Center Pedestal

Build log for the 737 MAX center pedestal: throttle quadrant, flap lever, trim wheel, and radio stack.

6 min read Updated 2026-03
Boeing 737 MAX

Overview

The center pedestal sits between the two pilot seats and houses the throttle quadrant, flap lever, speed brake lever, trim wheel, and the radio management panel (RMP) stack.

Status

Planning — throttle quadrant design is in progress.

Assemblies

Throttle Quadrant

  • Two throttle levers (full travel, Hall-effect sensors)
  • Reverse thrust buckets (motorised detents planned)
  • A/THR disconnect buttons

Flap Lever

  • 7-position: UP, 1, 2, 5, 10, 15, 25, 30, 40
  • Laser cut gate with detents at each position
  • Reed switch per gate position

Speed Brake

  • Armed / flight detent / full positions
  • Hall-effect linear sensor

Trim Wheel

  • 3D-printed wheel with rotary encoder
  • Motorised feedback planned for a future phase

Radio Stack

  • COM1/COM2, NAV1/NAV2
  • LCD + encoder per radio
  • MobiFlight WASM module for freq management
Gear Lever