Different modes – explained

Servo Hook Mode (F1A / F1H) Configures a servo-driven hook with adjustable opening and closing delays (a closing delay is required for proper operation). Requires two switches: Switch 1 (front position) and Switch 2 (hook opening).

  • Ready State: Closing Switch 1 for the first time arms the timer and closes the hook.
  • Circle Tow: Triggered when both Switch 1 and Switch 2 are open.
  • Straight Tow: Active when Switch 1 is closed.
  • Zoom: Triggered when Switch 2 closes. The hook opens after the designated Hook Open Delay (can be set to 0).
  • Return to Straight Tow: If Switch 2 opens while Switch 1 remains closed, the timer reverts to Straight Tow, and the hook closes after the set Hook Close Delay. (Note: A delay is necessary if you intend to re-close the hook).
  • Launch 1: Triggered if Switch 2 opens and Switch 1 is either open or opens before the Hook Close Delay elapses.

Mechanical Hook Mode (F1A / F1H) Disables servo hook delay settings for use with mechanical towing systems. Requires Switch 1 (front position) and Switch 2 (opening).

  • Ready State: Closing Switch 1 for the first time arms the timer.
  • Circle Tow: Triggered when both switches are open.
  • Straight Tow: Active when Switch 1 is closed.
  • Zoom: Active when Switch 2 is closed.
  • Launch 1: Initiated when Switch 2 is closed and Switch 1 opens (or is already open). Switch 2 must remain closed.

Single Switch Mode (F1B / F1C / F1Q or Mechanical F1A / F1H) Disables towing settings and repurposes the hook servo to control a motor brake (F1Q).

  • Power-Up: Servos move to their Start positions, and the brake servo (hook servo) opens.
  • Arming: Closing Switch 1 for the first time engages Launch 1 settings, though the countdown remains paused.
  • Launch Activation: Releasing Switch 1 (opening it) starts the Launch 1 timer.
  • F1Q Energy Limiter Integration (Switch 2): Closing Switch 2 during any launch phase (Launch 1 through Launch 5) instantly advances the timer to Flight 1 mode.
  • Brake Engagement: In Flight mode, the brake servo closes after the pre-configured delay.