What is a "gust lock"?
Thread Starter
Join Date: May 2001
Location: Frankfurt, Germany
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
What is a "gust lock"?
Was reading an article in Septembers "Airliner World" on the way into work this morning about Phoebus Apollo's DC3 out of Johnannesburg.
The article made mention of the necessity of removing the "Gust locks" before the first flight of the day. Hence my question - What is a gust lock?
The article made mention of the necessity of removing the "Gust locks" before the first flight of the day. Hence my question - What is a gust lock?
Join Date: Apr 2001
Location: Near Stalyvegas
Age: 78
Posts: 2,022
Likes: 0
Received 0 Likes
on
0 Posts
Usually a "physical device" hot unlike a large clothes peg used to stop the control sufaces "flapping" in the wind. More modern a/c have a control clomn lock, I believe. {stands to be corrected]
we aim to please, it keeps the cleaners happy
we aim to please, it keeps the cleaners happy
Join Date: Sep 2000
Location: West Mids
Posts: 129
Likes: 0
Received 0 Likes
on
0 Posts
ramsrc,
I believe its does exactly what it says on the tin!
On the aircraft I fly they are soft circular pads on a long threaded bolt that goes inbetween the edge of the aileron (or other flying control) and the rest of the wing/tail fin.
The idea is that whilst the aircraft is parked the flying control cannot be moved by a gust of wind and damage said surface.
I have also seen some real Heath Robinson contraptions that fit in the cockpit that fit around the yolk and rudder pedals, very difficult to get on and off.
Hope this helps.
TBL
I believe its does exactly what it says on the tin!
On the aircraft I fly they are soft circular pads on a long threaded bolt that goes inbetween the edge of the aileron (or other flying control) and the rest of the wing/tail fin.
The idea is that whilst the aircraft is parked the flying control cannot be moved by a gust of wind and damage said surface.
I have also seen some real Heath Robinson contraptions that fit in the cockpit that fit around the yolk and rudder pedals, very difficult to get on and off.
Hope this helps.
TBL
Join Date: Mar 2000
Location: Arizona USA
Posts: 8,571
Likes: 0
Received 0 Likes
on
0 Posts
Internal gust locks were very common on older types...DC4's, DC6's DC7's, Stratocruisers, F.27's, etc.
A large cockpit handle was moved to lock the controls in the neutral (usually) position while parked.
Of course, as with any cockpit device, there invariably comes a time when someone wonders...what would happen if I used this in flight?
The crew of a DC4 found out many years ago just west of KELP when a crew member (actually a check pilot in the obs seat) applied the gust lock in flight.
IIRC, the aircraft was unrepairable due to the twist in the wing and horizontal stabilizer.
A large cockpit handle was moved to lock the controls in the neutral (usually) position while parked.
Of course, as with any cockpit device, there invariably comes a time when someone wonders...what would happen if I used this in flight?
The crew of a DC4 found out many years ago just west of KELP when a crew member (actually a check pilot in the obs seat) applied the gust lock in flight.
IIRC, the aircraft was unrepairable due to the twist in the wing and horizontal stabilizer.
Join Date: Jun 2004
Location: LGW
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
I dont know exactly what it does, but What i do know is that when we have to open the door, we only know its fully open when we hear the gust lock engage. (it clicks)
Similarily when we close the door, we have to depress the gust lock in order to close and "lock" the door.
Hope that helps!
Similarily when we close the door, we have to depress the gust lock in order to close and "lock" the door.
Hope that helps!
That's Life!!
Join Date: Feb 2004
Location: Out of the sand pit, carving a path through our jungle.
Age: 72
Posts: 396
Likes: 0
Received 0 Likes
on
0 Posts
411A,
The old HS748 had internal gust locks, the Dan Air that speared in at Sumburgh was a result of the elevator lock vibrating back to the locked position during the take-off roll, ended up going into the rocks of the breakwater off 09 threshold.
The old HS748 had internal gust locks, the Dan Air that speared in at Sumburgh was a result of the elevator lock vibrating back to the locked position during the take-off roll, ended up going into the rocks of the breakwater off 09 threshold.
Moderator
Likewise, an Australian F27 operator (25 years ago ?) had a gustlock part engage in flight .. causing some considerable flight deck consternation until the penny dropped and the handle was restowed ...
Join Date: Mar 2000
Location: Arizona USA
Posts: 8,571
Likes: 0
Received 0 Likes
on
0 Posts
The Fokker F.27 had the gust lock handle just behind the Captains seat, a place I personally thought was hard to reach.
The Fairchild aircraft however, had the gust lock just to the left of the LHS, where it could be more easily reached, IMO.
Engaging in flight...bad idea, for sure.
The Fairchild aircraft however, had the gust lock just to the left of the LHS, where it could be more easily reached, IMO.
Engaging in flight...bad idea, for sure.
Join Date: Jul 2002
Location: California USA
Posts: 719
Likes: 0
Received 0 Likes
on
0 Posts
Join Date: Aug 2004
Location: U.K
Posts: 207
Likes: 0
Received 0 Likes
on
0 Posts
the 748 that overan the runway and took out the ils hut at liverpool some years ago was due to the elevator gust lock engaging..........the 748 fleet worldwide has now been modded to prevent this occuring again
you would have thought after the dan air a/c they would have sorted it years ago
you would have thought after the dan air a/c they would have sorted it years ago
