Maaaaaaybe.
Well, probably.
Looking at the spec sheets for these, the command formats are pretty much identical, but the timing is a bit . . . different. The W2812B's spec a reset command (which is effectively "no new commands, so go ahead and follow orders") of 50us or more, where the WS2813 specs the reset pulse at 5 times longer -- 250us or more. (and supposedly the longer reset allows you refresh the new LEDs faster?!?)
On the positive side, this reset latch is a minimum time, so the longer it takes the processor between color changes, the better. I'm not sure what the *flight's refresh rate is, but it's probably slow enough it will work with either chip set.
What Psy says, still holds true, though -- you'll need to drop the 5v power most ESCs provide to be within a few tenths of a volt above the Flight Control Board's logic level. Adding in a signal diode inline with power is a good way to drop 0.7v and more often than not, is enough.
If the current draw from too many LEDs becomes an issue, using an adjustable regulator trimmed to ~4v is a better strategy. My typical go-to part for the task: http://www.banggood.com/5Pcs-Mini-DC-Adjustable-Power-Supply-Buck-Module-Step-Down-Module-p-952402.html
One of these inline should be plenty to drive the 32 LEDs a *flight board can address.
