Vlo lower than Vle
#11
Am I missing something here? I have always thought it was like this:
Vlo: Maximum gear OPERATION speed; the maximum airspeed the gear can be operated, whether that be extension or retraction.
Vle: Maximum gear EXTENDED speed; the maximum airspeed with the gear in the extended position.
Therefore, I have always thought the reason Vle is higher than Vlo is because the landing gear and/or gear doors are certified to withstand a higher speed while stationary (extended) than when in motion (extending or retracting).
Anybody agree or disagree?
Vlo: Maximum gear OPERATION speed; the maximum airspeed the gear can be operated, whether that be extension or retraction.
Vle: Maximum gear EXTENDED speed; the maximum airspeed with the gear in the extended position.
Therefore, I have always thought the reason Vle is higher than Vlo is because the landing gear and/or gear doors are certified to withstand a higher speed while stationary (extended) than when in motion (extending or retracting).
Anybody agree or disagree?
#12
Line Holder
Joined APC: May 2006
Posts: 75
I agree with Brendan. Vlo can have 2 different speeds, one for extension and one for retraction. Vle is the max speed with the gear hanging out and locked, not moving.
I don't know B-777 speeds, but in the EMB145 Vlo-extension is 250, Vlo-retraction is 200 and Vle is 250.
I don't know B-777 speeds, but in the EMB145 Vlo-extension is 250, Vlo-retraction is 200 and Vle is 250.