The Defensive Space Force Ship Requirement
is a crossover and fusion fanfic written on Fanfiction Dot Net by tkepner.
Everything starts in 1995, when Lee Jordan decides to test if the Room of Requirement can really give you anything you want, and asks for a spaceship. Well, the Room cannot exactly create one — but it can lead Dumbledore's Army to an abandoned vessel, somewhere in the Solar System.
Suddenly, the problems of a secluded society on a tiny island don't seem that important anymore. There is a solar system to explore, and more beyond, after all.
The primary fandom is Harry Potter. The primary crossover element is Stargate SG-1. There are additional elements of Star Trek, Star Wars, Space: 1999, and others. The most frequently mentioned franchises are Star Trek, and Star Wars.
Contains the following tropes
- A Child Shall Lead Them: Harry is only 16 when they walk through the door the Room of Requirement creates and onto their starship. The DA crew proceed to appoint Harry as captain.
- Later, there is a chapter with a title based on this trope.
- Adaptational Heroism:
- Downplayed with Zacharias Smith who was quite the Jerkass in canon, but here is an important member of the Crew tasked with charting paths.
- Marietta Edgecombe never betrays Dumbledore's Army. Instead, she convinces her parents to leave their jobs and support the Crew.
- Adults Are Useless: Harry firmly refuses to tell about the spaceship to the Order of the Phoenix, because they would dismiss its importance or claim the Crew cannot actually use it. However, he does agree to recruit grown-ups whom he considers trustworthy — like Sirius or Josephine Edgecombe.
- Ascended Fanboy: Lee Jordan really wanted a spaceship in order to emulate Star Trek. Not only did he get to live his dream, many muggleborns and half-bloods are overjoyed by the prospect of working on the D. S. F. S. Requirement.
- Cool Starship: Narrative clues indicate that The Requirement is of Asgard origin. It is equipped with more crew accommodations than the Hogwarts based crew can make use of. It also has an advanced FTL drive, (But no fuel, at first) and replicators capable of (slowly) building a complete copy of the ship. The crew later adds offensive and defensive weapon emplacements, shields and landing bays for a few shuttles that closely resemble the Eagle One from Space: 1999, and a wing of fighter craft based on the X-wing class from Star Wars. Due to the addition of outrigger style landing bays the Requirement inevitably ends up bearing a passing resemblance to the titular Battlestar Galactica.
- Culture Clash: The English Harry and Hermione are unimpressed by the prospect of meeting the President of the United States, seeing him as a mere elected official who happens to rule (much of) a whole continent. By contrast, they are much more intimidated and respectful towards Queen Elizabeth the Second.
- Dope Slap: In chapter 5, Hermione is explaining that the asteroid they are mining isn't giving them some of the materials they are using up."Can we find (an asteroid) with gold in it?" Ron asked. Hermione slapped him soundly on the back of the head.
- Do Well, But Not Perfect: Hermione points out that it's obvious that replicator-made products are artificial, because natural gems and gold always contain some flaws and inclusions, no matter how tiny. Indeed, that's how Hammond and his subordinates manage to track part of the Crew's financial operations — they're exchanging or paying with structurally perfect, identical gold ingots.
- Entertainingly Wrong: Hammond and his subordinates on Earth believe the anomaly and the weird phenomena it causes on the planet are alien in nature, when the Crew is fully human and born on Earth.
- For Want Of A Nail: Because Harry is sleeping on the spaceship, he cannot receive visions originating from Voldemort's dreams (because of the sheer distance). It causes Arthur Weasley to be incapacitated for several months as nobody could raise the alarm when he was assaulted by Nagini, and the Ministry's invasion never takes place.
- Marietta is too invested in becoming one of the first people to explore the galaxy to betray the Crew, so she decides to recruit her mother to the cause instead.
- Locked Out of the Loop: The Crew keeps the spaceship a secret, even from their own families.
- Parents as People: Josephine Edgecombe is deeply stressed by the fact that she's stuck in a menial job with her blood status a liability for her future, so puts pressure on her daughter to toe the line at school. When given a much a safer career with the Crew, she becomes more laidback and loving.
- Pop-Cultural Osmosis Failure: Many muggleborns and half-bloods comment on the Wizarding World's sheer disinterest in Star Trek, and this is actively exploited to ensure the pure-bloods won't look at the Crew's store front too close.
- Reasonable Authority Figure: George Hammond quietly monitors the situation with the anomaly but doesn't push for actively confronting what he believes to be aliens since they are neither openly aggressive nor confrontational.
- Screw the Rules, I Have Money!: Thanks to the replicator, the Crew can produce gold bars in silly amounts and casually use said gold in order to "convince" people to work with them.
- That Came Out Wrong: One of Hammond's subordinates announces that "there's something wrong with Uranus'' and is mortified when the man points how the sentence could be misconstrued.
- Weirdness Magnet: Lee outright wonders if SG-1 is actually cursed, considering their track records for stumbling from disasters into cataclysms.
- Worthless Yellow Rocks: As the ship's replicator grants them access to any kind of wealth in unlimited amounts, the Crew doesn't care about throwing gold at problems and many of them actually consider money a hindrance, to Josephine Edgecombe's utter horror. Having literally tons of gold available as their only form of spendable currency is starting to become a problem since using it to pay people or make purchases for stuff they can't make using the replicator is starting to depress gold prices.
