Archive | Navigation


Summer projects & MNBB

The photo above was taken by my friend Colin while we were out sailing in March. The winds were peaking between twenty and twenty-five knots that day. Brent kept pushing me to put up more sail. Eventually I did but as they passed me, I thought about my capabilities to push Satori to her limits. […]

Continue Reading
Tug towing a log boom in the Swinomish Channel

Severe shoaling reported: A Swinomish Channel adventure

SWINOMISH CHANNEL SOUTH ENTRANCE – Severe Shoaling reported The entrance to the southern Swinomish Channel has a history of shoaling, therefore, mariners are advised to transit this waterway at the highest tide possible and exercise good seamanship and voyage planning. Multiple vessel grounding has occurred in the channel westward of Goat Island between Swinomish Channel […]

Continue Reading

Inland navigation rules changing

A hat tip to Bitter End blogger Captain Richard Rodriguez for bringing this story to our attention. Effective August 1, 2014, the Coast Guard will be changing the Inland Navigation Rules, the “Rules of the Road” governing the conduct of vessels in order to prevent them from colliding with one another. As generations of US […]

Continue Reading
A GLONASS system satellite

GLONASS satellite navigation network disrupted this week

Russia’s GPS-alternative satellite positioning system, GLONASS, was hit by a major disruption earlier this week according to PC Magazine (thanks to Captain Richard Rodriguez at Bitter End for the link). Beginning at 5 p.m. Eastern on Tuesday, most of the 24 satellites in the GLONASS constellation began broadcasting erroneous data about their own positions, leading […]

Continue Reading
Sea lions laying on a VTS separation buoy

Synthetic AIS coming to Puget Sound

Is this the beginning of the drone wars? Is the Singularity, a theoretical mass awakening of machine intelligence arising in our networked computers to revolt against us, now upon us? Probably not, but artificial AIS (Automatic Identification System) beacons are coming to Puget Sound soon, in a big way. The most recent Coast Guard District […]

Continue Reading