Stuka was a ordinary aircraft until 1943 when he caught radiation, then mutated into a organic aircraft and gained a mouth and is capable of eating enemy's, but he's very friendly, he's just looking for a new pilot: only letting his pilot enter his “cockpit” via mouth, he's not capable of speech though, but that doesn't stop him from showing his love and friendliness, he has got a area in his body: acts as a cockpit its cozy and he can communicate from inside his “cockpit”also, he's 40ft tall.