[Jonty30]

Ok. Wrap an A-117 around it.

I fail to understand how the shape of it is essential for it’s function. I understand that it’s a tough plane to down, but who is it’s shape not modifiable?

[Oberon]

Aircraft design is an exercise in compromise. Whatever feature set you choose to optimize for a mission, you're sacrificing other features and capabilities to get that.

The big wings on the A-10 are responsible for its high lift at low speed, necessary to carry big ordinance, ammo, an ample fuel supply, and an armored cockpit. The big control surfaces in the tail ensure stability and low-speed maneuverability, essential for its close-air-support mission. The F-117 with its faceted flying-wing shape is so inherently unstable it requires a computer to manage thrust and control surfaces just to keep the thing in the air, which makes it completely fly-by-wire... the A-10, on the other hand, actually has manual (non-power-assisted) capability redundant to its hydraulic power-assisted flight controls, meaning a pilot can lose ALL power assist to the ailerons and tail and still fly home and land the plane. This has happened in combat.

The shape of the aircraft is important; it's built that way for reasons, and those reasons make it as effective as it is.

[MortMan]

the shape of the A-10 is dictated by its mission. The square wings are designed for optimized lift at low speed. The placement of the engines is designed for survivability.

Wrapping the F-117 shape around it makes the aircraft unable to perform its role.