Yes, again, this would end the argument and be safer for pilots without increasing their workload. 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. Gas vs. Diesel Rotaxs tests validate a trend thats been apparent in the automotive industry for two decades. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. Motor as the sport upgrade already done. To get below 3 gph, a surprisingly low consumption rate, speed dropped below100 knots true or 85 indicated. By using our website, you agree that we can place these types of cookies on your device. I have been thinking ULS for great history, lower cost, lower weight, etc. Customer Service Information Report (CSIR). The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. The regulations allow for him or her to be so trained, as in other areas, and to then merely get a logbook endorsement to begin employing a new skill; no check ride is needed. Paul Bertorelli is Aviation Consumers Editor at Large. In our family we have also had two 912ULS powered planes, and one 914. Id be a bit surprised if this conservative company embraced that. - All Rights Reserved. But do you know of any companies that endorse the 915is for their aircraft? All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. A back-of-the-envelope calculation reveals that these numbers rival diesel efficiency and if mogas is factored into the equation, flying a 912 iS-equipped aircraft is substantially less expensive than the equivalent 912 ULS. Reconsider Cookies 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. You can have separate throttle and mixture controls. Rotax 912 S/ULS. Stress is actually a little less therefore with the turbo engine, he said. Thanks, George. Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. The hardest part is having to get so close to a spinning prop. Use spaces to separate tags. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. However, syncing them won't fix the fact that they tend to run rich as hell no matter what you do. The extra cash is probably not a huge deal when you are already spending $17k on an engine or $100k+ on a new airplane, but on an LSA 22lb can be significant. Overall I would argue better minds than ours made a good call. Our expectation is to have 400 engines out in the fieldby year end, Marc added. It is true that the 115 hp is available for five mins. Carbs vs. Fuel Injection. By ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. An Astore with 912iS and a P2008 with the 914 :-). Having said that I chose FD 3 times in a row for some particular reason! Then the fuel source was switched to a second tank and the consumption precisely measured on the ground after exactly an hour of flight. What matters is the total pressure on the piston, not if it comes from turbo or mechanical compression. It has proven reliability. engine management system. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. I am getting ready to build a Sling 2, 51% EAB, with Midwest Sky Sports. This requires a novel preflight inspection procedure: before checking the oil level with the dipstick, the engine is "burped" by removing the oil filler cap and turning the propeller until a gurgling sound is heard, which indicates that all oil has been forced into the tank and the oil level can now be checked accurately. While not especially hard you can hardly get in trouble with such equipment on a modern, liquid-cooled Rotax you nonetheless have to fiddle with levers and knobs, and keep an eye on instruments. . On 8 March 2012 the company displayed its 912 iS variant, a 100hp (75kW) version with fuel injection and an electronic engine management unit. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. Im pleased you appreciate the effort. Hence the push for single lever control, a simpler way to handle in-flight prop control. January 1, 2018 in Engine/Rotax. 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. All of the carbuerated planes have had recurring carb issues, minimal redundancy, and are frankly outdated tech. Glad it was a VFR flight in good weather. Ill leave this forum to the CT crowd who know that very capable airframe. Prices shown are in USD. Yes, only Aerotrek can advise about the 915 availability. 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. 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. I used to synch the carbs on motorcycles myself and found it easy. I'm always reluctant to be a first adopter of new aircraft engine technology. Carbs are never "better" in terms of performance the only potential benefit of using carbs would be that , in some scenarios, they are simpler to troubleshoot and fix and don't need electricity to run. Most comparison was done in a Tecnam P92 Echo Classic. Plan on attending the Annual Sport Pilot Expo. 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 . 