Calculated fluxes of 66 keV protons (the energy in the fixed frame) in the inner heliosheath as a function of distance from the Sun. The profiles are shown for two directions: forward (upwind, θ = 0°) and the flank (crosswind, θ = 90°) in the ecliptic plane. The upper figure shows the results from the approximations (1) (convection only), (2) (charge-exchange neutralization loss added) and (3) (adiabatic acceleration added). The lower figure shows the approximations (3), (4) (parallel diffusion added, mean free path Λ = 3 AU) and (5) (escape across the heliopause added, mean free path Λ_T = 0.1 AU).