These terms are not set in stone. I have modified many of the terms I use when teaching over the years and am always looking for better ones. These terms below have served me well for my own personal learning curve and in teaching over the years. Most of them I came up with when organizing my text, Casting Angles in the early 90’s. These are ongoing and always subject to changes and amendments. I believe that the terms below can be used to teach all styles of casting and have enough tools for discussion of mechanics for specialty casts. When teaching, we often have revelations that seem like they move us through dimensional leaps of faith into new discoveries. When we can get a global recognition of terms commonly used in the sport, it will no doubt be much easier to get instructors on the same page.
I realize that most folks do not need to even witness these terms for their own casting. The casting geek lingo is helpful among instructors and educators of fly fishing. There has been so much offered over the years in dealing with the straight line casting stroke that in some ways I feel this has stagnated the general casting public. You can not use two dimensional terms and models and apply it for the real world of fishing casts (regardless of single or double handed rods). The trend here in the states is to call all of the 3D, constant tension casts, live line cast, etc.. and lump them all into the world of spey casting. This is a tragic mistake for the next generation of anglers throughout the globe if we continue on this path. It is essential that organizations globally break away from this two dimensional ideology for fly casting because it is very limiting on the water (as well as teaching). It is my sincere hope that something in these terms will cause curiosity to increase with your own casting and or teaching.
180 Degree Principle: The aerial back cast or D loop is made in a straight line exactly 180 degrees opposite from the target. Useful for straight line casts for distance and accuracy.
Acceleration– The rate of increase or decrease in velocity, magnitude, or direction.
Active Presentations– A presentation when the fly moves at a different rate from the current in which it travels so the angler may represent the food organism’s behavior. Active presentations impart an erratic change of direction, magnitude, and velocity to the selected imitation that closely mimics the natural organism’s state of being.
Anatomical Advantages– Diagnosing the weaknesses and strengths of the body parts and how they apply to the mechanics of the casting stroke. Many casting styles make use of various individual physiques.
Anatomical Position– The position of your body when standing upright with your arms at your side, while your palms face toward the same direction as your body.
Anchor– The anchor is typically the fly, leader, and a tip section of line that is positioned close to the caster (often a rod length away and in line with D loop and forward cast) prior to delivery. Shorter cast uses less anchor and a long cast uses more line for the anchor.
Angular Thrust-The casting stroke is a combination of the whole body involved for applying force to the rod. However, all casts involve using one or more combination of six different wrist positions (see directly below).
Angular Linear Thrust– A concept for describing the rod hand always remaining parallel with the forearm. The basic vertical foundation cast (most commonly taught) is an example of angular linear thrust. The motion includes usually either wrist abduction or adduction.
Angular Perpendicular Thrust– A concept for describing the rod hand’s perpendicular relationship to the forearm. It encompasses both wrist extension and flexion. This is often performed toward the completion of the casting stroke and line manipulation.
Angular Rotational Thrust– The circular motion applied from the forearm during the cast or mend. The motion is performed by varying the thrust force in which the forearm rotates (pronates or supinates) clockwise or counterclockwise.
Back Cast – A description that usually has the fly line cast opposite of the target area. It changes as well to other directions depending on obstacles, wind, or other change of direction fly line setups.
Bag of Tricks– The complete knowledge of understanding and ability to master several varieties of casts which aid the angler in challenging scenarios. It includes the full spectrum of control and force used for fishing casts.
Body Plane– The body plane refers to the positioning of where the rod and line is used while performing casts. The positioning around the caster will be a measurement of degrees always in a clockwise direction with 0° always directly in front of the caster (see also on–side and off–side).
Cast– The projectile loop motion of line created by varying the amount of force during the stroke that is applied to the rod by the caster. This dynamic motion propels the fly line, leader, and fly to a specific position on the water.
Casting Analyzer– A tool invented by Noel Perkins and Bruce Richards used for looking at the smoothness of applied force during the casting stroke. It also measures the symmetry for the back and forward casts for casts that are translatory. It also contains data of elite casters to compare your application of power with many of the greats.
