  In this paper, we study KM-arcs of type t, i.e. point sets of size q + t in
PG(2, q) such that every line contains 0, 2 or t of its points. We use field
reduction to give a different point of view on the class of translation arcs.
Starting from a particular F2-linear set, called an i-club, we reconstruct the
projective triads, the translation hyperovals as well as the translation arcs
constructed by Korchmaros-Mazzocca, Gacs-Weiner and Limbupasiriporn. We show
the KM-arcs of type q/4 recently constructed by Vandendriessche are translation
arcs and fit in this family. Finally, we construct a family of KM-arcs of type
q/4. We show that this family, apart from new examples that are not translation
KM-arcs, contains all translation KM-arcs of type q/4.
