GlossaryAircraft Systems
Aircraft SystemsBest Single-Engine Rate of Climb Speed (VYSE)
Also: VYSE, blue line
In a light twin, the speed that gives the best rate of climb, or least sink, with one engine inoperative; it is marked by the blue radial line.
“Best rate-of-climb speed with one engine inoperative. This airspeed provides the most altitude gain in a given period of time in a light, twin-engine airplane following an engine failure.”
Tested on