Casting Arc– (also Casting angle) The angle of rotational change of the rod when making the casting stroke. For many years arc was described as clock face positions.
Casting Cycle– The complete motion of implementing two casting strokes. Usually this is referred to as a back and forward cast. It could also mean two back or two forward cast. Casting cycle varies according to tempo for dealing with obstacles.
Casting Mechanics– A study of force and motion during and after the casting stroke. The force and motion are so completely interrelated (like braids of a rope) that neither can be defined independently from the other.
Casting Planes– Casting planes include all of the various airspace the rod and line are worked through a three–dimensional space around the caster’s body (see rod, loop, and line planes).
Casting Stroke– When the angler applies force to the rod to form a loop of line. This includes hand path and casting arc.
Closed Loop– Refers to a loop in which the fly leg crosses the rod leg during the cast (also called a tailing loop).
Complete System Forces– A concept for viewing all of the internal and external systems in unison (big picture), and the relationship of the interaction of forces present on the objects of the system.
Concave Rod Tip Path– A U-shaped rod tip path where the rod tip falls below, then rises above the effective straight line path (SLP) of the rod tip. May be problematic for causing higher chance for tailing loops (depending on application of power). Most common cause for this shape is applying force to the rod too abruptly or too early in the casting stroke.
Conservation of Energy– The sum of the potential and kinetic energy within the system remains constant for the complete system. The gain of kinetic energy must equal the loss of potential energy in any process of the system.
Control– The intended application or lack of force to achieve a desired line layout. A full range of control includes the concept of application of negative force, normal force, and positive force, as well as the usage of all rod and loop planes. A higher understanding of line tension.
Counterflex-When the rod springs down at the completion of casting stroke (after RSP) toward the direction of the unrolling loop.
Coupled Plane Pendula– A series of three or more hinges that perform motion. This concept is useful for understanding how body hinges of the caster may apply force to the casting stroke for either translatory or rotary motion. It can also be used to describe the fly line loop unrolling during the fly cast. The line is cast through a specific plane and is coupled together with a series of frictionless hinges.
Convex Rod Tip Path– A domed shape rod tip path (windshield-wiper like path in extreme cases) that may result in larger loops. Negative casts (also called underpowered casts) often use a convex rod tip path for controlling large fly loops for curves.
Creep– An ill-timed (too early) forward drift movement of little power to the rod in the direction of the next casting stroke that reduces available casting arc and/or casting stroke. Creep is often labeled as a fault and is usually (but not always) unintentional for many casters. Creep typically increases tension of the rod leg.
D Loop-The D loop is a loop of line that forms behind the rod tip and it can be either dynamic or static. Usually Spey casts make use of a dynamic D loop. A basic roll cast often uses a static D loop.
Damping – a). A term that refers to how quickly a rod recovers to a resting position at the end of rod motion. b). Also used to describe the relaxing on the grip of the rod butt after the stop to minimize rod tip oscillations.
Dangle– The line’s position prior to the cast that is usually downstream of the caster.
Delivery Cast– The final cast that delivers the fly, leader, and line to a specific location.
Direction Altered Cast– A casting stroke in which the forward or backward cast does not end up in the same plane from which it started.
Double Haul– A line acceleration technique that increases rod load, tip speed, and line speed. It encompasses a haul on both the back and forward cast. Aids in keeping the rod tip straighter for a longer period.
Double Taper Line– A line that is tapered on each end and is uniform throughout the remaining length.
Downstream Wind– A wind that blows downstream.
Drag– a).The fly moving at a speed other than the current’s speed in which it is traveling.
b). Rod translation during early part of casting stroke that helps build momentum to the direction of the cast. It can be used to increase tension, take up unwanted slack, delay rotation, or assist casting stroke by starting to overcome fly line inertia. This has been called pull as well with some casting groups (see “Slide” also).
c). Casting geeks also refer to air/water friction on the coatings of fly lines.
