Jul 15, 2015 · Their outward journey was 1 minute, their inward journey will be between 60 and 1380 minutes. Assuming that they plan to make the return journey at light speed, and that that journey will take them between 1 and 23 hours, we can peg a lower and upper bound on the speed of "ludicrous speed" at somewhere around 65 and 1380 times the speed of light.

Jul 15, 2015 · It's a play on the phrase, "They've gone to warp," from Star Trek, and the warp trail effect a ship causes when it goes to warp speed. The ship has hit ludicrous speed, so they chose a "ludicrous color" such as plaid to represent that. However, user @BrettFromLA provides an answer that, while not the accepted one, is also interesting:

Apr 7, 2014 · It's a play on the phrase, "They've gone to warp," from Star Trek, and the warp trail effect a ship causes when it goes to warp speed. The ship has hit ludicrous speed, so they chose a "ludicrous color" such as plaid to represent that.

Apr 30, 2017 · A problem with the warp chart is that warp 5 is shown to travel 214 times the speed of light, but that is incorrect according to Star trek enterprise. In Enterprise, the ship can only go at top speed of warp 5, meaning Enterprise could travel 214 light years in one year.

May 3, 2013 · @SachinShekhar I think that if the SW and ST FTL were of comparable speed and SW just had a smaller galaxy, the SW galaxy would have collapsed into a black hole long before intelligent life could have had time to evolve >_> –

Dec 23, 2016 · In the films, we see Yoda, Obi-Wan and Leia reacting to far-away deaths instantaneously. There is also the transgalactic Force choking mentioned in Jason Baker's answer. These seem to indicate that there's no speed limit on the Force itself. However, other powers (such as Force push, lightning, etc.) seem to happen as a "wave" (see 1:43):

Apr 30, 2011 · The council further ordered Federation ships throughout the galaxy to restrict their maximum speed to warp 4.7. (TNG: Force of Nature). The Starship Enterprise-D and other ships observed the "warp speed limit" for the remainder of Star Trek: The Next Generation.

Aug 10, 2021 · Now, this doesn't make sense as they are obviously traveling to locations multiple light-years away. And if they want to make it to their destination in less than 50 or so years, they have to be going faster than the speed of light. I mean, the Millennium Falcon is even said to be able to go ".5 past light speed" according to Han.

By comparison, the (YT-1300 light freighter) Millennium Falcon traverses a distance of approximately 70,000 light years (based on the distance from Tatooine to Alderaan, the known size of the Skyriver galaxy and the known length of a year in the Star Wars universe) in less than a few hours, equating to a top speed of around 20,000 light years ...

Dec 20, 2016 · The English word "ludicrous" comes from the Latin word for "play", and its oldest meaning (according to the OED) is "pertaining to play or sport". That sense of the word is obsolete in muggledom, but maybe it's still used in the wizarding world? Presumably the Ludicrous Patents Office is where you get a patent on sporting equipment. –