More than 50 years ago, the Beatles told us that ‘All You Need Is Love.’ But Roger W. Clark , visiting professor at Rutgers University Law School where he teaches aviation law, said that statement didn’t quite live up to its promise in the case of the A380 aircraft, the largest commercial jetliner, which manufacturer Airbus said earlier this month that it plans to stop producing beginning in 2021. “If all you needed was love, the A380 would be flying forever because it probably has the most comfortable ride,” said Clark, who has practiced aviation law for more than three decades and is also founding member and managing partner of the Clark Law Group, which has offices in California and Florida. “It’s silent. It has a very stable platform. You have an incredible amount of room, and bars and showers in first class. It’s a passenger paradise.” As it turned out, the A380 needed some business logic as well to survive.…