Engine type serial number 912 a from sn 4410959 912 f from sn 4409 912 s from sn 4924446 912 ul from sn 6770766 912 uls from sn 6780435 914 f from sn 4421150 914 ul from sn 7682317. Whats the ul bit all about and whats the difference between the 912ul and the 912uls are they both 80hp engines. Tim brooks, director of maintenance for heart of virginia aviation, takes you on a. Maintenance manual line 912 edition2 us sport aircraft. We use cookies to understand how you use our site and to improve your experience. Foreword before carrying out repair work on the engine, read the repair manual carefully. Line maintenance for rotax engine type 912 series part no 899373.
Rotax aircraft engine milestones 4 rotax 912 is fh joanneum, thomas goigitzer ultralight engines 501, 505 developed based on snowmobile engine 503 1975 1978 certification of the first rotax aircraft engine 1984 start of development of rotax 912 sop rotax 912a 80hp 1989 1996 sop rotax 914f 115 hp sop rotax 912s 100 hp 1998 2006. Rotax 912 is sport 100 hp engine from california power systems. Oct 22, 2017 rotax 912 ignition wiring diagram raw rotax 912 ignition wiring diagram raw rotax 912 wiring diagram rotax 912 ignition wiring diagram raw rotax 912 ignition wiring. Search for technical documentation of rotax aircraft engines. Tim brooks, director of maintenance for heart of virginia aviation, takes you on a justthefacts tour explaining what you. Bert flood imports rotax 912 uls australian aircraft engine.
The new 912 ul s is a 100 hp version of the certified 81 hp 912 engine, with the same external dimensions as the standard rotax 912. It is, by the way, the only aeroshell product that is suitable for these engines. Installation manual 912 series german light aircraft. Zenith aircraft company recommends the rotax 912 series engines as the standard powerplant for both the zodiac ch 601 series and the stol ch 701. The rotax 912 series includes all engines such as the. This chapter of the operators manual contains general and safety.
Rotax 912, rotax 912 manuals, rotax 912 installation manual. Here you can view the cookie settings of various tools used on this domain and its subdomains. The rotax 912 is a naturally aspirated, airand watercooled, horizontally opposed fourcylinder, fourstroke, gear reductiondrive engine commonly used on certified aircraft, light sport aircraft, ultralight aircraft and unmanned aerial vehicles. The oil cooler and lines can hold as much as a quart of used oil. O of 2,000 hours when installed in a light sport aircraft and considerably more hours when installed in an experimental aircraft. The 912 914 series engines need to generate a minimum of 5,200 rpm at wide open throttle wot in the takeoff run. Database contains 4 rotax 912 uls 3 manuals available for free online viewing or downloading in pdf. Maintenance manual line maintenance for rotax engine type 912 series part no 899735. Please excuse my ignorance but ive only previously owned an aircraft with a 582. The rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as the entry level engine in the light aviation industry. Sport plus 4 was developed in an effort by both rotax and shell to produce an oil whose formulation was stable and well suited for the rotax 4stroke aircraft engines. Rotax 912 series includes 912 a, 912 f, 912 s, 912 ul, 912 uls and 912 ulsfr.
In this manual the installation of all rotax 912 series engines is described. The rotax 912 series includes all engines such as the 912 a, 912 f, 912 s, 912 ul and 912 uls. The rotax 912 uls, 100 hp, 4 cylinder liquid cooled aircraft engine is used in a variety of light sport. Chapter structure the repair manual is subdivided into the following chapters. This chapter of the maintenance manual contains general and safety information concerning the operation of the aircraft engine. In the first article august 2005, we discussed the primary differences between the rotax 912ul, 912uls, and 914ul engines and how to determine which is best for your application.
Rotax 912 uls 3 manuals and user guides, engine manuals all. The 912 series includes all engines such as the 912 a, 912 f, 912 s, 912 ul, 912 uls and 912 ulsfr. Rotax 912, rotax 912 manuals, rotax 912 installation manual, rotax 912 maintenance manual, rotax 912 parts list. View and download rotax 912 series maintenance manual online. View and download rotax 912ul repair manual online.
