Towers were placed every hundred feet and mounted with catapults and ballistae. Siege units are of two types&colon; catapults and ballista. They resembled large crossbows, rather than catapults. Catapults and ballistae would not have been used in a forest. The military was well supplied with siege equipment, including battering rams, siege towers, and catapults. Athenian triremes were vulnerable to attack by arrows and catapults. The ships were equipped with two catapults and two Arado 196 seaplanes. The class also had two aircraft catapults amidships. Dongola was besieged and bombarded by catapults. The aircraft would have been floatplanes launched from catapults on the ship's fantail. This supplier provides approximately 80% of all human cannon catapults. The French Navy operates one carrier equipped with catapults and arresters. Stronger elevators, more powerful hydraulic catapults, and new arresting gear were installed. She catapults her chimichangas at the witches during the final battle. With the power of twelve catapults, Baiju stormed Erzurum.