*This post is dedicated to my personal findings of the science behind and within hypno plane design. This post will express personal opinions along with some data and planes uploaded as evidence. I plan to update this post with new findings when necessary.
Part 1, pitch: Pitch. Arguably the most important axis of control a plane needs. I have exprimented with pitch since my second post. Its long been a strong suit of hypno planes; and for a good reason.
Balanced center of mass- through test planes (link here*) I have found that you can acheive better pitch rates (a term I will be using) by having your com higher or lower depending on pitch direction. Pitching down favors a lower com and pitching up favors a higher center of mass.
Continued- Through the use of vertical stabilizers holding up an elevated set of large, generally pitch oriented wings, (link here*) you get a better all around experience when pitching. This is due to two factors. 1: higher center of mass means pitching up (which is the most common way of pitching and should be priority.) Is more responsive and receives better rates, and 2: a reason we have not touched on is the position of control surfaces relative to the com. Note that these are preliminary observations and is subject to more testing and clarifications. But back to 2, the level your com is at appears to influence how much pitch control surfaces get in terms of leverage. Pitch surfaces above com seem to achieve higher rates pitching down then up. I have not tested how this affects leading edge control surfaces or forward pitch surfaces ( in front of the com).
All for now. Next roll then yaw then stability then combining all the above into one plane.
Ps check out my newest plane which achieves an incredible level of pitch in both directions!
(https://www.simpleplanes.com/a/eRGWkZ/Frosted-Falcon)
Gotcha
@F104Deathtrap yes, com and col relationships are useful to know, but I am not covering these here :)
Center of mass affects pitch rate based on how far forward it is from the center of lift (further forward, the sloweer and more awkward turns are, but the more inhereantly stable the craft will be, useful for high speed). It affects how quickly you can pitch up (and whether your plane tends to level off, pitch up or nose down in normal flight) based on it's vertical location relative to the center of thrust. Chances are, you should keep it ABOVE your center of thrust because people really don't like aircraft that nose down every time you gun the throttle.
Thanks @railfanethan!
@lowdetail