How do mass, drag, angular drag, and gravity values relate to real world values. For example, mass defaults to 0.8. What does that mean in terms of real world mass? How many grams is that?
Mass is roughly in kg. That is, a mass of 0.5 would equal about 500 grams.
Drag and angular drag are more arbitrary values (related to air resistance).
The higher the drag the more the movement of the quad slows down.
The higher the angular drag the more the rotation of the quad slows down.
Generally speaking the most important thing is to get the feel right (as opposed to trying to get numbers to directly match reality).
On the same topic, I'm trying to adjust the settings to get a more accurate "feel" compared to my quadcopters and one thing I noticed is that in the sim, the model seems to keep rotating briefly after I do a roll. Compared to real life, it feels like there isn't enough "D" in the PIDs.
Is this a setting that I overlooked or would you be willing to offer the setting as an enhancement? I'm looking for sharper stops when I center the stick.
Also, I'm currently flying with a USB radio that came with another sim, not my DX8 and I have no expo settings on the actual radio, so I was wondering if there is a setting in the sim. I only see an option to enable or disable expo, but not an option to tune it. I ask because I tend to fly with a ton of expo and high rates.
Thanks so much for making this great sim! In just a couple hours of use, it has improved my real world FPV skills!
The higher the "angular drag" value, the quicker the rotation will stop. It will also make it require more force to rotate, so you will probably need to raise the roll/pitch rates too.
That's correct, the expo setting in the sim is either on or off, so the only way to tune it perfectly to your liking is to use a radio where you can adjust it.
Glad to hear you liek it and that it has been of good use to you!