Sean-bumble-bee
Core User of DJI
Flight distance : 15997 ft
United Kingdom
Offline
|
I think I should have stopped the motors first and caught the drone as it fell.
Just incase you were serious about trying to stop the motors in mid air. With a controller set to joystick mode 2 then as a solution to your problem the above WILL NOT WORK. I have not worked out what the CSC does or its position in the other joystick modes.
Unfortunately, elsewhere, I have seen the CSC idea propsed as a serious solution to a boat landing, it's a recipe for disaster.
Why will it not work?
1) With the "emergency motor stop" option set to "Anytime" or the equivalent, the CSC must be held for around 1.7 seconds before the motors will stop. During those 1.7 seconds you are commanding full reverse, full sideways, full yaw and full descent, meaning the drone will move horizontally an appreciable distance before the motors stop and, by the end of the 1.7 seconds, be moving at the speed limits of the flight mode. It will then fall whatever height remains with a gradually decaying horizontal velocity.
Unless you own large boat I think your drone would be likely to end up in the water or rigging and certainly nowhere near your hand.
2) If the "emergency motor stop" option set to "emergency only" then the CSC is UNLIKELY to stop the motors at all and all the above horizontal motion will apply.
On a moving and rocking boat the catch and flip may be your only appoach to stopping the motors. The normal methods are design for a 'stationary' drone. If the drone senses movement those methods may not work and the "Anytime" CSC approach has too short a delay period to risk having "Anytime" set as the active option whilst in normal flight.
|
|