H-Space instrument
Left of the decimal pushes you away from v-space. Right of it is the medium. Dial Z and N_shells: K_f = ln(Z + 1) / N_shells.
Frontline at K_f · 0.6931 Fl
fraction · into v
Z
3
Contested knot. Numerator ln(Z + 1).
N shells
2
Bases. Fan the load until it clears the 1.