Welcome to another installment of “Ask an Orvis Fly-Fishing Instructor,” with me, Peter Kutzer. In this episode, I demonstrate how to make aerial mends in your line, creating an upstream or downstream mend before your line touches down on the water. This is a great technique for when you’re casting across varying currents, and it will help you achieve better and longer dead drifts. By making the mend during the cast, you avoid having to break the surface tension to move the line, as you would with a traditional mend.
An aerial mend is quite easy to make, but there are two parts that will require some practice: the size of the mend and where it occurs along the line. By simply drawing a “C” or a “D” with the rod tip, you can create the belly required for a mend. The size of the letter you draw determines the size of the mend. How long you wait after the rod stops on the forward cast determines where that mend will occur. If you want it to be far out near the tip of the line, draw the letter right after the rod stops. To make a mend closer to you, wait a bit before drawing the letter.
With a little practice, you’ll get a feel for both the size and the location of the mend. Good luck!

Previous episodes:
Ask a Fly-Fishing Instructor I: Casting Heavy Flies in the Wind
Ask a Fly-Fishing Instructor II: Roll-Casting for Accuracy & Distance
Ask a Fly-Fishing Instructor III: Casting in the Wind
Ask a Fly-Fishing Instructor IV: Casting Accuracy
Ask a Fly-Fishing Instructor V: The Curve Cast
Ask a Fly-Fishing Instructor VI: Casting Angles
Ask a Fly-Fishing Instructor VII: How to Double Haul
Ask a Fly-Fishing Instructor VIII: Fixing Tailing Loops
Ask a Fly-Fishing Instructor IX: How to Make Delicate Presentations
Ask a Fly-Fishing Instructor X: The Steeple Cast
Ask a Fly-Fishing Instructor XI: How to Avoid Hitting Your Rod with Your Fly
Ask a Fly-Fishing Instructor XII: Don’t be a Creep
Ask a Fly-Fishing Instructor XIII: Parachute and Pile Casts
That aerial mend was pretty good, never saw that one before.
Thanks for the refresher on aerial mends. I’m sure it will work if you need a mend in both directions: maybe draw a C then a D real quick. Then we can work on the cast you are doing on the intro!