- Joined
- Jun 28, 2016
- Messages
- 213
- Reaction score
- 74
- Age
- 67
- Location
- Radford, Virginia
- Website
- fishcrow.com
I experimented with using a P4 to get a line in place. For climbing trees, a bow and arrow rigged with a fishing line is often used. That approach is effective, but in some cases it's necessary to thread the needle with a near perfect shot. I once made such a shot that placed the arrow just over the desired fork. As shown in the attached photo, I used electrical tape to attached a light-weight wooden dowel to the P4. This keeps the line away from the props, especially after dropping the line over a target and then bringing the drone down. I wouldn't recommend this approach, which could result in a crash, but it can be done with care. You need to have a helper to hold the line just tight enough so that the weight is all the way up. Just for fun, I tried a flight with the weight hanging. The drone is actually able to adjust for the modification and fly level, but there is feedback if the weight starts swinging. As you raise it, the rate of swinging increases according to the physics of a pendulum, and the feedback increases. If the weight drops a little ways below the top, the line with the weight and the line coming down will get tangled. So you really need to keep it all the way up. Then maneuver the drone into the right position, and let the weight drop.