F-16 XL Cranked-Arrow Wing

F-16 XL
Cranked-Arrow Wing

In February of 1980, General Dynamics made ​​a proposal for a fight with a hawk with wings, a severe correction, which was originally proposed for a supersonic airliner. This project is known, are cheaters (Cruise Supersonic and avoidance), and later as F - 16XL wing delta accuracy of a cranked-arrow, with a total surface of 633 square feet (more than twice the area of wing F - 16 standard).




The purpose of this research is to explore innovation and the wing planform shape of the curve in order to efficiently cruise at higher efficiency, while providing flexibility in the opening battle of the transonic and supersonic speeds. The design is intended to provide low drag at high supersonic SubSonic without loss of maneuverability at low speeds.And aircraft structures.
The program is funded initially by the manufacturer and with the conversion of the FSD F - 16A of the end of 1980, the U.S. Air Force and General Dynamics agreed in the cooperative with the Air Force, the third and fifth FSD F. 16s - (A - 3 (# 75-0747) and A - 5 (# 75-0749)) for editing in the original F - 16XL.
The body length is about 56 inches (142 cm) to 54 feet, 1.86 inches, a '2. The new body is at the crossroads between the main body of the third: one 26 inches (66 cm) which was separate to the back of the insert, and 30 inches (76 cm), the next one, however, the 26in. The latter is not continuous from bottom to top. Below the wing to 26 inches is inserted just aft of the wing above the main landing gear, which is still 26 inches long, but put 26 inches beyond the bottom end of the wing. This makes it look like a backward "Z" body length to enable the tail to be canted by 3 degrees is necessary to prevent the nozzle of the engine featured in the runway during take off and landing.


XL has no reason for belly fins as well. I obviously do not need them, since XL is in general more than the stability of the F - 16.
Inlet of the engine is affected by the rear extension at lower body 26in the extension of the body forward, 30in is applied to the body on the resulting F - 16XL engine 26in. longer than the standard F - 16A.
wing planform has changed in the cranked - Arrow right-wing (120% larger than the wing, F - 16 old) with extensive use of carbon composites. (In the upper and lower layers of the skin) to save weight. Weight savings of 600 £ flank one or several 272kg wing spar was designed with leading edge sweep angle from 50 º to 70 º and a 2800-pound (1,179 kg.) Heavier than the original. increase in the amount of internal (Both by the length of the body and its wings) are allowed for an increase of 82% of the capacity of the fuel in the wing area increased to allow incorporation of up to 27 stations to store it. It is clear, the length of the body associated with the XL does not stand for "extra large".
Through improved planform wing, and the optimization of the curve, setting the final offer of 25% in the ratio of lift to drag up more F - 16 supersonically and SubSonic update 11% of the management of the F - 16XL, which was reported to be quite different. from that of the standard F - 16 presented a much smoother ride at high speed and low altitude. Setting has matured into a powerful fighter with large wings that allowed the large number of weapons, including low external
The first of two F - 16XL's (# 75-0749) to amend, A - 5 (5th full - scale development F - 16A) has a single seat and is powered by turbofan F100 - 200 on its first flight. 3 กรกฎาคม 1982, McKinney for the control of James F - 16XL two (# 75-0747) is the power supplied by the 29000 lb.st General Electric F110 - GE - 100 turbofan aircraft was converted from FSD 3 (A - 3) has. been severely damaged in a landing accident. (Failure of rubber nose) during the Edwards Open House in August of 1980, the aircraft will be removed and a rubber nose and blow it into the case. The decision was taken to land with gear up Once the nose gear touched down, it dug into the lake bed and out. This is due to the end of a Radome at the leading edge of the bay, the device forward and scooped intale to carry the load consumption in the lake. In the process, it was ground off the line, despite the forward bulkhead. (Antennas, radar hangs and rubber gear, main) Radome was trashed and the equipment bay was ripped up when the plane arrives at Fort Worth for use in XL, it is. According to a new front end and the front two seats are created for this aircraft XL No 2 was first flown on October 29, 1982, piloted by Alex Wolf and Jim McKinney.