Wills Wing Fusion 141, Руководство по эксплуатации для владельца

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Flight operation of the Fusion should be limited to non aerobatic maneuvers; those in which the pitch
angle will not exceed 30 degrees nose up or nose down from the horizon, and the bank angle will not
exceed 60 degrees. The Fusion is generally resistant to spinning, but may spin from a stalled turn,
especially if the VG is adjusted at or near the tight end of the range, and the rate of application of pitch
is moderately rapid. The Fusion can be induced to spin at any VG setting. Recovery from a spin
requires unstalling of the wing, and it is therefore critically important that in the event of a spin, no
application of nose up pitch control be held. The Fusion will recover from a spin once control pressures
are relaxed. As the nose lowers and the angle of attack is reduced, the stall will be broken and the spin
will stop. However, such recovery will consume significant altitude, and will result in the glider
assuming an unpredictable heading. Recovery from a spin may therefore involve a flight trajectory
which intersects the terrain at a high rate of speed. An aggravated spin could result in loss of control, in
flight inversion, and structural failure. Therefore no attempt should ever be made to deliberately spin
the glider. The Fusion provides the pilot with a high degree of pitch authority, in combination with a
very low twist sail. As a result, it is possible by pushing fully out on the bar to produce a very aggra-
vated and severe stall, the recovery from which may involve very severe pitch down rotation, the pilot
going weightless, and the glider recovering via an unpredictable trajectory with a significant altitude
loss. Therefore, full arms extension aggravated stalls should not be induced except on landing flare.
The maximum steady state speed for a prone pilot in the middle of the recommended weight range full
forward on the control bar with the VG set full tight is approximately 58 m.p.h. for the Fusion. The
placarded speed never to exceed for the Fusion is 53 m.p.h. An airspeed indicator is provided with the
Fusion and should be used by the pilot as an aid to comply with the placarded limitations.
The placarded maximum maneuvering speed, and the placarded maximum rough air speed of the
Fusion are each 46 m.p.h. This speed will be achieved with the control bar basetube approximately at
the waist. This speed should not be exceeded in anything other than smooth air. No abrupt maneuvering
or control inputs should be made at anything above this speed.
The stability, controllability, and structural strength of a properly maintained Fusion have been deter-
mined to be adequate for safe operation when the glider is operated within all of the manufacturer
specified limitations. No warranty of adequate stability, controllability, or structural strength is made
or implied for operation outside of these limitations.
The stall speed of the Fusion at maximum recommended wing loading is 25 m.p.h. or less. The top
(steady state) speed at minimum recommended wing loading for a prone pilot with a properly designed
and adjusted harness is at least 45 m.p.h.. All speeds given above are indicated airspeeds, for a prop-
erly calibrated airspeed indicator mounted in the vicinity of the pilot. Wills Wing provides such an
airspeed indicator with the glider. It is strongly recommended that the pilot fly with such an airspeed
indicator. Refer to the section on using the airspeed indicator for further information on speeds to fly.
The recommended hook in pilot weight range for the Fusion is:
Fusion 150: 150 - 275 lbs.
Fusion 141: 135 - 235 lbs.
Be advised that pilots with hook in weights of less than 20 lbs above minimum will find the Fusion
more demanding of pilot skill to fly, and that pilots hooking in within 20 lbs of the maximum will
experience some relative degradation of optimum sink rate performance due to their higher wing
loading.