Instrument Flying Training Aids

[Xamlah]

Hey guys,

I am searching for aids to help in IFR training on helicopters. We are trying to work on basic instrument flying, using something other than the usual IFR goggles, which block the field of view.

I have heard something about polarized sticky sheets on the windshields in the military. Has anyone used that?

Please let me know the different practices and equipment in use!
You can contact me at: xamlah*at*gmail*dot*com

Thanks,
XR