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.
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.
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, the TO/GA sheet 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 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 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.
Note
All callouts are simulator aids, not real-world safety equipment.