Drift– a). Refers to the amount of drag implemented on the fly (sometimes called float).
b). A supplementary motion that takes place during the pause of the stroke for repositioning the rod. Drift also offers an advantageous position for shooting line at the completion of the casting stroke. Upward drift toward the unrolling line can also be an advantage for opening up the casting stroke and arc angle and makes it easier for shooting line due to rod position.
Effective Rod Length-Refers to the distance from tip of rod to the butt of the rod. Useful when looking at video analysis since the rod is bent when performing casts. The shorter the distance of (ERL) equates to maximum load.
Energy– A concept for the capacity of an object to perform work. Examples include potential and kinetic.
Enlightenment Casts– Creative and imaginative uses of various actions when performing the casting stroke. To gain an understanding on the full comprehension of the problems involved and their solutions on the stream.
External System Forces– A concept used for describing forces exerted to the objects of the internal system. Examples include gravity, surface friction of water, wind, diverse currents, obstacles surrounding the caster, and more.
False Casts– To implement multiple casting strokes without allowing the line to fall to the water or ground level.
Feed Lane– An area where food organisms are heavily concentrated in the water current.
Fly Leg-The part of the unrolling loop that contains the fly end to the center of axis of the unrolling loop (accelerating part of loop).
Follow-Through– To move the rod in the direction of the unrolling loop. It can accomplish easier line shoots as well as extending the overall distance of the haul. Follow-through may be either a form of drift or casting stroke.
Forearm Pronation– The rotation of the forearm in back from the anatomical position.
Forearm Supination– The rotation of the forearm in front when the palm faces opposite of the anatomical position.
Forward Cast– A cast that usually travels in front of the caster, but direction is often, but not limited to, a position in front of the caster.
Grip– a). The handle of the rod usually made of cork where the angler pilots the rod. b). Many various grips used to hold the rod depending on what you are attempting to accomplish.
Hand-Rod Path– A concept used for describing the path and distance that the rod hand follows when performing the cast. These paths include simple geometric patterns such as straight lines, circular, elliptical, triangular, and smooth curves.
Haul– A quick tug on the fly line with the line hand usually performed during the last half of casting stroke (used also with various timings for specialty casts).
Imitation– The fly pattern (also called the artificial or fly) attached to the end of the tippet. These typically include wets, nymphs, dries, and streamers.
Inertia– A property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force.
Initial Velocity– Refers to the velocity at which the rod begins the casting stroke.
Internal System Forces– The interaction of the mechanics on the objects within the system and the relationships they exert on one another. The internal system includes all components of the caster and the equipment used in performing the cast.
Kick– The abrupt, rapid or sudden turnover of a fly, leader, or fly line at the end of the loop becoming straight. Can be caused by overpowering a cast, having too much weight at end of leader, or by having no leader or a shortened leader. Positive casts make use of kick for driving a nymph down vertically into the water or when making curve casts.
Latent Rod Force– The slight potential energy (spring) of the rod when casting.
Layout– A concept used for measuring the displacement (initial positioning) of the imitation, the leader, and fly line following the casting stroke.
Level Line– A fly line that is a consistent diameter throughout its length (no taper).
Lift– A vertical form of sweep to lift line from the water prior to the the next line positioning move or casting stroke.
Line Hand– The hand that controls the fly line between the reel and the stripping eyelet. Example, if you cast holding the rod with your right hand, then your left hand is also called the line hand.
Line-Pull Cast– All casts that implement a haul after the stop of the rod has occurred for controlling the layout. This increases tension on the rod leg and causes the fly leg to turnover quicker.
Line Velocity (Average)– A measurement of the displacement of fly line divided by the time which it traveled.
Line Plane– The angle created of the fly line in relation to the surface of water or ground.
Load– To cause the rod to flex when moving the rod during the casting stroke. The resistance of the line weight and increasing momentum against the rod, usually when the line straightens or other similar tension is applied to the line.
Loading Move– The progressive buildup of forces applied to the rod that takes place after the initial velocity and before the stop of the stroke.
