Convex face. Why?

Irons have a flat club face. Woods and hybrids have slightly convex faces. Why?

Todd

Woods have bulge to help correct for missing the middle. The gear effect actually helps toe-hits to draw a bit while heelies fade. It has to do with the CoG of the clubhead and the CoG of the ball and the forces applied.

I assume that irons do not have bulge because the CoG is so close to the face (which it isn't in woods), so gear effect really doesn't play a part. Either that, or the increased loft of irons makes it a moot point.

I haven't seen too many higher lofted fairway woods or hybrids with huge amounts of bulge, though.

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PCS Class 'A' Clubfitter

A new highlight: Golfing the home course on Christmas Day.

I say it too often: If it's golf club shaped, you can play with it.

For the record, I'm a club doctor, not a swing doctor.

and here I thought it was to make the club even more difficult to hit...

Wonders how do you square a convex face to an imaginary linear target...

VERY precisely!

There actually exists a training device for putting that is fully spherical the size of a golfball.

Imagine lining up a fully spherical (and thus ultimately convex) putterface to a fully spherical ball and try to roll it to a linear target.

Not easy - but damn good practice for learning how to hit in the sweet spot!