Removable horizontal stabilizer for helicopter

摘要

An easily removable and lightweight horizontal stabilizer configured to provide aerodynamic stability for a rotorcraft. The horizontal stabilizer comprising a spar removably coupled to a tailboom with a removable spar attachment means, the spar being located transversely through a tailboom opening and configured to provide structural support for at least a first horizontal airfoil and a second horizontal airfoil. The first and second horizontal airfoils are configured to fittingly receive the spar so that the spar fits at least partially inside the first and second horizontal airfoils. The first and second horizontal airfoils extend outboard from the tailboom to provide aerodynamic pitch stability.

主权项

1. A removable horizontal stabilizer configured to provide aerodynamic stability for a rotorcraft having a tailboom, the horizontal stabilizer comprising:
a spar configured to be transversely located at least partially inside an opening in the tailboom; a removable spar attachment member for structurally attaching the spar directly to internal structure of the tailboom; a horizontal airfoil adapted to fittingly receive the spar; a removable airfoil attachment member for structurally attaching the first horizontal airfoil to the spar; and wherein a primary structural load path translates loads from the horizontal airfoil directly to internal structure of the tailboom through structural contact between the spar and the horizontal airfoil, the horizontal airfoil avoiding contact with skin around the tailboom.