MCVA565-549-021 Throttle Control Vernier-Assist

The McFarlane MCVA565-549-021 Vernier-Assist throttle control provides both rapid push-pull movement and fine rotary throttle adjustment in a compact control assembly.

Its Vernier-Assist design uses friction control rather than a threaded vernier mechanism. Push or pull the knob for coarse adjustment; rotate the knob clockwise or counter-clockwise for more precise setting changes. A friction lock holds the selected position while allowing the control to be overridden when required.

• Manufacturer part number: MCVA565-549-021
• McFarlane Vernier-Assist throttle control
• Push-pull coarse adjustment with rotary fine adjustment
• Friction-based operation with no threaded locking engagement
• FAA-PMA approved, as stated by the supplied product source
• Source-listed application reference: Cessna 172R and 172S

Confirm part-number applicability, configuration, and installation requirements against the aircraft's approved maintenance data before purchase or installation.