The midshipman’s hitch is very similar to the adjustable grip hitch. In our experience the adjustable grip is usually the better choice in natural fiber rope while the midshipman’s holds better in slippery synthetic material.
Like all other friction hitches, the midshipman’s hitch is not entirely reliable and should never be used for critical vertical lines in suspension.
1Double back and go over and around the green rope, inside the standing part.
Pull the working end hard to the right, jamming the wrap tight against itself.
2Make a second full wrap around the green rope. This wrap should be jammed between the first wrap and the standing part.
3Make a third wrap around the green rope, this time to the right of the previous two wraps.
Pass under the blue rope to make a half hitch.
4Snug the knot into position. Take your time and make sure that the whole knot is tidy and snug.
This knot is ABOK # 1855
This is part of a family of similar knots that are frequently confused with each other. See the Friction Hitches chapter of the Big Book of Bondage Knots for a full discussion of the topic.