Wills Wing Sport 2 155, Owner'S Service Manual

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Technical Information and Placarded Operating Limitations
The Sport 2 155 has been tested and found to comply with the Hang Glider Manufacturers Association
(HGMA) Airworthiness Standards. At the time of publication of this manual, (May 2004) no documen-
tation package nor any application for a certificate of compliance has been submitted to the HGMA,
nor has a certificate of compliance been issued by the HGMA. The HGMA standards require:
1. A positive load test at root stall angle of attack at a speed equal to at least the greatest of:
a. 141% of the placarded maximum maneuvering speed
b. 141% of the placarded maximum rough air speed
c. 123% of the placarded speed never to exceed
for at least three seconds without failure.
The required speed for the Sport 2 for this test was 65 m.p.h..
2. A negative 30 degree angle of attack load test at a speed equal to at least the greatest of:
a. 100% of the placarded maximum maneuvering speed
b. 100% of the placarded maximum rough air speed
c. 87% of the placarded speed never to exceed
for at least 3 seconds without failure.
The required speed for the Sport 2 for this test was 46 m.p.h..
3. A negative 150 degree angle of attack load test at a speed equal to at least the greater of 30
m.p.h. or 50% of the required positive load test speed for at least 3 seconds without failure.
The required speed for the Sport 2 for this test was 32 m.p.h..
4. For the Sport 2 with a Vne of 53 m.p.h., pitch tests at speeds of 20 m.p.h., 37 m.p.h. and 53
m.p.h. which show the glider to be stable over a range of angles of attack from trim angle to 20
degrees below zero lift angle at 20 m.p.h., and from trim angle to 10 degrees below zero lift angle
at 37 m.p.h., and from 10 degrees above zero lift angle to zero lift angle at 53 m.p.h..
5. Flight maneuvers which show the glider to be adequately stable and controllable throughout the
normal range of operation.
Note: The Sport 2 has been designed for foot launched soaring flight. It has not been designed to be
motorized, tethered, or towed. It can be towed successfully using proper procedures. Pilots wishing to
tow should be USHGA skill rated for towing, and should avail themselves of all available information
on the most current proper and safe towing procedures. Suggested sources for towing information
include the United States Hang Gliding Association and the manufacturer of the towing winch / or
equipment being used. Wills Wing makes no warranty of the suitability of the glider for towing.