RE: Hawker Hunter
Here’s a CG-calculation which is very accurate and well proven. It is universally applicable for all:
trapezoidal wings
rectangular wings
back-swept wings
wing-only planes
You can even calculate the CG of wings consisting of multiple trapezoids.
Most important: The CG (Schwerpunkt) is always in front of the Center of Neutrality, namely 8% to 10% of distance ‘d’.