reALIGNed said:
Hi guys, I have a really stupid question (I think). I've been following this thread from the beginning and I like the idea of an "improved" propeller. My question is.........why is it necessary to adjust the gains? Doesn't this tame it down to stock behavior, and if so why the swap? I think I missed something along the way or read too deep, can someone please explain it...in simple terms :lol: , thanks. Btw, my interpretation is, if you take out the four cylinder engine in your car,(standard props) drop in a V-8,(PV2 props), unplug four spark plug wires................your back to a 4 cyl. (See what I mean, I'm lost)...........hellllllllpp.
The best analogy for gains I can come up with is changing how fast your reflexes are. High gains are like very fast reflexes - you respond very quickly to changes, can catch keys being dropped before they hit the ground, but maybe you act before you think and deck someone when they tap you on the shoulder. Get too fast and autonomic and you're twitchy and overreactive. Slow gains are slow reflexes. Movements are smoother and more deliberate, but get slow enough and you can't react fast enough to get out of the way of an approaching car.
Gains are like that for each of the directions your quad travels. High gains react faster and more aggressively to changes, low gains do the opposite. They don't really change the power output at all (if your Phantom is just too heavy to hover, higher vertical gain won't fix that, if you can't hold position in constant wind, higher pitch/roll gain won't overcome it). It's best not to blindly plug in some preset set of gains when you change your props. You have to see how those props effect your Phantom's behavior, and
if needed, adjust your gains (it can be either up or down) to optimize that behavior. You may prefer the new props with your old gains, and within a fairly wide range of operation, gains are personal preference. You only really "need" to change your gains if they're out to the point where they introduce dynamic instability during flight, and that could be at different points for different Phantoms.