The following p4 c/4 spaceship with a minimum population of 396 cells, which is the only known c/4 orthogonal spaceship. Discovered by Josh Ball.

beachcomber ship.png

x = 85, y = 36, rule = s0/b2
58bo$3bo17bo7bo7bo$13bo31bo8bo$5bo3bo14bo9bo25bo$2bo2bo9bo4bo9bobob3o
2bo8bo7bo3bo11bo$3bo11bo9bo4bo3b3o17bo6bo$6bo3bo7bo10bob4ob2o11bo3bo5b
o4bo4bo5bo3bo$3b2obo2bo8bo2bo5bo14bo12bobo2bo$obob2o6bobo2bo18bo8bo5bo
3bob2o5bo11bo$17b2o2bobo3bo2bo7bo4bo12b3ob3obobo3bo7bo$5bo2bo8bo29bo2b
o3bo3bo8bo2bo4b5obobo$5b2o5bobo11bo9bo4bobo5bo3b5o4bobo15b2o$5bo19bo2b
o2bo9b4o2b3o3bo3bo16bo5b2o$44bo2bo5bo19b2o6bo2bo$28bo17bo8b2obo16bo2bo
$31b2o8bo2b2o6bobobo13bo3bo3bo2bo$31bo4bo4bo5bo6b4o3bo3bo4bo2bobo2bob
2o$35bo4bo15bobobo3bo4bobo9bo$35bo4bo15bobobo3bo4bobo9bo$31bo4bo4bo5bo
6b4o3bo3bo4bo2bobo2bob2o$31b2o8bo2b2o6bobobo13bo3bo3bo2bo$28bo17bo8b2o
bo16bo2bo$44bo2bo5bo19b2o6bo2bo$5bo19bo2bo2bo9b4o2b3o3bo3bo16bo5b2o$5b
2o5bobo11bo9bo4bobo5bo3b5o4bobo15b2o$5bo2bo8bo29bo2bo3bo3bo8bo2bo4b5ob
obo$17b2o2bobo3bo2bo7bo4bo12b3ob3obobo3bo7bo$obob2o6bobo2bo18bo8bo5bo
3bob2o5bo11bo$3b2obo2bo8bo2bo5bo14bo12bobo2bo$6bo3bo7bo10bob4ob2o11bo
3bo5bo4bo4bo5bo3bo$3bo11bo9bo4bo3b3o17bo6bo$2bo2bo9bo4bo9bobob3o2bo8bo
7bo3bo11bo$5bo3bo14bo9bo25bo$13bo31bo8bo$3bo17bo7bo7bo$58bo!