content: The immelman is mostly for dogfighting, and always with an energy advantage. The typical case for it is an overshoot, you re-climb, and then do an immelman turn to reapproach (Whereas they have no chance of chasing you down because of your massive energy advantage allowing for you to climb way out of their reach). Additionally, they can't run away because your energy advantage allows you to turn altitude into speed. The other normal use case for it is if you're being chased and have an energy advantage, they should stall sooner than you and have to pull off (to avoid an overshoot below you and right into your gunsights). Doing an immelman turn allows you to do an air stall inversion or a low velocity loop, and turn the tables while retaining your energy advantage. Realistically, anything carrying a bomb payload would be really bad at it (bombs are heavy, and hinder climb rate quite badly), because they need a much bigger energy advantage to be able to use it meaningfully. Otherwise, they'll stall sooner than the pursuer and essentially come to a stop right in the pursuer's gunsights.