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The cruciform tail is an aircraft empennage configuration which, when viewed from the aircraft's front or rear, looks much like a cross. The usual arrangement is to have the horizontal stabilizer intersect the vertical tail somewhere near the middle, and above the top of the fuselage .
Cruciform tail – The horizontal stabilisers are placed midway up the vertical stabiliser, giving the appearance of a cross when viewed from the front. Cruciform tails are often used to keep the horizontal stabilisers out of the engine wake, while avoiding many of the disadvantages of a T-tail .
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Most examples of the Model E followed the pattern of the "headless" Model Ds, with elevators and horizontal stabilizer carried together in the cruciform tail unit. The large ailerons were mounted in the interplane gap, their span continuing past the wings themselves, and as before were controlled by a shoulder yoke accommodating sideways ...
The Aerodrome's other features, however, especially structure and control, left much to be desired. The Aerodrome had a primitive control system that included a cruciform tail and a centrally-mounted rudder. [3] Langley again used a houseboat catapult for launch.
The 2,100 nmi-range (3,900 km), 20,200 lb (9,200 kg) MTOW jet is powered by two 3,650–4,080 lbf (16.2–18.1 kN) PW545 turbofans, has the cruciform tail and unswept supercritical wing of the Citation V (560), and a slightly shortened Citation X stand-up cabin.
It retains the Model 680 Sovereign wing, twin P&WC PW306D turbofans and cruciform tail and adds a new stand-up circular fuselage with a flat floor, which was kept in the stretched, re-winged, and re-engined Cessna Citation Longitude.
A cruciform tail was carried on an uncovered boom extending from the wing. The 8 ft 6 in (2.59 m) propeller was mounted just below the wing's leading edge and driven by a chain to the 35 hp (26 kW) Green engine below.