Due to the huge tail spark it produces, it has been used to create c/10 puffers and rakes using a glider loop system.
Tanner Jacobi noticed that the rear end of the fireship can be attached to two other fireships, thus allowing for ships of arbitrary size, and these are true tagalongs. Nico Brown built a puffer and a rake using copperheads with tagalongs to make a signal loop.
A pushalong for both the copperhead and the fireship known as the cottonmouth was found by AforAmpere on March 24, 2018. Because its front end matches that of the fireship, it can be infinitely placed on itself.