F.1.15 Component Envelope
The area that is inside a plane from the top of the Main Hoop to the top of the Front Bulkhead, plus a plane from the top of the Main Hoop to the rearmost Triangulated structural tube, or monocoque equivalent. * see note in step F.1.13 above
F.1.13 Note: * If there are no Triangulated Structural members aft of the Main Hoop, the Rollover Protection Envelope ends at the rear plane of the Main Hoop.
Explanation
Similar to the Rollover Protection Envelope, but note that the tangent plane here is from the Main Hoop to the Front Bulkhead, not the Front Hoop. Also note that the Component Envelope does not exist within 350 mm from the ground.