttles are known, including the p30 Eureka . Reflectors can be used to construct glider shuttles (see relay ).

```
x = 22, y = 7, rule = B3/S23
9bo$7bobo$6bobo11b2o$2o3bo2bo11b2o$2o4bobo$7bobo$9bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 AUTOSTART GPS 25 ]]
```

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queen bee shuttle (click above to open LifeViewer )RLE : here Plaintext : here

Simple shuttles commonly have a period that is a multiple of 2, but asymmetric shuttles are also known, in which one end is stabilized by a different period mechanism from the other.

Glider shuttle
A glider shuttle is a shuttle in which one or more gliders circulate in a repetitive pattern.

```
x = 53, y = 53, rule = B3/S23
19b2o$19bobo$22bo2b2o$20b2obo2bo$19bobob2o$20bo4$22b2o$21bo2bo$21bobo$
21bobo$16b2o4bo$15bobo18bo$15bo20b3o$14b2o23bo$38b2o$19bobo$19b2o12b2o
13bo2b2o$20bo11b2o13bobo2bo$34bo5b3o5b2obo$39bo3bo6bo$40b2obo4b2o$42bo
5bo$50bo$2b2o45b2o$2bo$4bo5bo$3b2o4bob2o$2bo6bo3bo$bob2o5b3o5bo$o2bobo
13b2o11bo$2o2bo13b2o12b2o$31bobo$13b2o$13bo23b2o$14b3o20bo$16bo18bobo$
30bo4b2o$29bobo$29bobo$28bo2bo$29b2o4$32bo$28b2obobo$26bo2bob2o$26b2o
2bo$31bobo$32b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 AUTOSTART GPS 25 ZOOM 7 HEIGHT 560 ]]
```

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p26 glider shuttle (click above to open LifeViewer )RLE : here Plaintext : here

```
x = 32, y = 32, rule = B3/S23
2bo10bo2bo$b3o13bo$3obo13b2o$bo3bo6bob2o6bo$2bo3bo5bo2bo3bo$3bob3o3bo
3bob3o$4b3o3bo11bo$5bo7b3obo3bo$13bo3bo2bo$10bo6b2obo$8bo4b2o$7b2o6bo$
7bobo6bo2bo3$2b2o$bobo$bo$2o23bo2bo$24bo$22b2o$19bo6b2obo$8b2o4b2o6bo
3bo2bo$8b2o4b2o6b3obo3bo$19bo11bo$20bo3bob3o$7bob2o3b2o5bo2bo3bo$7bobo
4b2o5bob2o6bo$8bo18b2o$8b2o16bo$8b2o12bo2bo$8b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 AUTOSTART GPS 25 ZOOM 7 HEIGHT 560 ]]
```

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p88 glider shuttle (useful model for 8n SKOPs ) (click above to open LifeViewer )RLE : here Plaintext : here

See also
External links