I need to learn about those who take their coupled tandem AND a trailer on the airlines. The Yak Bob trailer looks difficult to make suitable for airlines, but Burley trailer apparently folds flat. Second, If trailer can be packed for airline, I'm interested in hauling a powered trailer. RideKick configuration I don't like, but I've seen that a Burley trailer can be retrofitted. The best idea though seems to be putting the GoldenMotor Magic 4 regenerative hub motor on a Bob trailer. Power assist and braking on the trailer would make for a nice ride, don't you think? Now your ideas and experience...