Loop– A moving length of line past the rod tip where there is a distinct rod/fly leg. Takes on a candy-cane appearance for the unrolling portion of the fly line. Loop formation always has two strands of line (rod and fly leg), that either may or may not run parallel to one another dependent on translation or rotary hand/rod paths.
Loop Morph–The loop is always changing shape and size during flight depending on overall velocity, tension, mass displacement of the line, and transverse waves put there by the caster.
Loop Plane– A measurement in angles from the perspective of the caster used for determining the relative position of the fly leg in relationship to the rod leg during loop travel. The loop plane is zero-degrees at vertical and is measured clockwise 360 degrees. Controlling loop planes often have hand-paths that deviate from straight (typically curved hand paths during the casting stroke). Learn to control loop planes on top, below, away, and toward the caster when using the same rod plane.
Major Drag– The fly dragging at a different speed from the currents, due to the whole leader tensioning the fly.
Maximum Rod Load– When the rod is bent (loaded) the deepest when performing the overall cast, sweep, mend, and other dynamic line positioning techniques. Usually maximum rod load is close to equaling maximum fly line acceleration.
Maximum Rod Flex (MRF)– The increased force that the rod possesses when it is flexed to near its elastic limit. Longer hand–rod paths, hauling techniques, increased rod arc, rod planes, body planes, equipment used, and optimal load placement (line planes) all influence the maximum rod flex.
Mend– A form of sweep used for manipulating the fly line in air or water that usually creates slack or removes slack in order to achieve a desired result with line layout. Used for placement of line position that typically takes place after RSP.
Micro Drag– The fly dragging at a minute different speed and direction from the currents because the tippet of the leader has increased tension (also called hidden drag).
Momentum– The measure of motion for a property of matter that relates the line’s mass and its velocity.
Narrow Loop– A loop typically with the distance between the fly/rod leg of less than two feet (since the loop is changing this is just a rough average).
Negative Force– A reduction of the net forces applied throughout the stroke by either releasing slack into the internal system or decreasing the amount of force from the rod hand toward the end of the casting stroke. The loop never turning over through infinite casting planes is characteristic of negative force casts.
Non-Parallel Loop– See “open loop”.
Normal Force– The minimal amount of net forces required for performing the cast which attains complete turnover of the loop through infinite casting planes (the fly line should be a straight layout).
Off-Side– The side of the body where the hand holds the line. Off–side includes everything from the ground to the caster’s center of the axis.
On-Side– The side of the body where the hand holds and pilots the rod. Example, a right handed caster’s on–side includes all casting planes from the caster’s center of the axis to ground level on the right (note: this angle is greater than ninety-degrees).
Open Loop– A concept used for describing the appearance of position and large displacement between the fly/rod legs of the loop (also called a curved line or non-parallel loop). This is a casting fault if the caster attempts a translatory hand-rod path. It is normal for rotary hand-rod paths to use an open loop (most negative force casts).
Optimal Line Length– A distance of flyline the caster has the ability and skill level to control when making the cast. To find your optimal line limit, perform several false casts and find the line distance that you can control with confidence. Measure this distance of line and divide the total by the length of the rod used. Beginners may find it practical to mark this point with a permanent marker or attach a nail knot for a reference when performing the cast.
Optimal Load Placement– The placement of flyline on the back cast which distributes the line’s weight most efficiently for bending the rod deep on the forward cast. This placement is critical for allowing the rod to perform more of the work during the cast.
Optimal Reach– A measurement of distance for the path in which the rod hand may travel. Mark a dot on an object to the rear and another far in front for finding your optimal reach distance.
Overhang– The amount of running or shooting line between the tip–top and the rear taper of the shooting head or weight–forward line.
Parallel Loop Legs-Refers to the displacement of the fly and rod legs of the loop remaining parallel. Useful for accuracy and distance casting (highly efficient for loop propagation).
Passive Presentation– Presentations where the fly moves at the same rate as the current in which it travels so the angler may represent the insect in a natural manner.
