A jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew. It is commonly used to lift moderate and heavy weights, such as...

resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's Acme nut threads." For their efforts to save the plane, both...

on the elevator create an opposing force, effectively paralyzing the jackscrew mechanism that moves the stabilizer. It becomes very difficult for pilots...

NTSB investigator Ellen Block explains that a damaged elevator assembly jackscrew was the primary cause of the crash. She commends Whip on his valor and...

project raised much of central Chicago to a new grade with the use of jackscrews for raising buildings. While elevating Chicago, and at first improving...

Jackscrews are integral to the scissor jack, one of the simplest kinds of car jack still used....

deadliest aviation accident in Belarus. The cause was a failure of the jackscrew controlling the horizontal stabilizer due to a design flaw. The Yakovlev...

of which are listed below. Aeroflot Flight 8641 Metal fatigue in the jackscrew of the horizontal stabilizer caused the component to fail while the plane...

all 88 on board. The stabilizer failed due to an improperly maintained jackscrew assembly. Note: This crash is covered again in the Season 22 episode 'Pacific...

depressing a zig-zag setback device and the wind stream forces unscrewing a jackscrew locking device. This delay in mechanical arming after two independent...

Soviet Socialist Republic following a failure of the horizontal stabilizer jackscrew due to fatigue caused by design flaws, killing all 132 on board. All Yak-42s...

centered around each mounting hole on ATX motherboards. Pairs of #4-40 UNC jackscrews are used to fasten certain connectors to hardware ports. These fasteners...

crossed the Kaltag Portage west to the coast. Athabascan Jack Nicolai, aka "Jackscrew", took it up the first half of the portage to Old Woman Cabin and Victor...

operating Lion Air Flight 610 had suffered from. Investigators discovered the jackscrew that controlled the pitch angle of the horizontal stabilizer of Flight...

low-lying swampy ground. Buildings and sidewalks were physically raised on jackscrews. The work was funded by private property owners and public funds. During...

failure of the jackscrew in the stabilizer, leading to the deaths of 88 people. Aeroflot Flight 8641, a Yakovlev Yak-42 that suffered a jackscrew failure due...

and data equipment Jack (device), a device used to lift heavy objects Jackscrew, a device used to support heavy objects at various heights Pallet jack...

thread profile, used in high load applications such as leadscrews and jackscrews. It gets its name from the square cross-section of the thread. It is the...

presses) may operate by means of the mechanical advantage supplied by a jackscrew or by a gear reduction driving a rack and pinion. The amount of force...

have suffered from the same problem as Lion Air Flight 610 in that the jackscrew controlling the pitch of the horizontal stabilizer of the crashed Flight...

armour-piercing bomb. The elevator was operated with an electrically powered jackscrew as the only proportional control, while the ailerons were operated with...

severely damaged the horizontal stabilizer mechanism, including breaking its jackscrew, rendering the airplane uncontrollable and resulting in the abnormal pitch-up...

adjustable stabilizer trim system is powered by an electrically operated jackscrew. Variants on the conventional configuration include the T-tail, Cruciform...

20°, 40° and 60°, creating an inflight "variable-geometry" platform. A jackscrew assembly moved the wing's hinge along a set of short horizontal rails...

adjustable stabilizer trim system is powered by an electrically operated jackscrew. One example of an airliner with a genuine stabilator used for flight...

usually have #4-40 UNC (as designated with the Unified Thread Standard) jackscrews that accept screws on the cable end connector cover that are used for...

one directionPages displaying short descriptions of redirect targets Jackscrew – Mechanical lifting device operated by turning a leadscrew Leadscrew –...

climb at takeoff speed, its roll instability, the position of the flap's jackscrews in the fully retracted position,: 58  and the absence of sounds indicating...

that suffered a catastrophic loss of control after improper repairs from jackscrew few years prior. China Airlines Flight 611, a flight that suffered a catastrophic...

{\displaystyle C} = 27.2 for both ends fixed Ball screw Fine adjustment screw Jackscrew Ball Screws & Lead screws, retrieved 2008-12-16. Bhandari, p. 202. Shigley...