{
 "meta": {
  "tool": "DirtSim Late Model Front Geo",
  "schema": 2,
  "name": "Blender educational car (V24 front: V19 alignment, V20 LCA, V24 shock mounts) - provisional baseline",
  "units": "in, lb, deg, lb/in",
  "datum": "X = 0 at rack centre (+ rearward), Y = 0 at rack centre (+ right), Z = 0 ground. Chassis points measured at the reference chassis heights.",
  "source": "tools/frontgeo_baseline_from_blender.py from data/vehicle/blender_v128 (owner's Blender model, estimated geometry)",
  "known_issues": [
   "V24 is the owner's review candidate (not yet approved): front shock lengths, motion ratios and preload changed."
  ],
  "placeholders": [
   "tyre model coefficients (pressure, lateral, crown)",
   "unsprung weight",
   "CG height",
   "front brake %",
   "chassis height measurement points",
   "LCA pivot bolt spacing (model only defines the axis)",
   "UCA cross-shaft end spacing (model only defines the axis)"
  ]
 },
 "chassis": {
  "ref_heights": {
   "LF": 6.5,
   "RF": 6.5
  },
  "height_points": {
   "LF": [
    9.194,
    -24.782,
    6.5
   ],
   "RF": [
    9.194,
    15.218,
    6.5
   ]
  },
  "rack": {
   "height": 9.835,
   "width": 18.761,
   "high_low_spacing": 1.898,
   "ratio_in_per_rev": 4.25
  },
  "LF": {
   "lca_front": [
    -10.178,
    -11.636,
    11.525
   ],
   "lca_rear": [
    4.764,
    -12.776,
    10.876
   ],
   "uca_shaft_front": [
    -3.716,
    -17.69,
    16.338
   ],
   "uca_shaft_rear": [
    5.276,
    -17.689,
    15.95
   ],
   "shock_upper": [
    0.836,
    -19.182,
    26.157
   ]
  },
  "RF": {
   "lca_front": [
    -11.453,
    10.614,
    9.335
   ],
   "lca_rear": [
    3.533,
    10.615,
    8.69
   ],
   "uca_shaft_front": [
    -2.949,
    14.993,
    19.829
   ],
   "uca_shaft_rear": [
    6.043,
    14.994,
    19.442
   ],
   "shock_upper": [
    3.532,
    18.307,
    28.243
   ]
  }
 },
 "parts": {
  "LF": {
   "lca": {
    "length": 17.311,
    "offset": -4.5,
    "bj_height": 0.0,
    "shock_dist": 13.184,
    "shock_offset": -3.519,
    "shock_height": 1.143
   },
   "uca": {
    "length": 13.538,
    "offset": -0.0,
    "bj_height": 0.0
   },
   "spindle": {
    "height": 10.81,
    "kpi": 6.0,
    "drop": 3.95,
    "pin_offset": -0.0,
    "hub_face": 4.634,
    "arm_length": 5.099,
    "ackermann": 2.445,
    "arm_height": 1.413
   },
   "tie_rod": {
    "length": 18.819
   }
  },
  "RF": {
   "lca": {
    "length": 16.61,
    "offset": -4.5,
    "bj_height": 0.0,
    "shock_dist": 12.566,
    "shock_offset": -3.838,
    "shock_height": 1.137
   },
   "uca": {
    "length": 10.001,
    "offset": 0.0,
    "bj_height": 0.0
   },
   "spindle": {
    "height": 10.542,
    "kpi": 6.0,
    "drop": 3.949,
    "pin_offset": -0.0,
    "hub_face": 4.634,
    "arm_length": 5.184,
    "ackermann": 1.124,
    "arm_height": 1.223
   },
   "tie_rod": {
    "length": 17.177
   }
  }
 },
 "setup": {
  "toe_mode": "tie_rods",
  "toe_target_total_in": -0.125,
  "toe_split": 0.5,
  "rack_hole": {
   "LF": "high",
   "RF": "low"
  },
  "LF": {
   "camber_spacer_front": 0.0,
   "camber_spacer_rear": 0.0,
   "caster_slug": 0.0,
   "antidive_front": 0.0,
   "antidive_rear": 0.0,
   "bump_spacer": 0.0,
   "wheel": {
    "width": 14.0,
    "backspacing": 5.0,
    "spacer": 0.0
   },
   "tire": {
    "rollout": 88.0,
    "radius_mode": "model",
    "fixed_radius": 13.406,
    "pressure": 10.0,
    "ref_pressure": 10.0,
    "rate": 800.0,
    "rate_per_psi": 40.0,
    "growth_per_psi": 0.0,
    "lat_rate": 900.0,
    "lat_drop": 0.15,
    "crown_radius": 10.0
   },
   "unsprung": 65.0,
   "spring": {
    "rate": 525.0,
    "free_length": 10.0,
    "load_mode": "smash",
    "smash": [
     {
      "eye": 16.0,
      "load": 400.0
     }
    ],
    "wheel_load": null,
    "stack_height": null,
    "bump_rate": 0.0,
    "bump_gap": 2.0
   },
   "shock": {
    "min_len": 12.5,
    "max_len": 19.0
   }
  },
  "RF": {
   "camber_spacer_front": 0.0,
   "camber_spacer_rear": 0.0,
   "caster_slug": 0.0,
   "antidive_front": 0.0,
   "antidive_rear": 0.0,
   "bump_spacer": 0.0,
   "wheel": {
    "width": 14.0,
    "backspacing": 5.0,
    "spacer": 0.0
   },
   "tire": {
    "rollout": 89.0,
    "radius_mode": "model",
    "fixed_radius": 13.565,
    "pressure": 10.0,
    "ref_pressure": 10.0,
    "rate": 800.0,
    "rate_per_psi": 40.0,
    "growth_per_psi": 0.0,
    "lat_rate": 900.0,
    "lat_drop": 0.15,
    "crown_radius": 10.0
   },
   "unsprung": 65.0,
   "spring": {
    "rate": 300.0,
    "free_length": 12.0,
    "load_mode": "smash",
    "smash": [
     {
      "eye": 18.0,
      "load": 620.0
     }
    ],
    "wheel_load": null,
    "stack_height": null,
    "bump_rate": 0.0,
    "bump_gap": 2.0
   },
   "shock": {
    "min_len": 12.5,
    "max_len": 18.5
   }
  }
 },
 "conditions": {
  "vehicle": {
   "wheelbase": 104.0,
   "cg_height": 16.0,
   "front_brake_pct": 60.0,
   "rear_pct": 54.0,
   "lltd_pct": 46.0
  },
  "static": {
   "mode": "shock",
   "shock_lengths": {
    "LF": 16.0,
    "RF": 18.0
   },
   "heights": {
    "LF": 6.5,
    "RF": 6.5
   },
   "pitch_deg": 0.0,
   "steer_deg": 0.0
  },
  "analysis": {
   "heights_mode": "delta",
   "height_deltas": {
    "LF": 0.25,
    "RF": -1.0
   },
   "heights": {
    "LF": 6.5,
    "RF": 5.5
   },
   "pitch_deg": 0.5,
   "steer_deg": 0.0,
   "lat_coeff": 1.0,
   "brake_coeff": 0.0
  }
 },
 "attitudes": []
}