Pause-The time period between accents of applied force to the rod. Many claim casting strokes, but we have slight pauses for lift, sweep, circle casts, figure eight, etc… (see also rhythm, timing, tempo, and syncopation).
Perpendicular Rod– The rod’s position at the completion of the casting stroke which remains close to ninety-degrees in relationship to the target. This position enables the rod to become an action on altering the tension throughout the line due to rebound (common with positive casts).
Pickup– A form of drift to slowly lift the line from the water before starting the casting stroke.
Pop and Stop– A concept used to describe the amount of force applied to the rod and when it stops during the casting stroke (like paint being flicked from a brush). Has also been called the speed up and stop, power snap, speed move, power stroke, flicking motion, positive stop, and others through various casting circles.
Positive Force– An increase of the net forces applied throughout the stroke and the loop always travels back around to the opposite direction of loop plane in which it was created. Used for positioning angles in the relationship of fly, leader, and fly line (control). Use of greater force than needed for a normal force cast. Characteristics of positive force cast make use of a narrow loop that travels fast.
Presentation– How one presents himself, the cast, the imitation, stealth tactics, equipment chosen; your cumulative knowledge of the complete system for the deception of the fish.
Prime Lies– Areas in stream that offer fish food and shelter from predators.
Rebound– Refers to the rod bouncing back after counterflex (at completion of adding force to the rod with examples of casting stroke, sweep, mend, etc…).
Retrieve– Any method which pulls flyline in through the guides while fishing for controlling the amount of line outside and away from the tip–top.
Reverse Thrust– Any force which is straight away and in the opposite direction of flyline travel upon the completion of the stroke. Examples include pulling the line, backing the rod up, or perpendicular rod positioning (latent rod force) as soon as the abrupt stop occurs.
Rhythm– The movement or fluctuation marked by the regular recurrence or natural flow of related objects to the system. The pace of a singular movement during the cast (line positioning sweep or casting stroke). Used to describe applied force during rod motion. Syncopation, timing, and tempo are a few examples that are encompassed by rhythm. Very important concept for any fly casting model for dealing with teaching advanced casts or line manipulations.
River Left– Is the left bank of the river when facing downstream. This is actually a boating definition that is useful for painting word pictures.
River Right– Is the right bank of the river when facing downstream.
Rod Action–A concept used to describe the features of the rod pertaining to where and how the rod bends when put into motion under load. Characteristics of rod action include but are not limited to frequency, stiffness, sensitivity, distribution of mass, dampening, and mcuh more!
Rod Arc– The angle of change when making the casting stroke (also called casting arc).
Rod Fade–A movement of the rod at the completion of the casting stroke downward toward the water or ground. Used to relieve tension on the rod leg and typically gain greater control over negative force casts.
Rod Hand– The hand which pilots (grips) the fly rod while performing the cast.
Rod Leg– The portion of fly line that runs from the center of axis of the loop to the rod tip.
Rod Plane– A concept used for describing the rod position during the casting stroke. It is a measurement of angles with zero-degrees directly vertical and plus or minus ninety-degrees parallel with the ground or water.
Rod Pointing– On the final delivery cast, the rod is pointed directly toward the target. Pointing the rod is often used while casting in the horizontal casting plane or when applying angular thrust to the cast.
RSP (Rod Straight Position)-A concept of the rod being straight toward the completion of casting stroke. Useful for video diagnostic of overall stroke.
Rod Wavering– The tip-top path of the rod moves away from the parallel reference plane throughout the stroke. The rod hand does not remain consistent for applying force in a straight line during the casting stroke. Rod wavering is used for describing faults in casts when the caster attempts to attain straight line motion (see tracking).
Roll Cast Pickup– A method of beginning the casting stroke in which the fly line becomes aerial to load the line in front and to break the surface tension bond of water. The pickup enables the casting cycle to be more efficient (shooting line on the pickup). It usually proceeds as roll cast pickup, back cast, and finally the delivery cast.
