I am a big fan of Kevin Duggan and his company Jet Shades. I had the [first] generation Jet Shades in my Robinson R66 helicopter for over a year and found that they not only worked but more importantly, they worked really well. They substantially cut the heat while at the same time allowing great visibility for situational awareness. When parked on the ramp, the Jet Shades easily kept the inside temperature less and allowed the cockpit to cool quicker once I was back in the helicopter and running the AC. Now take all of those comments and multiply it by two, because that is how good the Generation 2 shades are!!! I have now been experiencing the benefits of the Generation 2 shades for about 2 weeks and they are nothing less than awesome. I highly recommend you consider the Generation 2 shades, and I can assure you that you will be happy that you did.