5 ms·
Unlike a bullet you could hear an RC airplane coming.
by abz10 5y ago
Unlike a bullet you could hear an RC airplane coming.
- korse 5y agoActually this isn't a big problem. Quads or RC planes at a reasonable height aren't audible. Add in night and lack of running lights and no one is going to notice. If you are using a wing, then you just program your robot to come in high, cut it's engine and continue on a glide trajectory to the target. The flap servos make nearly no noise. If you've got a quad, come in fast and basically huck the vehicle at the target. Ardupilot + ROS make this all relatively straightforward to implement and provide an easy way to interface with necessary sub-systems.
- abz10 5y agoArdupilot will not hit a human size target. People can barely do it. You're not going to lob a tumbling quad at a target with any accuracy that's a joke. To do this with any reliability you need custom software and probably hardware. It'll look more like a smart munition. But it'll also be more difficult than strapping a knife to a RC plane.
- korse 5y agoFirst, we aren't talking knives. Second, who said the quad was tumbling? Significantly cutting engine speed and removing significant lift forces on a quad in order to kill the buzz doesn't mean it will start wildly gyrating. Third, Ardupilot will get you within a few feet of a specified point with a good enough vector and speed. Luckily you can use a subroutine (secondary control program) to handle the final approach from the 'point' to the target.
- abz10 5y agoWe literally are talking knives on RC planes; see the comment I originally replied to. You are moving the goal posts. A quad will tumble with the motors off, the whole thing is a significant lift force. It was a big problem in early controller software where throttle dead zone would turn off the props. A problem I personally experienced. Maintaining any semblance of stability requires active adjustment. And no, Ardupilot will not get anything going at high speed to within a few feet in 3d space.
- LargoLasskhyfv 5y agoNot when it is diving down vertically, from high above.
- abz10 5y agoOff the shelf RC airplanes have terrible unpowered terminal velocity. You'd have to custom build to get anything decent. Which is more difficult than strapping a knife to a RC plane.
- LargoLasskhyfv 5y ago3D-printer to the rescue!
- mLuby 5y agoLike this RC airplane (drone) modeled after a WW2 dive bomber. https://youtu.be/ogxKvQeVqqc?t=583 https://youtu.be/ogxKvQeVqqc?t=583
- LargoLasskhyfv 5y agoLol, yes! But the Stuka (Sturzkampfbomber) wasn't what I had in mind. In reality they were (retro)fitted with gadgets that made them whine/screech loudly when doin' the dive...