Rotary Motion– Motion occurring in a revolving manner which can be around a fixed point, a point in translatory motion, or a point in rotary motion which may serve as the axis of rotation.
Running Line– The long thin section of fly line that extends from the rear taper of a weight-forward line to the back end of the line.
Shooting Head– A short heavy flyline which that may be tapered or level which is not attached to a conventional running line. The running section is usually made from braided monofilament as opposed to thin flyline.
Shooting Line– a).The thin running line attached to the rear of the shooting taper which is also called a running line. b). The release of additional line to be pulled through the guides by the unrolling loop when the rod has stopped. Shooting line relieves tension in the rod leg causing the fly leg to turnover slower. Late or early shoots are also common for various control casts (also called slip line techniques).
Single Haul– A method of accelerating the rod tip and line speed that uses a haul on either the forward cast or the backward cast, but not both. It is usually performed on the forward cast.
Six Step Method– A very simple diagnostics tool used for instructors that was originated by Bruce Richards. It works by observing the fault in this order line, rod, body, to slip in with the correction of body, rod, line. Once you get lots of teaching experience you can use this tactic to quickly make adjustments. The real art behind it in teaching is to solve a couple of things that solve many. Often times new instructors want to solve many things at once especially with new casters that have many faults. Often a few subtle suggestions leads to progress for the student much quicker.
Slide– Rod translation during early part of casting stroke that does not alter tension when done correctly. When timed correctly, the rod hand and the line hand move back together (without rotation) hence no change in tension. This is what separates slide from drag (drag increases tension on the line). Both enable the caster to setup in a more comfortable or powerful position for rod rotation. Most styles that use drag also use slide first.
SLP (straight line path)-A term used to describe the brief period of time that the rod tip is traveling in a straight line. Smooth acceleration during the casting stroke and hauling the line help to achieve longer SLP (useful for straight line casting).
Snap Casts– A type of cast that propels the loop creation opposite the direction of acceleration. It is the inverse acceleration of typical casting strokes.
Stop– The butt of the rod stops to transfer the energy from the bend of the rod to the line leading to loop formation.
Spey Cast-A form of fly casting that takes advantage of change of direction casts through roll-type casting that remains in constant tension (also called constant tension casting).
Spline– The spline refers to the stiffer section usually on the back of the rod (usually opposite the guides).
Stance– The orientation of the caster’s body during the cast determined by the placement of the caster’s feet.
Stream Awareness-A concept that describes the anglers knowledge and understanding of the behavior, intricacies, and relationships of the stream flow and aquatic organisms and how they relate to the ecosystem. This is best developed through empirical lessons learned on the stream.
Stripping Eyelet– The largest guide on the rod that is also the first one from the grip.
Stroke– The complete casting motion performed by the rod hand that includes only one backward or forward cast, depending on the perspective. The pause is characteristic of the completion of all strokes.
Style– Includes form (such as hand, elbow, stance, etc…), descriptive word pictures for application of force or hauling, and many other unique methods used to achieve various loop shapes. It also includes ones effectiveness to connect with others for communicating these topics in a fun non-boastful manner. Mel Krieger offered the concepts of substance and style. As the sport grows it is a bit easier for instructors and students to convey concepts if we keep these separate.
Substance– Includes the fundamentals of timing, mechanics, all of the specialty fishing casts nuances, and many other key concepts. Sometimes there will be gray areas that have both style and substance. These examples are best stated by Krieger when he said “if you are very fortunate you will understand that the profound path towards teaching mastery gets two miles farther away for every mile you travel”.
Surface Tension– The relationship of intermolecular forces that exist at the surface of a liquid whose properties resemble those of an elastic skin under tension. This force acts heavily on the relationship of line on the water and emergence or egg–laying stages of insects.
Sweep-An action to position the line for the following casting stroke.
Syncopation- Syncopation is used when stressing a force in a normally unstressed location or a lack of force when it is normally accented during rod movements. It really comes into play for elliptical 8’s, snaps, and oval casting (but is very common for many things dealing with rod motion).
