Rotax 912 uls 100 HP TBO

[Monocock]

I know of 9 x 912ULS engines that are used daily (and have been for 4 years) that have hit 2500 hours. None have had any more than routine maintenance.

There are loads of people who seem to like slating the "S". It's a great engine and I would buy another. Power to weight, it's stonking!!