Bowmen of Skelmersdale

The misnamed TFC

Torque flight compensators don’t add torque, can’t fly and don’t compensate for either. One account of their introduction is that as archers added increasing stabiliser weight, bows felt less smooth to shoot and harder to tune. So a flexible joint was introduced between bow and weight, so that the balance and feel before

and after the shot was retained (static balance), but the bow behaved ‘normally’ for the few milliseconds of the shot. It is now recognised that there are other features of TFC action that are also important. In particular, TFC’s can be used to absorb

vibration, and variable TFC’s can be ‘tuned’ to get a good compromise between damping, stabilisation and feel.

What bow behaviour needs controlling?

Bow  movement

Timing - When is movement important?

Time and Motion

Controlling bow displacement

Weight, Mass and Inertia

Static and Dynamic properties

The misnamed TFC

Controlling bow balance

Centre of Gravity

Finding the centre of gravity

Changing the balance using weight

Weights and Distances

Rods, weights and risers

Controlling bow vibration

Causes of Bow Vibration

Reducing Vibration - Damping

Bow Resonance

Tuned damping - more on TFC’s