System Response Curve– A concept used for understanding the relationship of force and control for varying rod planes. It can be used to measure the system efficiency in explaining different casts.
Tailing Loop– Occurs when the fly leg crosses the rod leg and creates a closed loop (see also closed loops and wind knots). It should be observed past half way point in travel for the propagating loop (because many casts have crossover during setup of roll cast, distance cast, and others-these are not tails in the early setup stages). Since the legs can cross once, twice, and more is the reason for quantifying 50% of loop travel. I have yet to see one tail right at the rod tip that disappears before the 50% rule in flight (because the traveling transverse wave propagates down the line to the end). While it is true that many tailing loops are usually a fault, they can also be useful presentation casts for curve cast. There are many causes of tails but most of them stem from too early/abrupt application of force, line planes less than 180*, rod tip jumps above the oncoming lines path, improper haul timing, and many others. The fly leg wrinkle is the key for seeing the problem and you can easily go back to rod tip for the cause.
Tempo– The pace of the overall cast from start to finish. A beneficial concept to practice changes in tempo for dealing with fishing scenarios. As an example, a slow underpowered back cast static D loop followed by normal forward cast for missing obstacles right at your back. Practical for distance casting in taking tempo to the max for the amount of line carried.
Timing-The time period for each movement during the overall casting sequence.
Tension– Opposing forces that act on pulling the line apart. Make it a goal to really understand how your actions while making casts increase or decrease tension (very beneficial).
Three-Dimensional Casting Planes– A concept used for describing all of the air space around the casters body which the fly line and rod may be used in performing casts.
Tip-Top– The final guide at the tip of the rod.
Tip-Top Path– A concept used to describe the path that the tip–top of the rod scribes through the air when making casts.
Tip-Top Velocity– The velocity of the rod tip during the casting stroke.
Tip Travel– The total distance the rod tip moves when making a cast. This is the by product of casting stroke and casting arc.
Tracking-A term used to describe the rod tip traveling straight with out side to side wobble during the casting stroke (see also rod wavering).
Translatory Motion– A concept used to describe motion occurring in a straight line.
Transverse Wave– A transverse wave is a moving wave that consists of oscillations occurring perpendicular (or right angled) to the direction of energy transfer. One common example of a transverse wave occurs during rebound. Many specialty casts make use of transverse waves for presentations by initiating the wave pulse during the casting stroke which propagates down the fly leg for a desired result.
Upstream Wind– A wind that blows upstream.
V Loop– A V loop is a wedged shape back loop of line formed behind the rod tip that is more efficient than a D loop in flight. Offers greater load to pull against when timed with a proper anchor.
Vector Haul– A line haul method that manipulates two strands of fly line producing a two-to-one ratio for achieving deeper rod flex.
Vector Pull Retrieve– A line retrieval method that manipulates two strands of flyline at all times, as opposed to the traditional retrieval which pulls only one strand. One retrieval of line is equal to approximately twice your body height.
Vector Quantities– A concept used for describing a direction and magnitude that relies heavily on the logic of mathematical relationships for solving the resultant.
Video Capture-To use a camera for tweaking your own casting as well as diagnosing others.
Waltz– The transfer of the caster’s body weight from one foot to the other during the casting cycle. The shifting of the caster’s center of axis throughout the stroke.
Wave Speed of Line– The slight wave forms in the fly line during travel which is less efficient than straight line travel. These waves propagate quicker when tension remains high (see also Transverse waves).
Weight-Forward Line– A line that is tapered and consist of its casting weight distributed toward the front of the line, with the remaining line called running line.
Wind Knot– An overhand knot in the line or leader caused from a tailing loop during the casting stroke.
Wrist Abduction– To draw away from the body from an anatomical position.
Wrist Adduction– To draw toward the body from an anatomical position.
Wrist Extension– To draw away from the joint which increases the angle of the joint.
Wrist Flexion– To close the joint which decreases the angle of the joint.