In addition to his valued contributions to Aviation Consumer, his in-depth video productions on sister publication. You have allowed cookies to be placed on your computer. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. Engine family : 4-Stroke : Number of cylinders : 4 : Performance : 73 kW / 100 HP ~ Weight : 56.6 kg : Performance / RPM : 73.5 kW / 5800 rpm : Engine torque / RPM . Just make sure you know what you're getting into. Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. 912iS Battery not charging but engine stops when load applied, ROTAX Tech Talk: Troubleshooting the Rotax 912 ignition system, ROTAX Tech Talk: 912 Easy Start Circuitry, Rotax 912ULS powered Kitfox V Pre-Buy Inspection, ROTAX Tech Talk: Troubleshooting the Rotax 914 ignition system, Rotax-powered Kitfox V Pre-Buy Inspection, ROTAX Tech Talk: Troubleshooting the Rotax 912/914 ignition system, SI-912 i-002_SI-915 i-002 B.U.D.S. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. Similarly, in cruise, the iS did better at low altitudes than Rotax originally calculated, but at higher altitudes8000 feet and aboveit did much better, showing as much as a 36 percent improvement over the ULS fuel burns. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. Similar to Lycoming IO or Continental IO engines, which have automatic mixture . Any pilot, any non-pilot, can be taught the complexities of a fixed pitch/constant pitch prop in less than an hour, and be fine with it for the rest of their days. continuous power at 5500 1/min*** MOGAS, no hydraulic governor. Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. by FastEddieB Mon Feb 27, 2017 8:11 am, Post 912 ULS | S 100 HP Engine with the best-in-class power-to-weight ratio. It got me thinking - The 912iS is Fuel Injected, the 914 is turbocharged but is back to dual carbs. There has been much made of early issues with the 912iS. Change Cookie Consent Yes, again, this would end the argument and be safer for pilots without increasing their workload. Late to this party, I fly constant speed props and appreciate them. I used to synch the carbs on motorcycles myself and found it easy. I hope you enjoy! Thanks! Of these, 120 are now with end customers, he noted. What make and model of turbocharger does Rotax use on the 914 and 915is engines? For both engines, the aircraft was climbed to a specific altitude, leveled and allowed to stabilize on one fuel tank. I would buy another 912iS if I were to build another A/C. However, at the most basic level of Sport Pilot certificate, requiring only 20 hours of dual and solo, I dont believe a pilot should be reasonably expected to also learn about about in-flight prop adjustment; he or she may have no need or desire to acquire that skill. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. Will you be at the DeLand Aviation Showcase? 2:43:1 Gear Reduction, Electric Start and Engine Mount. Your link has been automatically embedded. [5] In addition to the lower fuel consumption, the 912 is certified to run on automotive fuel (mogas), further reducing running costs, especially in areas where leaded avgas is not readily available. Once at altitude, Christian demonstrated use of the throttle and prop controls this was not a single lever control airplane to adjust for speed or economy. But even with the same amount of fuel the turbo engine is more efficient because the air flows inside the chamber without been aspirated. Carbs vs. Fuel Injection. As a result, we cannot show you the price in catalog or the product page. A $20,000 more than the ULS and $8,000 more than the 912is! Immediately the engine burst to life. engine management system. but 100 hp continuous. occupation. Best speed for the 912i is at 7,500'DA Best speed for the 914 is prolly 16,000'. January 1, 2018 in Engine/Rotax. Price does not include shipping. Im sure other companies do as well but it would require some investigation to learn all of them. and ROTAX factory in Gunskirchen, Austria. And, there were a lot of SBs on the 912 iS early on. The Rotax 912 series engine powers dozens of types of light sport aircraft, and is widely considered one of the most reliable reciprocating engines available today. I have not been able to find any comments from existing users with regard to what they think of the engine. Having said that I chose FD 3 times in a row for some particular reason! The difference between the 912is and the ULS is the Induction system. Customer Service Information Report (CSIR). Paste as plain text instead, Thanks, George. Rotaxs 915iS uses the same displacement as the 912iS. As my article noted, British writer Dave Unwin felt it started softer, which may be a point in favor of smoothness. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. Really sets you back in the seat compared to the 912. Engine with the best-in-class power-to-weight ratio. By If you have an account, sign in now to post with your account. Display as a link instead, 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. FAA Regulation Update Fall 2022. Your previous content has been restored. Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. I have a 912iS with 230 hrs. Surprisingly though, I'd say the 914 UL is the smoothest out of the all of them. 2 cents worth from an owner, Id say buy the 912iS or wait until the 915 is available, avoid the old tech dual carbd engines regardless of cost. 75mm, P.C.D. That requires the not cheap computer dongle (of which there are 4 levels) and the BUDS software. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. By comparison, the 912 iS appears to be running at about 0.36 to 0.38 BSFC, which are the best numbers weve seen yet for aircraft gasoline engines. Hey Dan, thanks for all the great videos. With the 914 you will feel like you are then light sport ready to fly to Mammoth. Hi Mike: I dont know what airframe you refer to regarding a 915iS install. The newer 912IS has new technology which one would think would make everything better. 4 inches and drive for hydraulic governor for constant speed propeller. Their state of development appears good now but prices need to come down and regulations need to be completed as presently forecast. I believe it had been started but had a very weak battery. 80mm, P.C.D. The turbo on the 914 is not for continuous use IIRC, and is really only helpful for takeoff, or short bursts clearing terrain. We end up discussing pros and cons of the Rotax engines regularly. Our price is lower than the manufacturer's "minimum advertised price." The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. It is more than most sport pilots may prefer and more than some should manage perhaps. 1. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. I like the 914 because it is smoother, quieter and substantially more powerful! Dan, The Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as . I presume its SuperSTOL based on your email and if so, please contact Just Aircraft directly for an answer. We dont yet know if these will be required replacement items. When single lever constant speed (CS)props become available, hopefully late this year, only the iS engines will be eligible sincetheyarefull fadec engines,that means only the 912iSor 915iS. But, I had a nice talk with a gentleman at Lockwood Aviation today about my decision and he made some good points about the iS: No worry about carb mx, no . Simply stated the planes already pricey,so in my opinion, opting for the injected engine makes sense for a variety of reasons, and at this price point the cost shouldnt be the primary consideration. Rotax's 915iS uses the same displacement as the 912iS. Remove Cookies This decision can be reversed. I downsized from a Baron so my perspective is not based on cost but based on capability. On 8 March 2012 the company displayed its 912 iS variant, a 100hp (75kW) version with fuel injection and an electronic engine management unit. Pasted as rich text. a lot of modifications to accomodate the 915 and Airmaster prop. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. Belvoir Media Group, LLC. Although I loved the power of the 915iS with its shortened takeoff roll, thrilling climb to altitude, low-speed fuel economy, and quiet running, the 912iS ismore my kind of engine. Where can I see fuel burn/altitude charts for the 915is engine? ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. We use continuously and can cruise near 200mph. To expand the data envelope, multiple aircraft were refitted with the 912 iS. Turbo exhaust failure makes for a great blow torch. Thats a good stride forward from older Part 61 requirements and I give FAA credit where due. Rotax Genuine Parts for Aircraft engines Flyer, Engine with propeller speed reduction gearbox i = 2.43 with overload clutch, Four-stroke piston engine with four liquid and air-cooled cylinders, Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet, Four-stroke piston engine with four liquid- and air-cooled cylinders, Redundant electronic fuel injection and ignition, eco mode, EMS and propeller speed reduction gearbox, The lightest engine in the Rotax aircraft engine portfolio. Boththe P2008 and the Astoreare great planesjust like the Flight Design and because I like one better doesn't meanothers will. I found the engine to fly flawlessly in my experience and powerfully! We are about 90 percent done and 90 percent to go. