Although unlike a naval vessel, Starfleet ships have multiple engines for different speeds. You don’t want the pilot to be confused and rack the ship up to Warp cuss when you wanted full-impulse only.
It is also possible “Impulse speed” is a standardised speed in its own right, similar to how someone might say “object approaching at warp-speed, on intercept course”.
Impulse velocity is definitely a standard. That’s why they sometimes say half impulse, or other variations. They do say full impulse sometimes, but, IIRC, mostly when they have been, or are planning to move at various levels of impulse
Although unlike a naval vessel, Starfleet ships have multiple engines for different speeds. You don’t want the pilot to be confused and rack the ship up to Warp cuss when you wanted full-impulse only.
It is also possible “Impulse speed” is a standardised speed in its own right, similar to how someone might say “object approaching at warp-speed, on intercept course”.
Impulse velocity is definitely a standard. That’s why they sometimes say half impulse, or other variations. They do say full impulse sometimes, but, IIRC, mostly when they have been, or are planning to move at various levels of impulse