Slide along a wall, even at full speed, and you take almost no damage. Drive straight into it and the hull takes a heavy blow. Only the part of your speed that points into the wall counts.
Calculator
Set the speed and the angle to get the damage, worked out with the game’s own formula.
Hull damage0
- Impact speed
- Hits until destroyed
Thresholds
- Up to 6 studs/s: a soft touch. The sub just settles against the surface.
- Up to 20 studs/s: a bounce with no damage.
- Over 42 studs/s: a heavy crash. The alarm sounds, and compartments can catch fire or flood (see Crew and compartments).
Damage grows faster than speed: a hit at 45 studs/s hurts almost three times as much as one at 30.
| Impact speed | Damage | Share of hull | What happens |
|---|---|---|---|
| 10 studs/s | 0 | 0% | Bounce, no damage |
| 20 studs/s | 0 | 0% | Bounce, no damage |
| 25 studs/s | 8 | 1% | Hit: the hull is damaged |
| 30 studs/s | 16 | 2% | Hit: the hull is damaged |
| 40 studs/s | 36 | 4% | Hit: the hull is damaged |
| 45 studs/s | 46 | 5% | Heavy crash: alarm, compartments can catch fire or flood |
| 50 studs/s | 58 | 6% | Heavy crash: alarm, compartments can catch fire or flood |
| 60 studs/s | 82 | 8% | Heavy crash: alarm, compartments can catch fire or flood |
| 70 studs/s | 110 | 11% | Heavy crash: alarm, compartments can catch fire or flood |
What else a hit does
- The sub is knocked back, and its bow swings round along the obstacle.
- Push straight against a wall and the engine bogs down. In a glancing hit the sub keeps sliding along the wall.
- If the sub ends up inside the rock, it is pushed gently back out.