Le lundi 18 mai 2015 21:24:58 UTC+2, Jonathan St. Cloud a écrit*:
Does anyone know, are there factory approved winglets for Nimbus 4d's? If so would appreciate comments from those that have flown with the winglets and if they were worth the price to purchase and install? What changes in glider performance and handling were noticed after the installation of the winglets?

Thanks

There is no such thing as factory approved winglets for a N4D.

Bert
TW