I got to thinking, instead of gears and driveshafts keeping the gondola upright on the Rainbow at all times, why not have the gondola free-swing/pivot like a Ferris Wheel seat on the lower arm instead? Some of you know how the Faller Rainbow is set up, right? Well, what i'm getting at is, you see that flat plastic piece that sits in the middle floor of the gondola where the axle comes through to hold it up? Why not do up a real Huss Rainbow the same way, with a solid metal/steel plate in the middle that would sit on the floor of the gondola & have a huge axle run through it & secure it with R-keys & pins. That way, the gondola will stay upright ALL of the time, and it would never tip or flip upside down, due to there wouldn't be any type of gears it'd be relying on to stay upright. So my point is, if Huss re-did the Rainbow / refurbished most around the world to make 'em safer, make it to where the gondola pivots free-swing like an Eli Wheel seat / Sky Wheel seat. So, the only gears would be the middle of the ride that makes it go.