The rocket crossbow is the invention of Celianthril, son of Galianthril, a dwarf who gazed up at the starry sky and dreamed of plucking the jewels from the celestial vault. He constructed an enormous arbalest and a hollow arrow filled with seats. Local villagers helped launch him high into the sky where he almost disappeared from view, before plummeting back to earth, rather hard, several hundred leagues from where he began.
Seeing the impact of the mighty arrow, an orc shaman was inspired to build his own version to assault the famed city of Bahanjur-Kazbam with 96 of his warriors packed tightly inside. The inhabitants of the city watched the projectile soar overhead, crashing into a mountain then disappearing into a lake.
(from an article about various flying machines in Casus Belli Special Issue 2: Laelith, 1990)









