Issue Date: 29 Jan 2009 Rev 1
Page 20
PITCH STABILITY SYSTEM
Stability in the pitch axis is provided by reflex in the root section. Alterations to the lengths of rigging,
airframe or adjustments to the airfoil can have adverse effects on pitch stability.
Reflex bridles provide pitch stability at low angles of attack. Correct attachment and adjustment of
the reflex bridles is essential for maximum stability.
A string line can be used to check the reflex bridles are correct. The line should be firmly stretched
between the reflex bridle attachment eyelet on corresponding battens on the right and left side of the
glider. Check the measurement from the string line to the top of the keel with the VG pulled all the
way on.
The glider should be standing on the control frame. It is important to support the keel
off the ground from the rear flying wire attachment point otherwise the keel will flex and the
measurements will be incorrect.
String tension and measurement technique will cause variations of +/- 10 mm. This tolerance should
be considered when checking against the following chart.
Summary of Contents for Sting 3
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Page 34: ...Issue Date 29 Jan 2009 Rev 1 Page 34 STING X BAR LEADING EDGE JUNCTION A4 4716...
Page 37: ...Issue Date 29 Jan 2009 Rev 1 Page 37 REAR LEADING EDGE ASSEMBLY STING A4 6859...
Page 38: ...Issue Date 29 Jan 2009 Rev 1 Page 38 STING III 154 NOSE JUNCTION ASSEMBLY A4 4717...
Page 40: ...Issue Date 29 Jan 2009 Rev 1 Page 40 STING III 168 NOSE JUNCTION ASSEMBLY A4 7743...
Page 42: ...Issue Date 29 Jan 2009 Rev 1 Page 42 STING III KEEL ASSEMBLY A4 7608...
Page 45: ...Issue Date 29 Jan 2009 Rev 1 Page 45 CONTROL FRAME STING III 154 PREASM A4 7625...
Page 47: ...Issue Date 29 Jan 2009 Rev 1 Page 47 CONTROL FRAME STING III 168 PREASM A4 7747...
Page 49: ...Issue Date 29 Jan 2009 Rev 1 Page 49 STING HANG LOOP ASSEMBLY A4 4796...
Page 50: ...Issue Date 29 Jan 2009 Rev 1 Page 50 STING III SAIL TO AIRFRAME ASSEMBLY A4 7748...
Page 53: ...Issue Date 29 Jan 2009 Rev 1 Page 53 STING III INTERCHANGE TABLE A4 7749...
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