This allowed longitudinal trim in the absence of a separate horizontal stabiliser.
From the en.wikipedia.org
The tailplane comprises the tail-mounted fixed horizontal stabiliser and movable elevator.
From the en.wikipedia.org
The trimmable horizontal stabiliser was also modified to have increased span and more travel.
From the en.wikipedia.org
So, as Dr Serghides explains, doing without the horizontal stabiliser and vertical tail is not such a radical step.
From the economist.com
The entire empennage is rotated vertically to actuate the horizontal stabiliser, and sideways to actuate the fin.
From the en.wikipedia.org
A horizontal stabiliser or elevator, or tailplane, mounted at the tail of the aircraft, near the vertical stabilizer.
From the en.wikipedia.org
The Cherokee's tail seemed to be rocking on its own, and the horizontal stabiliser began to shimmy in its cranny behind the fuselage.
From the guardian.co.uk
A new wing, engines and a horizontal stabiliser were to be coupled with new composite materials and production methods applied to the fuselage to make the A350 an almost all-new aircraft.
From the forbes.com
He also constructed another aircraft, the Type VI, notable for its use of a rear-mounted horizontal stabiliser and also featuring dihedral in an attempt to obtain lateral stability.