While the rc-blimp made its lazy turns inside the museum hangar, the question most often repeated was: "Can I buy that in the museum's gift shop?" ( No, you can't, it's been custom-made by someone in the technical department) closely followed by " Can it be flown outside?" (Theoretically yes, but only when it is absolutely calm). The envelope is filled with helium and the steering is accomplished with two props on the horizontal stabilizer