[Peter] found that he had to use lower frequency RC controllers to penetrate the ... of floating until the air escaped. Our favorite model sub is also our favorite starship. If you want an example ...

Remote controlled cars are easy, and RC tanks can even shoot their guns. One type of vehicle has eluded remote control hobbyists to a large extent; building a remote control submarine is hard.

LDUVV, you see, is a remote control, or RC, submarine. LDUUV spells what? The Navy's been working on building this RC submarine for more than two years now (and we've been tracking it all the way).