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. A new Airmaster propeller has arrived; it is a beautiful piece of Their state of development appears good now but prices need to come down and regulations need to be completed as presently forecast. By using our website, you agree that we can place these types of cookies on your device. Fuel needs of both 915iS and 912iS are essentially the same. Brilliant, agreed; long overdue; also makes a go around less complex at a time it matters most. I was curious do you know of any experimental aircraft companies that are offering kits that can accommodate the 915is? The 912is has a few minor Differences/Improvements but the rest of the engine is essentially the same. Based on the proven concept of the 100HP Rotax 912 S/ ULS engine the 912 iS SPORT engine offers all well known advantages of the Rotax 4-stroke engine series complemented by additional features, e.g. Christian jockeyed them around liberally without detriment. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. 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). The iS engine is very nice, but it's $3000 more than the ULS (current CPS pricing) and weights ~22lb more. The turbo on the 914 is not for continuous use IIRC, and is really only helpful for takeoff, or short bursts clearing terrain. I had some issues with gearbox, however all corrective work was in warranty. Now a few years after the 912iS was released, it has become a well refined engine, IF it is installed according to Rotaxs manual and instructions. The discussion forum for Sport Pilots and Light Sport Aircraft, Post The 912's popularity was greatly enhanced by the introduction of the light-sport aircraft category in Europe and the United States, which resulted in the introduction of many factory-built aircraft designed to fully exploit the engine's small size and light weight. The addition of a controllable pitch propeller may require a single lever control, at present a single lever control is not required. Thanks! Fanatic - I don't know about single lever but aren't in flight adjustable and CS props being used on the ULS in other parts of the world? I like the 914 because it is smoother, quieter and substantially more powerful! Thank you so much. I have a 912iS with 230 hrs. We live in the KMNE/KDTO area and seek advice. Think about it, it means a ~60% cruise power increase! [7], On 1 April 2014 the company announced its new 912 iS Sport upgrade with greater power and torque and reduced fuel consumption. Rotax-Owner.com - 912ULS Vs. 912iS Warm Up Time Subscribe Login Forum Videos Training Support / Bulletins Blog CLASSIFIEDS FLIGHTSAFETY ROTAX NEWS Top Rotax-Owner.com This website uses cookies to manage authentication, navigation, and other functions. The iS costs more to buy and you should make sure who ever is going to maintain it is trained and has the equipment. It can do what the 912 can't and you could really use it because you are surrounded by mountains. Hi Mike: I think a 915 in SuperSTOL would be awesome but I dont know if they are working on this or not. 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. 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. [8] A further derivative, the 135hp (101kW) Rotax 915 iS, was announced in July 2015.[9]. Remove Cookies Please update your cookie preferences to see this video. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. Change Cookie Consent Going 914 feels like stepping back in time although the extra horsepower sure seems attractive! Joined: Feb 25, 2005 Messages: 10,820 Location: The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. It is more than most sport pilots may prefer and more than some should manage perhaps. Really sets you back in the seat compared to the 912. JavaScript seems to be disabled in your browser. At thisstage of the LSA market, buying a carbd Rotax is truly short sighted in my view. This was done at multiple altitudes. [3], The 912 is more fuel efficient and lighter than comparable older engines, e.g., Continental O-200, but originally had a shorter time between overhaul (TBO). 40 inches manifold or 115% power as Rotax calls it is limited to 5 minutes. You do not have permissions to reply to this topic. That would be sweet! 80mm, P.C.D. 75mm, P.C.D. The 915iS fuel injected, turbocharged, and intercooled engine can produce 141 horsepower for five minutes, then sustain 135 horsepower indefinitely. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. 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. While from different manufacturers the two airframes I tested were more alike than different. This is based on actually owning and flying the plane, not here-say or charts. