re: prop wash

[エロ音声作品学者]

two questions:
1) why does prop wash default to off? i've never flown a real drone yet, but i find the game easier to control and more intuitive with it on vs. off
2) why does prop wash default to 42% on a fresh install? is this number the most realistic, does it mean anything in particular for this, etc. - I like prop wash at 100%, feels nicest, am i ruining myself for reality or something?

thanks

[Donik]

i would like to know the answers to these questions as well. new fpv owner here, learning the ropes first via Liftoff!

[JuniorDiscart]

Hi

Our flight and physics engineer that designed the built-in Liftoff flight controller was not convinced that the actual physical effect of propwash was as strong as a vortex effect as it is a flight controller being pushed to the extremes for a very brief moment in time to compensate the momentary forces. With the flight controller introduced in Liftoff 1.3.0, it automatically adjusts the PID controller settings to compensate perfectly for any target overshoots. Before this updated flight controller, it was required to PID tune the drone setup yourself, and many well tuned drones experienced a convincing propwash effect due to it being near-perfect. Once we ran the auto-tuner in the background, this effect disappeared because it compensates perfectly.
So that's why we've made it an artificial effect that people can turn on/off which applies an artificial effect on the drone, which approaches what it was before.

As to the default value, with regards to the text above, there's no good or bad value as it would've depended on how well the drone setup would've been tuned manually. And I guess it was a bit of a cheek in tongue to that 42 is the answer to everything. :)

[エロ音声作品学者]

Originally posted by JuniorDiscart:

Hi

Our flight and physics engineer that designed the built-in Liftoff flight controller was not convinced that the actual physical effect of propwash was as strong as a vortex effect as it is a flight controller being pushed to the extremes for a very brief moment in time to compensate the momentary forces. With the flight controller introduced in Liftoff 1.3.0, it automatically adjusts the PID controller settings to compensate perfectly for any target overshoots. Before this updated flight controller, it was required to PID tune the drone setup yourself, and many well tuned drones experienced a convincing propwash effect due to it being near-perfect. Once we ran the auto-tuner in the background, this effect disappeared because it compensates perfectly.
So that's why we've made it an artificial effect that people can turn on/off which applies an artificial effect on the drone, which approaches what it was before.

As to the default value, with regards to the text above, there's no good or bad value as it would've depended on how well the drone setup would've been tuned manually. And I guess it was a bit of a cheek in tongue to that 42 is the answer to everything. :)

So then, having this option off is the closest to realism, in the eyes of Lugus? Interesting

[JuniorDiscart]

Depends on your point of view, I suppose. If you take it from the point-of-view of the flight controller, it's more realistic if it's turned on, since it mimics the imperfections you'd experience in real life. If you take if from an external forces point-of-view that act on the drone, then turning it off is the more 'realistic' option.

[LuGus Studios]

A simulator works in the absolute perfect conditions of a clean virtual world, real life involves a whole bunch lf tiny little effects that a simulator can try to mimick, but will never be able to truly simulate. Ofcourse real life is the only "realistic" version.

Building a simulator involves two challenges: understanding the phenomena at play and attempting to simulate or reproduce them accurately. Simply acknowledging phenomena like propwash isn't enough; it's about comprehending their underlying mechanisms. Many real-world effects, like propwash, seem straightforward initially but are in fact complex engineering puzzles to solve.