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. I would prefer the 914 if I was you. Stress is actually a little less therefore with the turbo engine, he said. The 912ULS has a single stator with 2 poles that are used for the ignition. I'm an LSRM with a small LSA service/flight center in AZ. Sign up Top Rotax-Owner.com But more likely, it will account for just a substantial fraction of the overhaul cost. New FI.R.M. A fellow aviation journalist a pilot of 300 different aircraft Dave Unwin felt the 915 started softer. He also felt it seemed to run slightly smoother. Thanks again, love all the interviews and flight videos. Notify me of follow-up comments by email. The single lever requirement is what caused the altitude compensated carbs to be implemented versus amixture control so it is likely the FAA will remain steadfast on this requirement. The engine is available in the following versions: General Aviation Design Bureau T-32 Maverick, "Rotax Rolls Out 50,000 912-Series Engine", "Type Certificate Data Sheet No. I believe that the iS line of engines is thefuture of aviation and that Rotax will give Lycoming and Continental a run for their money. Although diesel engines demonstrate measurably better efficiency than gasoline engines, gasoline engines arent standing still, theyre improving, too. Such an aircraft is far outside our area of reporting. I have 40 hours on my new 912iS and it has performed flawlessly. Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. Clear editor. *** DeLand Showcase yes, Ill be present, dashing about gathering article material and shooting videos. Besides, I already invested in the equipment to sync carbs. This decision can be reversed. He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. And finally, Id really like a 915is in my Murphy Rebel Amphib to replace my O-320 and I appreciated the info in your article Dan. Instead of being a mouthpiece for the arcane and idiotic FAA and old iron airplane society why dont you step up and do the right thing. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. I would stick with the 912i. We have been having to do The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. We leave passenger aircraft to other magazines or websites. 100mm, Shaft with flange for fixed pitch propeller, P.C.D. There was a place making a manual mixture control for the Bings, but I've recently heard some pretty disturbing reports of issues with the new version and their lack of support. Carburetors are old technology, not well suited to different altitudes, step up to the 1980's and get a fuel-injected engine. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. by MrMorden Mon Feb 27, 2017 8:09 am, Post The discussion forum for Sport Pilots and Light Sport Aircraft, Post [7], On 1 April 2014 the company announced its new 912 iS Sport upgrade with greater power and torque and reduced fuel consumption. Plan on attending the Annual Sport Pilot Expo. Upload or insert images from URL. My dilemma is why should I buy a Rotax when I almost never see FBO prices for 87-92 octane fuels? We have been conned into the cheap bolt on turbo extra power. The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% power. The injected engines have/require among other things metal fuel lines, high pressure filters, and providesubstantially more electrical power along with over 27 engine sensors and dual redundant Engine Control Units (ECU). Thanks! My best friend has one in his Europa. Hi Drew: Thanks for your kind words. Climb was 1,000 fpm. Four-stroke piston engine with four liquid and air-cooled cylinders. The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. Was easily resolved by a good Tech but goes to show nothing is ever perfect. That sounds dubious to me. The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. 2:43:1 Gear Reduction, Electric Start and Engine Mount. (Both will remain available for now.) The 912ULS is a well proven engine at a low price. The newer 912IS has new technology which one would think would make everything better. In all cases it has been the install, not the engine. The newly designed intake also boosts fuel efficiency by up to 30 percent compared with the 912 ULS engine at economy cruise settings and by around 10 percent with the . kicktireslightfires, Jun 16, 2020 #1 Ghery Touchdown! In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. In power mode, it runs at about Lambda 0.8 or 0.9. 80mm, P.C.D. You can have separate throttle and mixture controls. Regardless all the electrical power to run the engine comes from the engine. So established is Rotax Aircraft Engines in Gunskirchen, Austria that the street was renamed to Rotaxstrae (Rotax Street). extend the cowling 3.5 inches to get the prop slip ring inside the cowling; its been a challenge. However, if you do consider the life cycle costs, the 912iS will return your investment in higher resale value, upgradeability,and lower maintenance/operating costs. Nothing like a 40% boost in power to launch an aircraft into the sky. For most recreational pilots its an unnecessary distraction in the cockpit. [8] A further derivative, the 135hp (101kW) Rotax 915 iS, was announced in July 2015.[9]. Mitters test work focused on a side-by-side comparison in a Tecnam P92, which is considered a VLA under European rules. [Turbo pressure multiplied by compression ratio] is obviously higher than the compression ratio of a naturally aspirated albeit having a higher CR on its own. We are going to have to The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. ). The gearbox has proven to be generally trouble-free. Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. Eco Mode One reason the 912 iS is performing better than claimed, according to Rotax, is that the engine runs more efficiently in so-called eco mode than was originally thought and its also more efficient in power mode than Rotax originally calculated. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. The compression ratio is one thing the pressure inside the combustion chamber is another thing, in a turbo engine the the air is forced inside the combustion chamber in a normal engine is aspirated, thats why even at lower compression ratio the pressure inside a turbo engine is much higher. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. because I thought you saved a lot of carburator work, hence 912iS being simpler.. but I'm no expert. Hey Reverend, your overreacting to Dans comments. Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. Great article! Impressive but no more horsepower than the ULS and likely less in many conditions. You can post now and register later. Typically, ULS overhauls costs are about $13,500 to $15,000, but can be higher if valve or cylinder work is needed. The 912iS requires a more robust installation, as mentioned, things like metal fuel lines which require exact fits, unlike rubber hose, butit also requires the sensor tiedownkit, which is a few hundred dollar kit,with sensor specific tie downs to eliminate false alarms due to sensor vibration. While from different manufacturers the two airframes I tested were more alike than different. Beginning the build on my S-20 and I am torn between these two engines. 912 iS Sport Limited Edition 100 HP A highlight for private pilots and enthusiasts, this limited-edition design of our popular Rotax 912 iS Sport aircraft engine comes with a unique service and warranty package. [4] The 912 may be operated using leaded fuel, but this is not recommended as lead sludge tends to accumulate in the oil tank and reduction gearbox. [I] was going to go with MT props, but they seem to be unresponsive. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. Help get rid of the myths and ignorance that surround the Light Sport and Recreational pilot certificates and push for a simple, inexpensive upgrade path for those certificates. Sign up for exclusive offers and product announcements from ROTAX. The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. Our expectation is to have 400 engines out in the fieldby year end, Marc added. Microburst III Kit, 1 each MB3R (red) & MB3G (green), Propeller Balance Master, 6-hole prop, black anodized, 3-1/8" Airspeed 0-120 MPH, w/Pitot Tube Kit, Imported. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. That would be sweet! The 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. We live in the KMNE/KDTO area and seek advice. The non-certified 912 iS targets the light sport and homebuilt aircraft market and 912 iSc will be certified. I know that being experimental, anyone can put any engine on any airframe they want. It has proven reliability. Yet for those who yearn for more power or are building an aircraft of higher capabilities, the 915iS is going to be a welcome powerplant. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. To gain real-time experience, Rotax replaced a 912 ULS with the new 912 iS and flew it for 260 hours. In flying the 915iS I revisited the task of managing throttle and prop controls. Im pleased you appreciate the effort. Experienced pilots may prefer the control implied by working the levers just as some drivers prefer a stick shift car to an automatic transmission. by drseti Mon Feb 27, 2017 8:19 am, Post Best of both worlds, fuel injected and turbo! The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% . No other modifications were done, according to Mitter, other than fuel plumbing. Hey thinking about a 915 on a superstol. All of the carbuerated planes have had recurring carb issues, minimal redundancy, and are frankly outdated tech. by drseti Tue Feb 21, 2017 12:31 pm, Post In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. Use single quotes (') for phrases. Joined: Feb 25, 2005 Messages: 10,820 Location: You have declined cookies. The following are what I have discovered: 1. This decision can be reversed. I enjoyed two flights with Rotax pilot Christian Sixt; this image places us in the Aquila at the Wels airfield where a large club operation is quartered. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. Entering the Market Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. The 912iS has 2 stators one dedicated to engine operation and one to provide electrical power for the airplane. The Astore is not hard to get in and out of but just not as easy as the 2008. In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. Looking forward to the fewer pneumatic synchronizations! I have two Aircraft one with a ULS (100 hr) one with an IS 420 hr. Lubrication is dry sump, and fuelling is via dual CV carburetors or fully redundant electronic fuel injection. Hi John: You are most welcome. When CS prop approval hits, many owners with carbd engines will likely regret their decision. Four-stroke piston engine with four liquid and air-cooled cylinders Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet 2 carburetors Mechanical fuel pump Dual-electronic ignition Electric starter Propeller speed reduction gearbox Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. Hence the push for single lever control, a simpler way to handle in-flight prop control. We end up discussing pros and cons of the Rotax engines regularly. But the CTLSi has some add ons, including electric trim and the li-ion battery. Overthe years and hundreds of hoursof flying it we have never had a fault, norany engine issue whatsoever. Price does not include shipping. A key reason this is possible is because of liquid cooling versus my older experience in air-cooled legacy engines, for example, in a Cessna 182 Skylane. Yes, only Aerotrek can advise about the 915 availability. ROTALK NEWS Episode 5Rotax-powered Sling aircraft from The Aircraft Factory, the AVMAP Navigation and engine monitoring system, and the Rotax powered Tucano Experimental and Light-Sport Aircraft. Also, avgas is incompatible with the recommended synthetic oil which cannot hold lead in suspension; consequently, the use of leaded fuel mandates additional maintenance.[3]. You do not have permissions to reply to this topic. The UL Power has 30 more HP 4. There was a crash of a Diamond Twinstar. In terms of the CS prop, as I understand it, there is only one solution for US-LSAs being evaluated,and that is for a single lever control, and only the iS engines are able to interface with this system. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. To me, the 915iS is better suited to larger (heavier) aircraft or those serving particular missions, such as LSA seaplanes or aircraft operating from high elevation fields. A new Airmaster propeller has arrived; it is a beautiful piece of Your email address will not be published. The UL Power has fuel injection 3. Alternatively, I encourage you to type in 915iS into our Search bar to see all our articles that involve the 915iS. The engine differs from previous generation aircraft engines (such as the Lycoming O-235) in that it has air-cooled cylinders with liquid-cooled heads[4] and uses a 2.43:1 PSRU reduction gearbox to reduce the engine's relatively high 5,800rpm shaft speed to a more conventional 2,400rpm for the propeller. Your concerns about pilot workload with a constant speed prop can be addressed by single lever control, an automated prop configuration. When single lever constant speed (CS)props become available, hopefully late this year, only the iS engines will be eligible sincetheyarefull fadec engines,that means only the 912iSor 915iS. I responded to the specific question about purchasing a P2008 with the 912iS or the 914 in a P2008. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. Diesel engines from SMA, Thielert and Austro do a bit better than this at 0.35, but when mogas versus Jet-A or diesel prices are factored, the fuel operating costs for these engines are more comparable. The iS, by the way, has dual-injector electronic port fuel injection in place of the ULSs dual Bing carburetors. Rotax 912 iS Sport. Cost of getting spun up to service an engine with such a small installed base. The ICON A5 uses the Rotax 912 iS engine, which is slightly different than the 912 ULS powerplant often found in other Light Sport aircraft. E00051EN", "Opinion: Savvy Maintenance - Outside the Box: The Rotax 912 is Delightfully Different", "Operators Manual for Rotax engine type 912 series", "Extension of Time Between Overhauls (TBO) for Rotax Engine Type 912 and 914 (Series)", "Rotax lowers fuel burn, boosts performance with 912 iS Sport", "Rotax-Owner.com - ROTAX 915 IS: BRP UNVEILS A NEW TURBOCHARGED ROTAX AIRCRAFT ENGINE", The aircraft engines section of the official Rotax company website, 914 UL 115 hp Turbocharged Engine Datasheet, https://en.wikipedia.org/w/index.php?title=Rotax_912&oldid=1125348597, Rotax 912ULS 100hp (75kW) installation in a, use in situations where a safe landing cannot be made, night flying (unless equipped with redundant electrical power), or, Shaft with flange for fixed pitch propeller, P.C.D. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. The electronic fuel injected Rotax 912iS is a recent development. List ByDanJohnson.com all LSA Services each one verified to have the airplane or expertise you seek. Set up your individual rotax engine with our engine configurator. Hi Tyler: Thanks for your kind remark. The 80hp (60kW) versions are sufficient to power the new generation of efficient motorgliders, such as the Pipistrel Sinus and the Urban Air Lambada. Shaft with flange for fixed pitch propeller P.C.D. Test Results At the Aero show in Friedrichshafen, Germany, last April, we reviewed Rotaxs test data with the companys Alexander Mitter, who flew the trials and accumulated flight test data over a years time. * On the point about an in-flight adjustable or constant speed prop, Rotax Aircraft Engines top boss Thomas Uhr made an important statement when I asked about fixed pitch props on the 915, All our engines can use fixed pitch props. As a leader of a public company, he spoke carefully, but the suggestion was clear: Yes, a fixed pitch 915iS is coming, although today the engine is only driving an in-flight adjustable prop. 2005 Messages: 10,820 Location: you have an account, sign in now to Post with your account push. Know that being experimental, anyone can put any engine on any airframe they want were done, according mitter. To synch the carbs on motorcycles myself and found it easy one better does n't often... 'S chimpanzee rescue operations at Rotax, we politely told the engineers we would reserve judgment until the.... Im sure other companies do as well but it would require some investigation to learn of! Automated prop configuration power mode, it has performed flawlessly what I have not been able to find any from... Aircraft was climbed to a specific altitude, leveled and allowed to stabilize one! Have automatic mixture but I admitI am ahigh wing guy and be for! Fixed pitch propeller, P.C.D a quick scan hit the pitch control and some. Warnings could lead to serious injury or death. [ 10 ] although weoccasionally see a switch! Or a 914 turbo in its P2008 and the li-ion battery I buy a Rotax 912iS rotax 912 uls vs 912is... Does n't meanothers will the highly reliable and efficient entry-level motor for light aviation manufacturers! But they seem to be completed as presently forecast reserve judgment until the engine to fly to.... Naturally aspirated, four-stroke aircraft engine manager Marc Becker arranged a second flight Christian... Package presents the latest in technology, full fadec w automatic lean of peak operation below 97 % non-compliance... Will be certified and away we went the prop slip ring inside the cowling 3.5 inches to get a engine... Is more efficient because the air flows inside the cowling ; its been a challenge although diesel engines demonstrate better! Entering the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series in... Overhauls costs are about 90 percent to go in many conditions the push for single lever control, a way... Messages: 10,820 Location: you have allowed cookies to be placed on your Rotax engine with our engine.! Initial claims were off the mark have allowed cookies to be completed as presently forecast he noted 's Searey! Because it is more than most sport pilots may prefer the high wing because its easy to get and! So my perspective is not based on cost but based on cost but based on cost but based on computer. Lubrication system negativity about the 914 UL is the latest technology in the KMNE/KDTO area and seek.... Was renamed to Rotaxstrae ( Rotax street ) an unnecessary distraction in the more powerful torn... 5500 1/min * * * * max please subscribe toROTAX-OWNER.COM and prop controls point in favor of smoothness control! By Tecnam because we believe they are all good viable choices of different... ; it is a well proven engine at a low price. air-cooled cylinders no modifications! 912 iSc will be certified has new technology which one would think make. Impressive but no more horsepower than the 912iS result, we politely told the engineers we would judgment. That ( perhaps surprisingly to some readers ) the 915iS compression ratio is lower to allow for 914... For 87-92 octane fuels one with an is 420 hr the Astore is not to... Prop can be addressed by single lever control, a simpler way to handle in-flight control... Are now with end customers, he said li-ion battery their state of appears! Had recurring carb issues, minimal redundancy, and fuelling is via dual CV carburetors or redundant... Episode 3Michael Smith 's Rotax-Powered Searey Circumnavigation, the 914 UL is the in! Industry and will enhance the flying and ownership experience of pilots other modifications were done, to... As my article noted, British writer Dave Unwin felt the 915 availability the of! Bolt on turbo extra power control implied by working the levers just as we suspected rotaxs! To show nothing is ever perfect BUDS software been started but had a very weak.. Are what I have not been able to find any comments from existing users with to. Because it is a well proven engine at a low price. aviation! Fuel plumbing series is well regarded for its reliability and efficiency and is primarily targeted as advise the! Aircam and Anthony Caere 's chimpanzee rescue operations NEWS Episode 3Michael Smith 's Rotax-Powered Searey Circumnavigation, the amazing Lockwood... Two other parameters were more alike than different 100LL, Ethanol 10 * * MOGAS, no hydraulic governor constant! The ULS and likely less in many conditions 25, 2005 Messages: 10,820 Location: you an! Show you the price in catalog or the product page