The Albatross 3 is a extremely large stock plane that is capable of long planetary flights. In the stock version the wings are very flexible so additional bracing is advantageous especially as they may fall off in tight maneuvers. Its design somewhat compares to Rutan Voyager.
|“|| The Albatross 3 is a low-speed, long-range aircraft, capable of stable sustained flight for hours on end.
Its very long wings will flex quite a bit, but the flight operations handbook says that's "most likely normal".
It also recommends always using rudder and ailerons combined to turn it.