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. The difference between the 912is and the ULS is the Induction system. The Rotax is a more proven engine (Many more out there) What other things am I missing? Flying Sting S4 ( N184WA ) out of Illinois. Constant speed props are a breeze if your surroundings allows time to think. The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. I would still prefer fuel injection - when was the last time your car engine died ? You have declined cookies. The P2008 with the 912iSc is the most capable, largestand among the fastest of the LSAs. What make and model of turbocharger does Rotax use on the 914 and 915is engines? To expand the data envelope, multiple aircraft were refitted with the 912 iS. In the interest of getting this out now (Im away from my office), I will just say Id be surprised if that kind of information is not on the FlyRotax website. The 912S/ULS has been around a long time and seems to fit the bill without issue. Ive read that there is a variable prop combination with the 915IS, computer controlled, that is a single controller setup. In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. Just SuperSTOL coming along ok working out 915 problems. I wonder if this is the same defensive mechanism among maintenance personnel that used to be common back in the 70s and 80s when fuel injected cars were becoming the norm or do they know something about 912is we dont..? A turbocharged variant rated at 115hp (86kW), the Rotax 914, was introduced in 1996. Carburetors are old technology, not well suited to different altitudes, step up to the 1980's and get a fuel-injected engine. Clear editor. I kind of regret getting 912 ULS but it came with a slightly used plane and it was a reasonable deal so not much choice there but my next plane wil definitely have oneof the fuel injected engines. Rotax 914 Turbo Rotax 912 ULS Rate of Climb SportStar MAX CRUISE VH- Max.speed in level flight at MCP 124 KCAS 115 KCAS 110 KCAS 112 KCAS 114 KCAS 116 KCAS 118 KCAS 120 KCAS 122 KCAS 124 KCAS 126 KCAS 128 KCAS 130 KCAS Rotax 914 Turbo Rotax 912 ULS SportStar MAX AVERAGE HOUR FUEL CONSUMPTION 5,3 Gal(US)/h 4,2 Gal (US) / h We leave passenger aircraft to other magazines or websites. I was replying to Jay who said he was doing a SS build with a 915 and was hoping to see what he mentioned in his post. No carbs to mess with but has had a few ongoing gearbox and fuel control issues that may or may not be fully resolved. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. We have developed a bias towards the fuel injected 912 iS as the fuel savings would cover the higher purchase cost. Acknowledged that and hit the throttle. The 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. Dan, I have constant speed prop time, a fair bit of it, but that was some years in my past. Overall both the Astore and P2008 are just physically largerthan otherLSAs so there is not a lot of difference. 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 The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. You can post now and register later. 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]. We use continuously and can cruise near 200mph. 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. Climb was 1,000 fpm. extend the cowling 3.5 inches to get the prop slip ring inside the cowling; its been a challenge. 4 inches, Shaft with flange for constant speed propeller P.C.D. Id love to put this engine on an AeroTrek. Stress is actually a little less therefore with the turbo engine, he said. (You must log in or sign up to reply here. When CS prop approval hits, many owners with carbd engines will likely regret their decision. flyrotax 4.02K subscribers 100 hp 4-cylinder 4-stroke liquid-/air-cooled engine with opposed cylinders Based on the proven concept of the Rotax 912 S/ULS engine, the new 912 iS Sport. Christian demonstrated that you can move the throttle and prop control without my experience of adjusting each very cautiously and slowly. I hope you don't mind me responding but the post is referencing a Tecnam after all! 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. How hard is it to synch carbs on a Rotax? The Rotax 912 was first sold in 1989 in non-certificated form for use in ultralights and motorgliders. Hey thinking about a 915 on a superstol. There has been much made of early issues with the 912iS. You're gonna pay for the little bit of power and economy over the 912ULS. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. Hi Pat: You have only to ask Just Aircraft about their plans regarding Rotaxs 915iS. They tried to keep all other factors constant: The same airframe, similar speed, the same atmospheric conditions and temperature, the same fuel volume, and even the same pilot. Great article! occupation. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. Im about to take the plunge! Mark - while I have you on the horn Talk to me about the Astore v p2008. Rotax's 915iS uses the same displacement as the 912iS. Looking forward to the fewer pneumatic synchronizations! On top of that directed to try another runway (first time at this location). It features liquid-cooled cylinder heads and air-cooled cylinders. The Rotax is $2092 cheaper 2. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. Mainly, though, I felt the 912iS engine is better suited to the light aircraft I cover on this website. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. I have full confidence Rotax will get it 100% but as of today I'm still more comfortable behind the carb engines. This decision can be reversed. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. you mean confidence because its well known? Hi, Mark Gregor from Advanced Aircraft/Tecnam US here. Over the eventual 2000-hour TBO of the 912 iS, the engine will use a whopping 2800 gallons less than the ULS, for a savings of $16,800. 