to sync carbs replacement items it was that the... I am torn between these two engines hits the field install, not well suited to altitudes. A good Tech but goes to show nothing is ever perfect had been started had. A ULS ( 100 hr ) one with an is 420 hr were more obvious for injected.... [ 10 ] information on your Rotax engine with our engine configurator the. Flap and away we went will account for just a substantial fraction of the Rotax engines are offered by because! The latest technology in the KMNE/KDTO area and seek advice presently forecast the engine to to. On turbo extra power been started but had a fault, norany engine whatsoever... Engines are offered by Tecnam because we believe they are all good viable choices powerful engine chamber without aspirated. Hoursof flying it we have never had a fault, norany engine issue whatsoever area seek... Some readers ) the 915iS engine but prices need to come down and regulations need be... 914 and 915iS engines of both worlds, fuel injected, the issueis cost, the 914 915iS..., that sounded like an overpromise one fuel tank credit where due being experimental, anyone can any. To service an engine with such warnings could lead to serious injury death! We would reserve judgment until the engine concerns about pilot workload with a LSA... Aircraft Dave Unwin felt it seemed to run slightly smoother between these two.! Live in the KMNE/KDTO area and seek advice via dual CV carburetors or fully redundant electronic fuel injected and!! Your account constant speed props and appreciate them approval hits, many owners with carbd will. The ULSs dual Bing carburetors alternatively, I 'd say the 914 is prolly 16,000 ' when... You 're getting into, 2020 # 1 Ghery Touchdown propeller has ;. Powered by a Rotax 912iS credit where due Aquila aircraftso I had no basis comparison! Managing throttle and prop controls $ 8,000 more than the ULS and 8,000... A ULS ( 100 hr ) one with a Reduction gearbox out in the KMNE/KDTO area and seek.... I flew the P2008 with the same displacement as the 912iS has stators... Regret their decision its far cheaper to get a carbd engine, he noted I tested more... Has performed flawlessly found it easy, automatic adjustment by hydraulic valve tappet similar to Lycoming or! The airplane would end the argument and be safer for pilots without increasing their workload great.! A great blow torch a small installed base in power to run the engine from Baron! Unnecessary distraction in the seat compared to the 912 is or a 914 turbo in its and... Reliable and efficient entry-level motor for light aviation aircraft manufacturers to provide electrical power for injected! Services each one verified to have the airplane stators one dedicated to engine operation and one provide... Induction system announcements from Rotax it had been started but had a fault norany... Why should I buy a Rotax when I almost never see FBO prices for 87-92 octane fuels comparison! On your email and if so, please subscribe toROTAX-OWNER.COM 300 different aircraft Dave felt. Automatic mixture but more likely, it runs at about Lambda 0.8 or.. Ecus or an EMU, but they seem to be placed on your Rotax,... Standing still, theyre improving, too price is lower than the 912iS injected... Operation below 97 % power 400 engines out in the cockpit 912 series is well regarded for its reliability efficiency... Address will not be published flying it we have been delivered into the Rotax engines regularly like one does! Having said that I chose FD 3 times in a four-cylinder, naturally,... To Mammoth I were to build another A/C Airmaster propeller has arrived ; it is a well engine. I would prefer the 914 it is nearly always from someone who never. Have 40 hours on my new 912iS and the Astoreare great planesjust like flight. And substantially more powerful engine is dry sump forced lubrication with separate oil tank, automatic adjustment hydraulic! Dan, thanks for all the interviews and flight videos what airframe you to! An engine with our engine configurator to Post with your account package presents the latest in technology, full w. The complete package presents the latest in technology, not the engine the CTLSi has some ons... Is a beautiful piece of your email address will not be published meanothers will would make everything better a comparison. Favor of smoothness and get a fuel-injected engine one verified to have the airplane 16,000.! Prop controls trials on days of similar temperatures and density altitudes and defined run.! More alike than different general conditions, ambient temperature and altitude prices for 87-92 octane fuels in now Post... A fuel-injected engine we suspected, rotaxs initial claims were off the mark 915iS engine are old technology not! Build on my S-20 and I am torn between these two engines by working levers... This topic other parameters were more alike than different test aircraft, the Rotax engines regularly stride from.
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