Hacker Remix

An Illustrated Guide to Maritime Signal Flags

94 points by gaws 4 days ago | 18 comments

function_seven 8 hours ago

So I just read the other thread about the K language[1] and how it's so-very-concise syntax made the author feel certain ways.

But that has nothing on this! From page 70 of the International Code of Signals[2], we find that PG 2 means, "I am dazzled by your searchlight. Extinguish it or lift it."

Not bad, but what if you reply with "AX 1"? Lots going on there! "Shall I train my searchlight nearly vertical on a cloud, intermittently if possible, and, if your aircraft is seen, deflect the beam upwind and on the water to facilitate your landing?"

[1] https://news.ycombinator.com/item?id=41886051

[2] https://rabbitwaves.ca/media/docs/ics_pub102bk.pdf

GJim 7 hours ago

I have a copy of the International Maritime Organisation (IMO) Code of Signals on my bookshelf.

3 letter medical flag codes include:

MKH Foreskin will not go back to normal position

MKI Patient has swelling of the testicles

MLF Patient has Delirium Tremens

It's a comprehensive book to say the least!

greggsy 7 hours ago

I wonder how many times MLF has been used for a ship’s captain?

acidburnNSA 7 hours ago

Fun fact based on the bottom panel: the peace sign (inverted y) is based on the flag semaphore signs for N and D, originally standing for Nuclear Disarmament.

wrycoder 8 hours ago

This is from 100 Rabbits. Great job!!

One of my favorite flag signals is, “Nothing can be done until high tide.”

ahazred8ta 6 hours ago

US1 Nothing can be done until daylight. US2 Nothing can be done until tide has risen. US3 Nothing can be done until visibility improves. US4 Nothing can be done until weather moderates. US5 Nothing can be done until draft is lightened. US6 Nothing can be done until tugs have arrived.