# Callouts and warnings

> SkyYoke's spoken V1, Rotate and V2 callouts, TCAS traffic alerts, windshear warning, GPWS terrain alerts and takeoff configuration reminders for Infinite Flight.

Source: https://ifkits.com/wiki/callouts/

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SkyYoke speaks the callouts a real flight deck would give you, and shows a banner for each. You can turn each one on or off in **Settings → Safety & feedback**. They play through the iPhone speaker even when the ringer switch is silent.

![A TCAS warning banner on the cockpit screen](https://ifkits.com/wiki/img/callout-banner.png)

## Takeoff callouts: V1, Rotate, V2

During the takeoff roll SkyYoke calls **"V1"**, **"Rotate"** and **"V2"** as you pass each speed. The speeds come from the [performance calculator](https://ifkits.com/wiki/performance/), the [TO/GA sheet](https://ifkits.com/wiki/takeoff-go-around/) or your own manual entry.

## TCAS traffic alerts

SkyYoke watches the other aircraft around you and follows TCAS II logic:

| Alert | You hear | Meaning |
| --- | --- | --- |
| Traffic advisory | "Traffic, traffic" | An aircraft is getting close; look for it |
| Resolution advisory | "Climb, climb", "Descend, descend", "Level off, level off", "Monitor vertical speed" and others | Fly the vertical speed shown to avoid it |
| Stronger advisory | "Increase climb", "Climb, climb NOW" | The conflict is getting worse or reversing |
| All clear | "Clear of conflict" | Return to your clearance |

On the [777-style PFD](https://ifkits.com/wiki/cockpit-displays/#primary-flight-display-pfd) the resolution advisory is drawn as red and green bands on the vertical speed scale.

## Windshear warning

Modelled on the Airbus reactive windshear system. Between takeoff and 1,300 ft, and from 1,300 ft down to 50 ft on approach, SkyYoke watches for a sudden loss of headwind. If it finds one, it says **"Windshear, windshear, windshear"** and shows a red banner. The real response is full TOGA thrust and following the flight director until clear.

## GPWS terrain alerts

The ground proximity warning system covers modes 1 to 5:

| Alert | Warns about |
| --- | --- |
| "Sink rate", "Pull up" | Descending too fast close to the ground |
| "Terrain, terrain", "Pull up" | Closing on rising terrain too fast |
| "Don't sink" | Losing altitude just after takeoff or a go-around |
| "Too low, gear", "Too low, flaps", "Too low, terrain" | Close to the ground without landing gear or flaps set |
| "Glideslope" | Below the glideslope on an ILS approach (softer volume) |

A red **PULL UP** or amber flag also shows on the PFD.

## Real Airbus sounds [Airbus]

In Airbus aircraft, TCAS, GPWS and windshear alerts use recordings of the real Airbus voices instead of a synthesised voice.

## Takeoff configuration reminder

During a managed climb, SkyYoke reminds you to clean up with **GEAR UP**, **FLAPS — RETRACT** or **GEAR UP · FLAPS RETRACT** if the gear or flaps are still out.

## Speed limit callouts

The [Violation Avoidance System](https://ifkits.com/wiki/violation-avoidance-system/) says "Speed limit, two forty", "Speed, leveling off" and "Speed, approaching ten thousand" as it works.

## The voice

Callouts use the best English voice installed on your iPhone. For a more natural voice, download a Premium English voice in the iPhone's **Settings → Accessibility → Spoken Content → Voices → English**. SkyYoke picks it up automatically.

> **All callouts are simulator aids, not real-world safety equipment.**