[HN Gopher] Simulating a 2D Quadcopter from Scratch
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       Simulating a 2D Quadcopter from Scratch
        
       Author : daww
       Score  : 12 points
       Date   : 2026-04-08 20:25 UTC (2 days ago)
        
 (HTM) web link (mrandri19.github.io)
 (TXT) w3m dump (mrandri19.github.io)
        
       | daww wrote:
       | Author here.
       | 
       | I've spent the last six months replicating the paper "Champion-
       | level drone racing using deep reinforcement learning" and now I'm
       | writing down the blog posts I wish I had along the way.
       | 
       | Any feedback is welcome, especially as I'm a bit unsure if I
       | struck the right balance between being concise and not requiring
       | too many prerequisites.
       | 
       | Also if you're working on RL and robotics (especially aerial),
       | let's connect!
        
         | dvh wrote:
         | Isn't it just bi-copter?
        
         | avidiax wrote:
         | I assume you are going to start introducing all the 2nd and 3rd
         | order effects? One big one is ground effect, and another is
         | vortex ring state/settling with power and the related
         | translational lift, and the props themselves have p-factor and
         | the dirty air effect for the rear props.
        
       | kabir_daki wrote:
       | Physics simulations from scratch are great learning projects. Did
       | you implement your own PID controller for stabilization? That's
       | usually where things get interesting -- tuning the gains without
       | it oscillating to death.
        
         | andai wrote:
         | Your voice betrays you, Claude!
        
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       (page generated 2026-04-10 23:00 UTC)