On Tuesday, February 2, 2016 at 11:58:17 AM UTC+3, wrote:
Le vendredi 15 janvier 2016 22:07:57 UTC+1, Jonathan St. Cloud a écrit :
The rigging is very important on a Nimbus and when I first got mine is was rigged horribly and flew horribly. Fixed the rigging and it was a beauty to fly.


Hi Jonathan,
Very interesting. I have a N4DM since 17 years and 2.500 hours and see no possibility at all to change any setting during rigging. I can't understand how I may "rig horribly"... Thanks for explaining to me and others.
Instead, I can change the setting of the flap angle and the force of airbrake locking by changing the extension of the controls between the fuselage and the inner wing, but this is something that takes time and attention, not simply a rigging. BTW, I actually change the airbrake locking force twice a year, for cold flights in Patagonia and warm ones in Europe. See my book "Dancing with the Wind" page 194 and following (on sale at Cumulus Soaring).

"Rigging" is a set of devices for adjusting positions, angles, tensions etc of aerodynamic surfaces -- or as a verb the use of such adjustments. Originally from sailing ships but later applied to aircraft (which were initially made in very similar ways. The "rigging angle", for example, refers to the angle between the chord of the wing and the fuselage.

What we refer to as "rigging" of gliders is merely the use of precision quick-release mechanisms that are expressly designed to not alter the settings!