3 ms·

Hope it can follow Col Regs.

by davedx 7y ago

jackyinger 7y ago
For those who aren’t avid boaters: https://en.m.wikipedia.org/wiki/International_Regulations_for_Preventing_Collisions_at_Sea https://en.m.wikipedia.org/wiki/International_Regulations_fo... Looking at that tiny wing sail, it’s gonna be sloowwww. Maybe that’ll help?
- CocoaGeek 7y ago
  AFAIK, it's solar powered and not wind powered.
  - adrianmonk 7y ago
    The infographic from IBM's site (http://filecache.mediaroom.com/mr5mr_ibmnews/184460/IBM_Autonomous_Ship_Infographic_Branded_030320-1000.jpg http://filecache.mediaroom.com/mr5mr_ibmnews/184460/IBM_Auto...) says: > PROPULSION SYSTEM Hybrid power: window/solar (with diesel generator backup) And while I'm at it: > SPEED Max: 10 knots > JOURNEY TIME - PLYMOUTH, ENGLAND TO PLYMOUTH, MA Duration: Approximately 12 days
- WJW 7y ago
  20 knots is not all that slow. According to google average container ship speed is about 24 knots. Even the navy destroyer I used to sail on topped out at 30 knots using its gas turbines, which were only to be used for "serious purposes".
  - contingencies 7y ago
    Very rough scale with respect to sailing vessels around 30-55 foot length... multihulls (fast = 20 knots, common = 15 knots, many = 10 knots), monohulls (fast = 12 knots, common = 8-10 knots, many = 6-8 knots). For an ocean-going trimaran, their 10 knot speed is not fast. It is quite likely the vessel's apparently near-fixed "wingsail" represents a very conservatively-rigged configuration that is biased for stability instead of speed.
    - scooble 7y ago
      Thinking about it in the context of the colregs, 10kts is above the hull speed of a 40ft sailing yacht, and is probably plenty fast enough to sink that yacht in a collision.
    - WJW 7y ago
      The documents on the website mentioned 20 kts, so that's what I went with.
scooble 7y ago
I suspect it can't by definition. It is not clear how an unmanned vessel can maintain a proper look-out by sight and hearing (rule 5) for example. It is possible that it has the ability to determine things like which tack another sailing vessel is on (which it will need if it is sailpowered) as well as identifying things like day shapes, light patterns and sound signals and adjusting its behaviour accordingly. I am a little doubtful though. Similar projects seem to rely on AIS for collision prevention, which will mean that it can't 'see' any recreational vessels who lack AIS type A.

Hope it can follow Col Regs.

by davedx 7y ago

Hope it can follow Col Regs.

For those who aren’t avid boaters: https://en.m.wikipedia.org/wiki/International_Regulations_for_Preventing_Collisions_at_Sea https://en.m.wikipedia.org/wiki/International_Regulations_fo... Looking at that tiny wing sail, it’s gonna be sloowwww. Maybe that’ll help?

CocoaGeek 7y ago
AFAIK, it's solar powered and not wind powered.
- adrianmonk 7y ago
  The infographic from IBM's site (http://filecache.mediaroom.com/mr5mr_ibmnews/184460/IBM_Autonomous_Ship_Infographic_Branded_030320-1000.jpg http://filecache.mediaroom.com/mr5mr_ibmnews/184460/IBM_Auto...) says: > PROPULSION SYSTEM Hybrid power: window/solar (with diesel generator backup) And while I'm at it: > SPEED Max: 10 knots > JOURNEY TIME - PLYMOUTH, ENGLAND TO PLYMOUTH, MA Duration: Approximately 12 days
WJW 7y ago
20 knots is not all that slow. According to google average container ship speed is about 24 knots. Even the navy destroyer I used to sail on topped out at 30 knots using its gas turbines, which were only to be used for "serious purposes".
- contingencies 7y ago
  Very rough scale with respect to sailing vessels around 30-55 foot length... multihulls (fast = 20 knots, common = 15 knots, many = 10 knots), monohulls (fast = 12 knots, common = 8-10 knots, many = 6-8 knots). For an ocean-going trimaran, their 10 knot speed is not fast. It is quite likely the vessel's apparently near-fixed "wingsail" represents a very conservatively-rigged configuration that is biased for stability instead of speed.
  - scooble 7y ago
    Thinking about it in the context of the colregs, 10kts is above the hull speed of a 40ft sailing yacht, and is probably plenty fast enough to sink that yacht in a collision.
  - WJW 7y ago
    The documents on the website mentioned 20 kts, so that's what I went with.

scooble 7y ago

I suspect it can't by definition. It is not clear how an unmanned vessel can maintain a proper look-out by sight and hearing (rule 5) for example. It is possible that it has the ability to determine things like which tack another sailing vessel is on (which it will need if it is sailpowered) as well as identifying things like day shapes, light patterns and sound signals and adjusting its behaviour accordingly. I am a little doubtful though. Similar projects seem to rely on AIS for collision prevention, which will mean that it can't 'see' any recreational vessels who lack AIS type A.