gust lock


Also found in: Wikipedia.

gust lock

A ground lock for aircraft controls used to prevent wind from damaging the control surfaces by knocking them against their stops. These can be either built-in or external locks that are slipped between the movable and fixed surfaces. See control lock.
References in periodicals archive ?
It did so by preventing the throttles from moving if the gust lock was engaged.
The manufacturer didn't test the gust lock to ensure that it would work properly, according to NTSB.
The preliminary report from the National Transportation Safety Board on the May 31 crash at Hanscom Field outside Boston also indicated a possible problem with a mechanical gust lock system on the Gulfstream IV, which protects aircraft components from wind damage while planes are parked.
According to the preliminary report, flight data showed evidence that the gust lock was engaged during the taxi and attempted takeoff, though the handle that locks the device was found to be in the forward or ''off'' position.
There is some evidence that there was a problem with the gust lock system,'' said aviation consultant John Cox, a former pilot and accident investigator.
Believe it or not, one pilot paged through the advisories and warnings on the MFD too quickly, released the rotor brake while the gust lock was still engaged and destroyed the gust lock
When the engines are running during pre-flights, you cannot release the rotor brake until the gust lock is released.
I was looking out the port side at my wing when my COTAC tried to stow the gust lock and lock the wings in place.
By the time I had looked back inside, he had already pulled the gust lock back up.