Crucial Speeds Flashcards
Vbe
Velocity best endurance.
The most time in the air.
Fuel flow is the least
Vy
Maximum rate of climb. Speed at which the AC climbs at the fastest rate per unit of time. Takes place at the same AS as Vbe because it is at the lowest amount of drag. Altitude over time
Vx
Best climb angle. Greatest altitude gain per a given distance.
Altitude over distance.
Vbr
Velocity of best range. Max range. Speed of greatest range per unit if fuel consumed(best mpg). Speed that is the most efficient. Greatest distance.
Vh
Max speed the helicopter can give you. Max amount of Tq you can pull.
Vne
Velocity never exceed. If you exceed this you can get into retreating blade stall or cause damage to the helicopter.
Bucket speed
Airspeed that has the greatest excess of unused power. Speed where you have the most extra available power.
Safest speed ranges
-efficient rotor
-safe SE airspeed
-least amount of drag
-best aloft fuel burn
-large torque cushion
VSSE
Velocity Safe Single Engine