underspeed
An excessively-low speed; a speed lower than the minimum operating speed.
Noun
- An excessively-low speed; a speed lower than the minimum operating speed.
- An underspeed switch drops the load off if engine speed falls to 380 r.p.m. and an overspeed governor shuts the engine off if its speed rises above 1,700 r.p.m. - 1961 August, “The English Electric Type 5 3,300 h.p....
- These boundaries can vary from prelaunch predictions due to changing atmospheric conditions and variations in SRB and main engine performance. Using this real-time information, a computer and software program called the...
Origin
From under- + speed.