Dji Phantom 2 Vision + User Manual download pdf (Page 18)

F- Flyaway. The worst nightmare of all pilots...!

A flyaway is a scenario where the Phantom pilot will suddenly lose control of the Phantom during a flight

resulting in lost or damaged units. If your Phantom starts flying away ignoring your input, try these steps,

only progressing if no success:

Need to Know: If you lose GPS while flying, the Phantom will enter ATTI mode and MAY get blown away

(drifting in the direction it was flying before losing GPS). This is not a Flyaway, it is normal. Just follow the

instructions in the GPS Lost section.

1- Immediately switch from GPS to ATTI mode by putting S1 in the middle position.

You will be flying without GPS. Meaning the Phantom will not automatically hold its horizontal position and

without position hold it will drift. Home Lock(HL) will not work since Home Lock changes to Course Lock if your

S1 switch is in ATTI.

If the Phantom seems to respond in ATTI mode and you have some control, manually increase altitude quickly

to avoid obstacles and try to bring it back. From time to time, retry GPS mode (S1 Up) to see if you have

regained control in GPS mode.

If the Phantom is out of sight and you are unable to use FPV (DJI Vision Camera feeds has stopped) you won't

be able to fly it in ATTI mode (you’ll be blind as a bat), go to step 2.

2- Initiate the FAILSAFE by putting S1 in the down position or by turning off the Remote Control.

If GPS is lost, the Phantom automatically switches to ATTI mode. It will attempt to land slowly wherever it is

(possibly land in a tree or crash into whatever the wind blows it into). BUT a soft landing is better than a drop.

If it has GPS or regains GPS, it may fly home. In which case you might be able to get back control by flipping

S1 to ATTI, then to GPS.

3- Send the CSC to kill the motors. You’d rather have a crash landing than a lost Phantom.

Very last resort. If it's out of sight this will prevent it from getting further away but if it's out of sight you will not

know if Step 2 was effective so be very careful with this one.

You should try ATTItude mode before Failsafe, as several people have had no luck with Failsafe even with good

satellites connection. If the Failsafe does not work, kill the motors before the Phantom goes out of range. It is

unlikely you will be able to search several square miles and find your Phantom when it goes in a changing direction

at full throttle.

Be sure to read the “How to avoid flyaway / Recover from a flyaway” sections.

G- Vortex Ring State (VRS) (Text by damoncooper)

If you are a new Phantom pilot and don't know what VRS is or how to avoid it, you may risk losing your investment

to a mysterious type of crash that will appear like your quad just dropped from the sky for no good reason.

Wind speed and direction, stick inputs (rapid yaw has been implicated on multiple occasions) and a host of other

factors make VRS a possibility. The results are frequently a crash or loss, especially if flying long distance or over

water. If you want to know more about VRS mechanics: Settling with Power

I think it's critical that pilots (new and old alike) be able to recognize the early signs of VRS and have a VRS

"escape plan" they are prepared to execute immediately.

Be sure you watch:

- Quadcopter "Wobble of Death": VRS Recovery and Avoidance

and

- How to avoid/recover from Vortex Ring State

Recognizing VRS

VRS (Vortex Ring State) is most often caused by descending straight down too quickly.

If flying line of sight, it can look like a "wobble" or oscillations around one or more axis. On FPV, the signs are

usually the landing gear oscillating in and out of view and/or uncontrolled yaw movements. The first signs can

quickly be following by a rapid uncontrolled descent/drop from the sky.

Escaping VRS

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Dji Phantom 2 Vision + User Manual Page 18

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