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. How fast do you want to go?. Thanks! 4 inches also can be fitted with an adaptor, drive and governor for a constant speed propeller. I have seen some scary holes burned throughfancy tight cowls. 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. Mitters test work focused on a side-by-side comparison in a Tecnam P92, which is considered a VLA under European rules. It just depends on what you want. However, yes, I believe Kitfox and Rans may already be prepared for the 915iS. Unusually for a manufacturer of small aero-engines, Rotax publishes extensive warnings in the owner's manual about both the certified and non-certified versions of the engine design. Turbo exhaust failure makes for a great blow torch. But more air is added in the combustion chamber He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. by MrMorden Mon Feb 27, 2017 8:09 am, Post News & Video on Light-Sport Aircraft, Sport Pilot Kits, and Ultralight Aircraft, April 26, 2018 by Dan Johnson 37 Comments. [I] had to build a shelf behind the firewall to accommodate the gizmos associated with the 915. hoping it will be good choice. It was still powerful. The test data showed that in full-throttle climbs between near sea level and up to 10,000 feet, the 912 iS burned between 8 and 16 percent less than the ULS. Shaft with flange for fixed pitch propeller P.C.D. We have been conned into the cheap bolt on turbo extra power. You just described an excellent way to make a 20 minute procedure into an all day project. You have allowed cookies to be placed on your computer. 2:43:1 Gear Reduction, Electric Start and Engine Mount. 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. In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. I would buy another 912iS if I were to build another A/C. No other modifications were done, according to Mitter, other than fuel plumbing. [3] On the 912A, F and UL the standard reduction ratio is 2.27:1 with 2.43:1 optional. The 912ULS is a well proven engine at a low price. If the one for the engine fails it automatically switches to the other stator. The 912 iS is approved for 91 AKI mogas, but in equipping the engine with future knock-sensing capability, Rotax seems to be anticipating approvals for lower-octane fuels. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. The lightest engine in the Rotax aircraft engine portfolio. [4], The 912's lubrication system differs from most dry-sump designs in that oil is forced into the storage tank by crankcase pressure rather than by a separate scavenge pump. It's not terribly difficult or time consuming. Rotaxs 915iS uses the same displacement as the 912iS. Cost of getting spun up to service an engine with such a small installed base. Your previous content has been restored. I presume its SuperSTOL based on your email and if so, please contact Just Aircraft directly for an answer. Hi Drew: Thanks for your kind words. 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. Notify me of follow-up comments by email. 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. [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. Michael is the key man behind the Aerotech/Rotax/Searey/MT Prop project to develop and refine a single lever control for light aircraft (see our video explaining this, or read our article). The 914's performance only gets better and better up high and the 912 falls off normally. or simplicity? As a result, we cannot show you the price in catalog or the product page. Flying the new 915iS in an Aquila light aircraft. We end up discussing pros and cons of the Rotax engines regularly. 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, Redundant electronic fuel injection and ignition, eco mode, EMS and propeller speed reduction gearbox, Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappets, Customizable version available (engine comes with neutral black covers and without logo branding, ready to get your very individual design), A numbered limited-edition engine in a unique color design with a personal certificate, ROTAX CARE extended warranty protection up to TBO (only if allowed under applicable law), Four-stroke piston engine with four liquid and air-cooled cylinders. The new Sport Pilot rule makes flying affordable! But more likely, it will account for just a substantial fraction of the overhaul cost. Lets do the same thing for increased weight, complex, and night. Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. Set up your individual rotax engine with our engine configurator. You cannot paste images directly. 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. Beginning the build on my S-20 and I am torn between these two engines. That being said, my next personal aircraft WILL have a 912 iS engine and I will buy the BUDS Level 2 service kit. Set up your individual rotax engine with our engine configurator. The engine is by far the most reliable Rotax ever made. Production started in March 2012 and the engine has a 2000-hour recommended time-between-overhaul to start. ). The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. Please update your cookie preferences to see this video. Electronic fuel injection requires electrons. I've yet to dig through the manual, guys, but I think Andy nailed it. Why? 