Rotax 912, le ralenti

Lire en anglais sur http://www.rotax-owner.com/en/component/k2/item/44-912-idle-rpm

extrait

What is the perfect idle rpm for a 912 series engine? Well that’s up to you, but most will be in the 1600-1800 rpm range, depending on which 912 engine and aircraft they have. Does having an idle rpm set at 1650 rpm versus 1750 rpm make a difference in landing? Not if you realize it’s the stick that controls the aircraft speed (and prop loading) and not a 100 rpm difference in idle rpm. Lower idle rpm does help for taxi on the ground and if you decide to have a low idle rpm for landing just keep in mind you do have the throttle and shouldn’t just let it idle at low rpms when just sitting on the ground.