In cross-section, what shape should an ideal imping needle be?

An ideal imping needle in falconry should have a triangular shape in cross-section. The triangular design is beneficial for several reasons. Firstly, it provides a sharp point that facilitates easy penetration when securing feathers or materials to repair a broken feather. The geometry of the triangle also allows for efficient transfer of force, providing a more stable hold when the needle is driven into the feather shaft.

Additionally, the triangular cross-section helps to reduce the amount of material needed for the needle while maintaining strength and rigidity. This means the needle can be lightweight yet durable, which is essential for ensuring minimal disruption to the bird's natural balance and movement when the needle is used for imping.

Overall, the triangular shape is specifically advantageous for the practical needs of imping, offering a balance of efficiency, effectiveness, and functionality in falconry applications.