Code:
type NE Trebuchet
dictionary NE_Trebuchet ; Trebuchet
category siege
class missile
voice_type Heavy
banner faction main_missile
banner holy crusade
soldier NE_Trebuchet_Crew, 16, 6, 1
engine trebuchet
attributes sea_faring, hardy, can_withdraw, artillery
formation 1.5, 1.5, 3, 3, 3, square
stat_health 1, 0
stat_pri 6, 3, no, 0, 0, melee, artillery_mechanical, piercing, knife, 25, 1.8
;stat_pri_ex 0, 0, 0
stat_pri_attr no
stat_sec 55, 3, trebuchet, 285, 200, siege_missile, artillery_mechanical, blunt, none, 25, 1
;stat_sec_ex 0, 0, 0
stat_sec_attr ap, bp, area, launching
stat_ter 12, 3, cow_carcass, 215, 3, siege_missile, artillery_mechanical, blunt, none, 25, 1
;stat_ter_ex 0, 0, 0
stat_ter_attr ap, bp, launching,
stat_pri_armour 4, 4, 0, leather
;stat_armour_ex 4, 0, 0, 0, 4, 0, 0, leather
stat_sec_armour 0, 0, flesh
stat_heat 1
stat_ground 0, 0, 0, 0
stat_mental 9, disciplined, highly_trained
stat_charge_dist 30
stat_fire_delay 0
stat_food 60, 300
stat_cost 1, 430, 250, 90, 70, 430, 4, 100
armour_ug_levels 1
armour_ug_models NE_Trebuchet_Crew
ownership england, scotland, hre, france, denmark, portugal, spain, venice, milan, sicily, papal_states
era 1 northern_european, southern_european
;unit_info 6, 0, 8
Looking at the example, I now have 6 Trebuchets in one unit.