The method for preparing the model aircraft engine. Take off speed at wot wide open throttle should not be below 5200 rpm to avoid over loading the engine. Pdf simulation research of aircraft piston engine rotax 912. The manual must remain with the engineaircraft in case of sale. The rotax 912 series includes all engines such as the 912 a, 912 f, 912 s, 912 ul, 912 uls and 912 ulsfr. Rotax 912 series engines inspection and maintenance schedule spark plugs, when using 100ll avgasinspect at 50 hour intervals of operation. Jan, 2018 overhaul manual for rotax 912 pdf free access for overhaul manual for rotax 912 pdf from our huge library or simply read online from your computer instantly. I have an 2016 rv12 with the rotax 912uls, purchased used at 150 hours, and. Whats special about preflighting the rotax engines found on most lsas. Fig 1 performance and manifold data for rotax 912 ulss 08447 note. Lockwood aviation supply provides parts and service for all rotax powered aircraft.
Based on the proven concept of the rotax 912 s uls engine the new 912 is sport engine offers all well known advantages of the rotax 4stroke engine series complemented by additional features, for example, the engine management system. In comparison to the 80 hp version of the rotax 912 series the 100 hp product line offers more power while keeping the same weight. Rotax is a web based support system which allows our registered members a common access point for locating key information education support for their rotax aircraft engines. Cookies are used for user guidance and web analytics and help to make this website better and more userfriendly. The manifold pressure graph is not relevant for rotax engine type 912 a, 912 f, 912 ul, 914 ul and 914 f. Most of the things you wanted to know about servicing a rotax 912914 series aircraft engine but were afraid to ask. Operators manual 912 series california power systems. Most of the things you wanted to know about servicing a rotax. This paper reports the results of simulation works of rotax 912 aircraft piston engine, which is a basic unit in most ultralight aircrafts. Table of contents this chapter of the installation manual contains general and safety information concerning the operation and maintenance of the aircraft engine. If any passages of the manual are not clearly understood or in case of any questions, please, cont act an authorized distributor or service center for rotax aircraft engines. Free air cooled cylinders, liquid cooled cylinder heads with integrated pump and expansion tank. Rotax 912 ul service, rotax 912 uls, rotax 912 is, rotax 914.
With proper care and maintenance the rotax 912 uls has a t. By conrad beale the intention of this article is to assist the many rotax 4 stroke engine owners, operators and engineers to carry out the work necessary to prolong the life of their rotax 912 914 series aircraft engines. Rotax engine manual pdf downloads the following links are a series of. Rotax 912 uls dcdi 100hp rotax service your automotive. If any passages of the manual are not clearly understood or if you have questions, please contact an authorized distribution or service center for rotax kart engines. Introduction this section describes the installation of engine type rotax 912 series. Most of the things you wanted to know about servicing a rotax 912 914 series aircraft engine but were afraid to ask. Rotax aircraft engines technical documentation rotax. I thought 912 was 80hp and 912s was the 100hp variant. Service instruction oil pressure sensors for rotax engine. Rotax aircraft engine manuals all manual editions and revisions are current as of mar th, 2020. Rotax engine manual pdf downloads from california power systems.
Operators manual for rotax engine type 912 series rotax 912 uls 3 with options part no 899371. We wish you much pleasure and satisfaction flying your aircraft with this rotax engines. Before starting with the engine installation, read this installation manual carefully. See rotax service information 11 ul 91 for the details. In comparison to the 80 hp version of the rotax 912 series the 100 hp product line offers more power while keeping the weight. View and download rotax 912 ul operators manual online. The 80 hp version of the rotax 912 series offers a time between overhauls of 2. This section describes this maintenance of engine type rotax 912 series. We use cookies to personalize content and ads, to provide social media features and to analyze traffic to our site. Only applicable on pressure altitude below 3500 ft. I agree no thanks if you do not want a recording, you can disable it under legal notice. We carry over 8,000 unique parts and supplies for rotax engines and the aircraft they power.
Astm, the rotax 912 ululsulsfr is restricted to day vfr only. Installation manual, operators manual, maintenance manual. Oil pressure sensors for rotax engine type 912 and 914 series. Most of the things you wanted to know about servicing a rotax 912. Aug 06, 2011 the result can be hard starting and increased wear in the starting system, including damage to the sprag clutch. Get a fresh start by purging all dirty oil by force purging the entire system. Rotax engine manual pdf downloads the following links are a series of articles that appeared in ultralight flying. Periodic inspection of the float buoyancy of rotax engine type 912 and 914. Periodic inspection of the float buoyancy for rotax engine. Jan 21, 2010 whats special about preflighting the rotax engines found on most lsas. This section describes the maintenance of engine type 912 series.
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