jackscrew
- noun
- /ˈdʒæksˌkru/
- Specialized
- The mechanic used a jackscrew to lift the heavy engine during the repair.
Examples
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Features include shell-recess areas for solder washout and inspection; stainless steel 10 to 80 jackscrew, and insert options for contact sizes 9 to 69.
Academic text (2004) -
This is the jackscrew on the tail assembly that articulates the horizontal stabilizer, also known as the elevator.
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The thread failure was caused by excessive wear resulting from Alaska Airlines' insufficient lubrication of the jackscrew assembly.
Blog text (19) -
Our investigators have concluded that the jackscrew snapped and the elevator was frozen in a fixed position, locking the elevator in a down position, which forced the plane into a dive.
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The stated probable cause was "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads."
Blog text (19) -
In the aircraft, the jackscrew is essential for adjusting the position of the stabilizer.
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The jackscrew allowed the technician to raise the heavy machinery with ease.
Synonyms
A tool that lifts a car so you can change a tire
A tool that lifts heavy things by turning a screw, often used to raise a car
Surface Forms
Morphology
Etymology
Jackscrew comes from joining jack and screw: jack is a tool used to 'lift' heavy things, like a car jack, and screw is a piece with a spiral that you turn. So, a jackscrew is a jack that works by turning a big screw to raise, lower, or move a heavy load.