Well, in some Harry Potter starship fanfiction, there might be the idea of using Patronuses as a form of energy source for the starship. Since Patronuses are powerful positive magical manifestations, they could potentially power up the ship's engines. Also, there could be a story where the starship has to travel through different magical dimensions, like the ones that might be related to the Forbidden Forest's hidden areas, and the crew has to use their knowledge of Hogwarts magic to survive.
Harry Potter himself is often a popular choice. Fans like to imagine him as the captain or a key member of the starship crew, using his Gryffindor courage to face various space - related challenges. Hermione Granger is also popular as she can bring her vast knowledge of magic and her quick - witted problem - solving skills to the crew.
The Death Eaters could be the antagonists. Even though Voldemort is gone, some of his followers might not want Harry to succeed in building a starship as they fear it could bring more power to Harry and his friends, and they still hold grudges against him.
The plot could involve Harry using his knowledge of spells and potions to create a unique starship. He could also recruit his wizard friends to help him. For example, Hermione could use her vast knowledge to research the best magical elements to incorporate into the ship's design, while Ron could provide his loyalty and physical strength for the more labor - intensive parts of the construction. And they might face challenges from the wizarding world, like the Ministry of Magic trying to stop them for fear of revealing magic to the Muggle world through their starship adventure.
It could work if the characters from both universes were to cross over. Imagine Harry Potter and his friends joining the Mobile Infantry. Harry's leadership skills and his ability to think on his feet, which he developed while fighting against Voldemort, could be very useful in the battles against the bugs. Hermione's vast knowledge of magic could be applied to find new ways to combat the alien threat. Ron's loyalty and courage would also be valuable assets. The different cultures of the two universes would also create interesting clashes and collaborations.
The concept of Harry Potter as captain of a starship in fanfiction is really interesting. Imagine he has a wand - powered engine or something. His knowledge of magic could be used to create new technologies on the starship. He might also encounter different species of magical beings from other planets. His ability to think on his feet, which he developed during his years at Hogwarts fighting Voldemort, would serve him well when making quick decisions during starship crises, like when they're caught in a black hole's gravitational pull or facing a surprise attack from a space pirate fleet.
A plot where the Hogwarts houses are re - purposed for the Starship Troopers battles could be really interesting. Gryffindor could lead the charge against the bugs, with their bravery and courage. Slytherin could use their cunning to come up with strategic plans to outwit the bugs. Ravenclaw could analyze the bugs' behavior and weaknesses using their intelligence, and Hufflepuff could be in charge of the support and care of the troops. This would bring a whole new dynamic to both universes.
He would become more of a space - faring leader. His focus would shift from the wizarding world on Earth to the cosmos. He'd probably be more open - minded about different cultures and species, just as he was about different wizarding houses at Hogwarts.
Yes, there could be some really cool crossovers. For example, imagine the magic of Harry Potter in the universe of Starship Troopers. Wizards could use their spells to fight the bugs in a unique way. Maybe they could transfigure the bugs into something harmless or use protective charms against their attacks. It would be a wild mix of two very different fictional worlds.
Survival is likely a big theme. In Starship Troopers, the soldiers are constantly fighting for survival against the bugs. In Harry Potter, the characters are also in a fight for survival against Voldemort and his Death Eaters. So in fanfics, there could be a merging of these survival situations, like the wizards having to survive in the bug - infested worlds of Starship Troopers.