There has been a lot of talk about the blockbuster movie, “Top Gun: Maverick,” and the featured hypersonic jet, Darkstar, that propels Tom Cruise to the edge of the atmosphere at Mach 10.2. Were special effects used to capture the drama? Of course, but there was also a lot of realism. The Darkstar plane is a model, but just barely. It is a 70-foot-long full-scale rolling model with a 40-foot wingspan. It is based on aerospace design principles, built using carbon fiber, has functional landing gear, and features a realistic cockpit. The Darkstar was designed by Lockheed Martin Skunk Works and precision built by ADM Works in Orange County, Calif.