What is the best controller or intreface cable?

The most practical solution that does not need batteries is USB controller like the ones sold here.
If you want to connect your real radio Tx to the computer, you will need USB interface cable as the ones sold here.

I see a black screen or the program fails to run. What do I do?

ClearView needs OpenGL 2.0 The most common reason for the program to fail in 99% of the cases is that your video card does not support the needed version of OpenGL. All you need to do is to download and install the latest video driver. Read help for more details.

What kind of hardware I need to run ClearView?

ClearView will run on practically any modern Windows computer, and will run on many older Windows machines as well.

Can you suggest a video card? 

ClearView does not need a special video card or special gaming computer. It uses OpenGL 2.0 which is widelly available.

Can I use my game pad controller?

Yes. This is the most practical way to learn RC helicopters if you are just starting. Do not get discouraged by others that tell you that you need RC Transmitter and Tx to PC USB cable to learn "properly" to fly rc. If you learn with your game pad, you will be able to transfer your skills to real RC transmitter easy.

Why I need RC radio transmitter and Tx to USB cable to fly with ClearView?

ClearView supports any Windows game pad compatible device, so you don't need this cable. If you have the cable, or if you want to invest into teaching yourself flying, it will be best if you get one. The control of the helicopter is more realistic and you will progress faster.

How realistic is ClearView?

It is very realistic. If you see video of experienced 3d flier and a see video of the same person flying a model in ClearView, you will be surprised how identical and life-like is the flight simulation provided by ClearView advanced physics engine.

I can do many 3d elements with ClearView, can I do them with my real helicopter or plane?

ClearView provides very real flight simulation. Your helicopter or plane, if properly set can and will do most of the 3d elements that you fly in ClearView. By using the simulator, you learn the hand to eye coordination and that is really valuable. 3d RC flight require perfectly set model and pilot that complements his simulator experience by burning many gallons of fuel. Make sure that you don't over estimate your skills before going for real. The fact that the crashes are real and costly can make your brain freese and that does not help a lot. The best way to benefit from a simulator is to mix real flying with simulator time.