4.101 RC - List of fixes

[PE_Tihi]

Originally Posted by JtD

The Spitfire has a CoG that's somewhat rearward. A bit more than on most other planes. This means that any force input will give you a larger effect - be it control input, adverse yaw or even gyroscopic effects. It also gives the plane a considerable nose up tendency.

That's all there is to it.

The longitudinal (pitch) stability you are describing here, has nothing to do with the adverse yaw- which is a yaw problem, obviously.

It is quite clear DT, among other things moved the CG position backwards. That this brought a big change in the plane's trim is no big credit to them. The horizontal tail of any plane is designed so that it's negative angle of attack produces exact amount of downwards lift to compensate the nose down moment the main wing lift produces in the cruising flight.

Take a look at the picture below. A plane always rotates around the CG - imagine it fixed in space.

A plane with a normal load requires only a little or no pitch trim in a cruise. Much trimming is necessary at quite low or high speeds.
A strongly trimmed elevator has more trim drag, that s why no factory ever delivered such a plane DT did. The elevator AoA corresponds to a certain CG position. That is one reason why I doubt their FM.

If they changed Oleg's CG, they should 've changed the elevator AoA too, to minimize the trim drag.
Now I should trust their stability rendering, which is a more complicated issue by far?

CG position of the Spit isn't something one has to guess-am sure anyone googles it out in 5 minutes. DT discovering here something unknown to Oleg doesn't sound very probable to me.

I can well imagine stability of the Spit and all other planes having been made easier at the game's beginnings, for rather obvious reasons-everyone still being new to a game already prohibitively challenging for many, etc. I doubt Oleg touched the CG position very much; increasing the damping factor instead sounds much more logical. DT ll learn fast, I suppose, but until they have learnt, the game may be over.

And that's it.