What is the Useful Life of a Rotax 912 ULS?
Articles:
Rotax-Owner forum – “Going past 2000 hour TBO—what to look for.” Active thread specifically about extending beyond 2,000 hrs. rotax-owner.com
Rotax-Owner forum – “On-condition inspection instead of rebuild TBO?” Multiple posters note many 912s that, if well-maintained, don’t actually need overhaul at 2,000 h; engines have reached ~4,000 h in experimentals. rotax-owner.com
Rotax-Owner forum – “912ULS 2000 hr TBO.” Users report personal acquaintances with >3,000 h on 912s. rotax-owner.com
CTFlier (Flight Design community) – “On-Condition Rotax Maintenance.” Notes a “growing population” of Rotax engines approaching or going past 2,000 hours. CT Flier Forum
Recreational Flying forum (AU) – TBO and on-condition discussions. Multiple threads cover flying beyond calendar/hour TBO under private/experimental rules, buyers considering engines at or past 2,000 h. Recreational Flying+1rotax-owner.com
VansAirForce (RV community) – historical threads. Posts reference European 912s with 4,000+ hours still flying; U.S. examples at 2,500 h “still going strong.” Van's Air Force