This is an updated version of the previous P-39. Some alterations to the flight surfaces to make the "Cockpit" view a bit less nauseating. Roll rate has been reduced slightly along with a few other tweaks. I personally like the way this one lands. It's also interesting to pull up and reduce throttle in "Cockpit" view and let it stall.
If you wish to increase control authority just open the aircraft editor with "Advanced Properties" enabled and decrease "Blowback Factor" on the control...
