OPENTECHNICAL PUBLICATION OT-2026-000001583 Fire apparatus level indication system Published: 2026-09-15T19:06:49.409470Z Permanent URL: https://opentechnical.org/p/OT-2026-000001583 Categories: Lifting, Positioning & Manipulation > Lift Tables and Positioners ------------------------------------------------------------------------ ABSTRACT A system for a vehicle includes control system configured to acquire a first indication regarding a slope of the vehicle at a current location, acquire a second indication regarding a grade of the vehicle at the current location, and generate a graphical user interface providing (a) a slope indicator indicating whether the slope of the vehicle is within an operational slope range or a nonoperational slope range and (b) a grade indicator indicating whether the grade of the vehicle is within an operational grade range or a nonoperational grade range. ------------------------------------------------------------------------ OpenTechnical publication OT-2026-000001583 Published 2026-09-15T19:06:49.409470Z https://opentechnical.org/p/OT-2026-000001583