Home » Training » Trailer Glossary » Landing Gear Landing GearTrailer landing gear refers to retractable legs that support the front of a semi-trailer when it is not coupled to a tractor. Click to share on Facebook (Opens in new window)Click to share on X (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)