how to hit Irons with distance?
The way to get more distance with the irons is to hit them more squarely and on the sweet spot. If you're lofting your irons too much, then you're hot striking them properly. The proper strike for an iron is to hit the ball first, with the hands leading forward of the club face and THEN taking turf. You also must still release the club and not try to hold the face. This holding of the face will take a lot of distance off because you're not swinging through with your wrists and releasing the club lag. This is also what creates backspin on the ball. I would recommend a training aid called the tour striker. It will definitely help you create the forward shaft lean and lag that you need to hit the ball well with your irons.