Broomstick wrote:I meant faster than light travel. Sorry for not making that clear.
I can confirm after checking a source online and reviewing my memories that the no FTL travel is essentially correct for the Hainish Cycle universe. The regular travel model is Nearly as Fast as Light Technology (NAFAL) where travel may seem as merely a few hours for a passenger, but travel takes slightly longer than it would take light to cross the distance in question.
I am also confident on this basic point because without it in
The Left Hand of Darkness (which is the second most recent novel in the series chronologically) the reaction of the main character towards the start would have been to simply leave the planet and let another ambassador try again for an alliance in say five years or when political circumstances are more favorable if a decent FTL option was available. (And therefore it wouldn't have been much of a story.) The amount of time the ambassador committed to by making the journey was a key reason he cared so much about trying to be successful in persuading the planet to join up.
Having said this an FTL weapons technology only does in fact appear only in Rocannon's World, but its purely the weapon and certainly not people, and only plays a role in that story. There is another exception to the no FTL travel rule mentioned in two short stories which I have not read, but apparently the side effects are so severe/problematic this technology is almost never used. (Either that or the short stories occur chronologically after essentially everything else in the series.)
Incidentally
The One Eyed Man by L.E. Modesitt J.R. is another science fiction novel he wrote without FTL. In this case the travel option is actually pretty similar the NAFAL tech used in the Hainish Cycle where only a couple weeks effectively elapse on ship, but it does take 73 years for the main character to reach the planet in question in actual time. In this particular novel though there is absolutely no FTL communications technology either. While the novel itself is very much focused on a planet the main character travels to, it does involve a many planet government and the complications of this existing without FTL travel or communications.