*incident wave, property=shock, pressure amplitude=pulse
surf_subbody_outwater,  1.
surf_fins_outwater,  1.
surf_outwater_subbody,  1.
surf_outwater_fins,  1.
*simpedance, nonreflecting=spherical
surf_rad_sph, 6 
*simpedance, nonreflecting=circular
surf_rad_cyl, 6
*simpedance, nonreflecting=improved 
surf_rad_flat,
surf_inner_water_bow_upper_impedance,