引用・参考文献<br><a href="https://www.quora.com/Why-did-the-British-not-have-ventral-machine-guns-on-their-bombers-Other-nations-started-the-war-with-ventral-weapons-yet-beside-isolated-cases-like-the-Hampden-the-British-had-no-protection-and-lost-many-planes-and" target="_blank" rel="noopener nofollow">https://www.quora.com/Why-did-the-British-not-have-ventral-machine-guns-on-their-bombers-Other-nations-started-the-war-with-ventral-weapons-yet-beside-isolated-cases-like-the-Hampden-the-British-had-no-protection-and-lost-many-planes-and</a><br><a href="https://www.quora.com/Why-did-the-WW2-Lancaster-bomber-not-to-have-any-guns-on-the-underside" target="_blank" rel="noopener nofollow">https://www.quora.com/Why-did-the-WW2-Lancaster-bomber-not-to-have-any-guns-on-the-underside</a><br />youtubeの方<br><a href="https://www.youtube.com/c/AdmiralyukkurimilitarybyRetoRooRaa/videos" target="_blank" rel="noopener nofollow">https://www.youtube.com/c/AdmiralyukkurimilitarybyRetoRooRaa/videos</a><br>ボクのツイッター<br><a href="https://twitter.com/retoro_V" target="_blank" rel="noopener nofollow">https://twitter.com/retoro_V</a><br>キャラデザイン<br>CaraCorn様