KerbalX

Longer, nicer looking fairing nosecone and tailcone
Better Aesthetics (More balanced and sleek)
Better Tuned Controls
A New, completely redone H2A+1 3-Axis TVC (Thrust Vector Control) System, the original only had 2 axes of vectoring
All of the engines now gimbal (Pitch & Yaw for the center engines, Roll for the wingtip engines)
Centralized Flight Computer stored in the nosecone
Better use of airframe weight (Only 200kg mass increase with all of the new features)
Improved Post-Stall Maneuverability

Oh yeah, It’s back and better than ever! Expect this plane to perform the most complex of aerobatic maneuvers, such as:

Hovering
Rolls (Aileron or Barrel Rolls)
Tight Loops and Stalls
Pugachev’s Cobra
Flatspins
Knife-Edges and Knife-Edge Spins
The funny maneuver from Top Gun Maverick
and WAY more, the possibilities are literally endless!

This is a pretty quickly put-together release from me, but it’s a long awaited one at that! The Acro-X was initially just a fun project that I released on KerbalX but it ended being a DLA classic that lives on to this day. It’s exploits with DLC Hinge Thrust-Vector-Control systems have inspired a lot of other very impressive craft, most notably Kyloporg‘s experimental jets and SU-35, using the same technology, just scaled up.
I’m really glad that my craft have inspired a lot of interesting ideas and concepts, and I hope this one will too!
And plus, if you really want to be a supermaneuverability nerd, try out this NASA article here.

Do a Barrel Roll!

(StarFox reference)

A stock aircraft called Acro-X V2. Built with 58 of the finest parts, its root part is Mark2Cockpit.

Built in the SPH in KSP version 1.12.5.

Acro-X V2: Control Modes

N - Neutral

A - Yaw Left

S - Pitch Up

E - Roll Right

W - Pitch Down

Q - Roll Left

Additional TVC System Info

The Acro-X’s H2A+1 Thrust Vector Control System is fairly simple by construction and programming, using the KAL-1000 computer family as the basis. 3 KAL units are located in the nose of the aircraft, with one for each axis of control. The Acro-X is equipped with a total of six G-00 electric servo-hinges, the center two engines have 2 hinges each (one for Pitch and one for Yaw) while the wingtip engines have 1 each for Roll. The angle stops in the hinges are set at 20 degrees in any direction, but the customer may alter the TVC deflection at their taste.

D - Yaw Right

<- The H2A+1 Flight Computer, the heart of the Acro-X’s Thrust Vector Control System. It’s fully re-adjustable and re-programmable to achieve peak performance, but the factory calibration is recommended for easiest flight experience.