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RTH..Strange happining!

Firestat

Well-Known Member
Join
Jul 8, 2017
Messages
50
Age
71
Hello, all.

Before I had the Spark fully operational, I decided that I would hit the fly button on the app. (brave move for not knowing what I was doing). The aircraft was sitting on a four foot table out on the deck. Instead of going up 4 feet, as I understand it would do from the ground, it went up 8 feet, out of reach for me. Man, I was in trouble.

Now here is the strange part. I closed my eyes and hit the RTH button on the app. I thought that it would go up 20 or 30 meters, which would have been a disaster as there were trees just off the deck. Instead, it landed from flight without going up.
Is that normal? I was glad it came right down.

Firestat
 

msinger

DJI Drone Expert
Approved Vendor
Premium Pilot
Join
May 27, 2017
Messages
2,836
Loc
Harrisburg, PA (US)
Web
www.Spark-Help.com
I closed my eyes and hit the RTH button on the app. I thought that it would go up 20 or 30 meters, which would have been a disaster as there were trees just off the deck. Instead, it landed from flight without going up.
Is that normal?
It's normal if the Spark was within 65 feet of the home point.
 

Fantomas

Member
Join
Jun 20, 2017
Messages
10
Age
59
Here's the real deal for the Spark:

RTH Triggered
-------------------

< 3m -> Land

> 3m but < 20m with "RTH at Current Altitude" option:
- Disabled(default) -> Land
- Enabled -> Raise at 2.5m (if needed), then RTH

> 20m
Height < Failsafe Altitude -> Raise at Failsafe Altitude then RTH
Height > Failsafe Altitude -> RTH

Careful if > 100m, Obstacle Avoidance is disabled.

That should make things a little clearer :)
 

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