Her mother, Gisèle, was at the center of a trial that gripped France and made her a feminist icon. But it left Caroline Darian with her own pains and suspicions unanswered.

The devices will be used to airlift heavy, dangerous loads normally carried by mountain guides. They might even deliver a hot meal or two.

The effort is part of a dispute between Benjamin Netanyahu’s right-wing alliance and its opponents about the nature and future of the Israeli state.