Here's a very similar, but slightly smaller, example which also travels at 3c/4 diagonal

`x = 4, y = 3, rule = B02ace3r5kq/S2aek3n5a6ak`

b2o$o2bo$2obo!

Edit:Extensible 3c/4 diagonal tagalong. Works in many of the isotropic rules the well known 3c/4 works in, but none of the semi-totalistic ones.

`x = 9, y = 9, rule = B023ir4i57/S23456`

2o$2o$2o$3b2o$3b2o$3b2o$6b2o$3b3o2bo$3b4obo!

Asymmetric version of the 3c/4 in rules with B4k added:

`x = 6, y = 3, rule = B023ir4ik57/S23456`

3b2o$3o2bo$4obo!

Edit 2:Some bilaterally symmetric 3c/4 diagonal ships:

`x = 74, y = 74, rule = B023457/S023456`

10b2o5b2o$10b2o5b2o$6b3ob2o5b2o$6b3o7bobo$8bo7bo$8b3o6b2o$2b2o4b3o$2b

2o$2b5o$5b2o6bo11b2o5b2o$3o2b2o18b2o5b2o$3o8b3o3b3o12b2o$11bo3b5o11bob

o$9bobo2b4o13bo$13b5o14b2o$12b3o2b8obo$3b2o7b3obob9o$3o2bo5b5ob4o2bob

2o$4obo5b2o2b4ob4ob3o$11b2o2b3ob5ob2o5b2o$15b7ob7o2b2o$15b2ob11ob4o$

15b2ob2obob9obo$15b10ob6o$15b2o3b9obob2o$9b2o5b7obo3bobo$9b2o4b10o$18b

ob5o$20b6o$20bob2o$21b5o$12b2o7b3o$9b3o2bo4b3o2bo23b2o$9b4obo4b4obo20b

3o2bo$37b4ob7obo$37b6o$41b3o$34b2o5b3o$34b2o6bo$34b2o5b3o11b2o5b2o$34b

2o19b2o5b2o$35b3obo2b2o3b3o12b2o$34b6obob7o11bobo$34bob2obob7o13bo$34b

o7b2o2b2o14b2o$33b2o7b2o3b8obo$33b2o7b3obob9o$33b2o6b5ob4o2bob2o$32bob

o6b2o2b4ob4ob3o$32bo8b2o2b3ob5ob2o5b2o$33b2o10b7ob7o2b2o$45b2ob11ob4o$

45b2ob2obob9obo$45b10ob6o$45b2o3b9obob2o$39b2o5b7obo3bobo$39b2o4b10o$

48bob5o$50b6o$50bob2o$51b5o$42b2o7b3o18b2o$39b3o2bo4b3o2bo17b2o$39b4ob

o4b4obo17b2o$71bobo$65b2o4bo$65b2o5b2o5$64b2o$61b3o2bo$61b4obo!

There seems to be a bug in gfind because it doesn't find any of these ships when searching with bilateral symmetry (gfind v4.9 unmodified)

`> ./gfind /b023457s023456/d4n3ul240`

A 3c/4 diagonal wickstretcher:

`x = 54, y = 54, rule = B023457/S023456`

11b3o$11b3o$9b5o$9b8o$11b2ob3o$11b6o$12b8o$14b2ob3o$8b2o4b6o$2b2o4b2o

5b8o$2b2o13b2ob3o$6o11b6o$7o11b8o$4ob2o13b2ob3o$3b6o5b2o4b6o$3b7o4b2o

5b8o$3b4ob2o13b2ob3o$6b6o11b6o$6b7o11b8o$6b4ob2o13b2ob3o10b2o$9b6o5b2o

4b6o10b2o$9b7o4b2o5b5o10b2o$9b4ob2o13b4o4b2o2bobo$12b6o11b3o5b3obo$12b

7o11b2o5b2o3b2o$12b4ob2o18b3o$15b6o5b2o8b2o$15b7o4b2o7bo$15b4ob2o12b3o

$18b6o5b2o2b3o9b2o5b2o$18b7o4b2o3bo10b2o5b2o$18b7o7b3o2b3o12b2o$22bo8b

9o11bobo$29bob3ob3o13bo$28b5ob4o14b2o$27b3o2b4ob8obo$26bobo3b3obob9o$

22b5o4b5ob4o2bob2o$22b4o5b2o2b4ob4ob3o$23bobo5b2o2b3ob5ob2o5b2o$35b7ob

7o2b2o$22b2o11b2ob11ob4o$19b3o2bo10b2ob2obob9obo$19b4obo10b10ob6o$35b

2o3b9obob2o$29b2o5b7obo3bobo$29b2o4b10o$38bob5o$40b6o$40bob2o$41b5o$

32b2o7b3o$29b3o2bo4b3o2bo$29b4obo4b4obo!

I tried to find a stabilisation for the p8 wick with JLS but was unsuccessful.

p12 3c/4 diagonal frontend. Looks promising but I was unable to complete it. gfind not working for B0 searches with bilateral symmetry is annoying.

`x = 41, y = 41, rule = B023457/S023456`

12b3o3b2o$10bob3o3b2o$9b2ob4ob3o$9b2o4b3o$9b3o3b3o5bo$10b2o3bo$10b2o2b

3obobo$7b5o4bobobo$7b5o4b5o2b3o$2b3o2b5obo2b6ob3o$b10ob2o2b2ob3o$4b6o

2b9o4b2o$3o7b4o2b5o6bo$3o6b4ob3ob4o3b3o3b2o$3o3bo4bob5o2bobo2b3o2b3o$

2b5o4bob3ob6o2b7o$3b2ob9o2b4o4b3obobo$2b3o3b5ob7o4b3ob3o6b2o$3o3b4ob3o

b3ob2o9b3o2b3o2bo$3o5b6ob13o3b2o2b4obo$6b23o2b3o$9b2o2bobo3b6ob3o$14b

2o3b3o2bobob4o$4bo3b2o9b3ob4o2b3o$8b2o9b9ob3o$8b2obob5ob2o2b5ob3ob2o$

11bob5ob10ob5o$12b6ob3o2b11o$15bo4b3o3b9o$15b3o4b4ob4obo$14b2ob2o3b8o

3b2o$13b8ob7o$13b2o3b3o5b4o$20bo4b4obo$25b4obo$18b2o$18b2o$18b2o$17bob

o$17bo$18b2o!

Edit 3: Added "diagonal" to text in several places for clarity