Is this 47 underdamped?

The 47 is supposed to be a very stable helicopter, but a touch of the cyclic in any direction can fully tip the helicopter over if not countered. Are you modeling the damping provided by blade hinges, rotor angular momentum, and the stabilizer bar?

I don’t think this helicopter should be as wild and sloppy as it is in a hover. Even when you’re up at speed, a tiny touch of roll input unopposed is enough to roll the helicopter nearly 90 degrees.

Hi Jon,

I would recommend double check your flight control set up and make sure the there’s no dead zones. Obviously the type of controls being used will impact this a lot too. If they are modern hall effect sensor controls you should be able to put the sensitivity up to 100% or as the manual details even higher by inputting your desired value. This really depends on how comfortable you are with helicopters. If this is still causing problems then consider using a level of realism setting (beginner or intermediate) and turn up the stability sliders until you feel more comfortable and incrementally increase the sliders back towards zero as you become more proficient.
Think of them as a surrogate instructor. As you’re learning on your own use those sliders to give you a chance to build those skills. After a few hours you should be getting there and then lowering the stability sliders.
In helicopter terms “very stable” is relative and certainly doesn’t mean easy.

See the video below of what can go wrong with a Bell47 when a non pilot assumes the controls and the speed things fall apart!
Non pilot crashes helicopter
Good luck and I hope you persevere, as it’s incredibly rewarding to master this little beast.


Thanks, Stuart. I can mess with sensitivity and see how the handling changes.

I’m a pretty avid helicopter flight simmer so I am not sure it’s my unfamiliarity with the controls.

What mean is that this flight model is noticeably different from most state-of-the-art models in helicopter flight sim, and specifically in any damping action in roll and pitch plane at low speeds. At higher speeds there seems to be a bit more firmness and since FlyInside do the whole physics internally I don’t know if that’s a rotor effect or an airframe aerodynamics effect.

I might capture some video of the FlyInside module and post it alongside some helicopters in X-Plane and DCS - specifically helicopters with underslung rotors and no SAS systems (like the R44 and Huey).