Neill Aircraft Company Neill Aircraft Company (NAC) is a financially stable company, providing "Build-To-Print" Parts, Assemblies, & Kitting services to the Aerospace community... in supporting the Airframe Primes on all aircraft platforms. This includes both fixed wing and rotorcraft. Our capabilities include Model Based Definition approvals and engineering... to support all new or existing programs. Our products cover a wide spectrum from formed extrusions/skins, table top assemblies, latch covers, window frames, up to Engine Inlets, Exhaust...