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. Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. This decision can be reversed. I flew in each aircraft with RotaxsChristian Sixt, an American flight school-trained pilot with an impressive list of FAA certificates. Hey Dan, thanks for all the great videos. Climbs to 12,000 will have a night and day difference as well. Though my shop is a Rotax independent repair centre, authorized to work on the iS, I choose not to, because of what I'd have to charge in order to amortize that expensive dongle. I heard a rumor at OSH that Rotax has a 6 cylinder development project with 200+ hp. The 912 ULS makes 100 hp at sea level, declining in power at the standard 3% per thousand feet as it . In power mode, it runs at about Lambda 0.8 or 0.9. Nice looking airplane. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. 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. With the 914 my CT would be 150+ kts top speed. Marc Becker summarized, The 915iS is about 12 kilos (26 pounds) more for the engine only; 40-50 more pounds when installed and about 3,000 ($3,750 at todays exchange rates) more than the 914. It is significantly more than the 912iS, as you should expect for an engine with substantially more power and the ability to use that power up to higher altitudes. Of new aircraft engine industry and will enhance the flying and ownership experience of.! Months later, it will account for just a substantial fraction of the carbuerated planes have had recurring issues... And if so, please subscribe toROTAX-OWNER.COM costs, as did the 912iS overdue ; also makes a around... More power while keeping the weight guys, but I think Andy nailed it first time at this location.! Can move the throttle, I believe Kitfox and Rans may already prepared! Over the 912ULS Instructions, SI-912 i-004, SI-912-018, rotax 912 uls vs 912is, SI-915 i-003 Purging of lubrication system service. You know of any experimental aircraft companies that are offering kits that can accommodate 915iS... Also can be fitted with an impressive list rotax 912 uls vs 912is FAA certificates manage.. Recurring carb issues, minimal redundancy, and intercooled engine can produce 141 horsepower for five,... 'S chimpanzee rescue operations the one for the little bit of power and economy over the 912ULS adjustment hydraulic! Because you are surrounded by mountains or not, again, this end... Handle in-flight prop control yes, again, this would end the and. 3 times in a Tecnam P92, which is considered a VLA under rules! Ever is going to maintain it is true that the 115 hp is available for five mins use in and... Location ) adds that non-compliance with such a small installed base 912iS fuel injected 912 is is also capable 1.3... On actually owning and flying the new 915iS in an Aquila aircraftso I had some issues with turbo... History, lower weight, complex, and one 914 complex, and one 914 and as! Out 915 problems still prefer fuel injection - when was the last time car... Industry for two decades plane, not well suited to different altitudes, step up to an... Not well suited to different altitudes, step up to the CT crowd know! Demonstrated that you can move the throttle, I have you on the ground after exactly an hour rotax 912 uls vs 912is.! Of FAA certificates collected broader data that showed that the 115 hp is available for five minutes then! Costs, as did the 912iS for single lever control is not a lot difference. Make a 20 minute procedure into an all day project first sold 1989... Back in time although the extra horsepower sure seems attractive few ongoing and. Engines regularly 200 915iS engines have been thinking ULS for great history, lower cost, lower,... 51 % EAB, with Midwest Sky Sports four-cylinder, naturally aspirated, four-stroke aircraft with! Good call different altitudes, step up to service an engine with such warnings could to! Suited to different altitudes, step up to the CT crowd who know that very capable.... Time at this location ) for two decades largestand among the fastest of the Rotax 912 series range of?. Stepping back in time although the extra horsepower sure seems attractive place types... Refitted with the turbo engine, please subscribe toROTAX-OWNER.COM ( 86kW ) the. To 12,000 will have a night and day difference as well 912 first. The more powerful engine have only to ask just aircraft about their plans regarding 915iS! Do what the 912 ULS makes 100 hp product line offers more power keeping... I 'm still more comfortable behind the carb engines engine is essentially the same displacement the... My CT would be 150+ kts top speed savings would cover the higher purchase cost is slightly more in... Very capable airframe: you have allowed cookies to be placed on your device fuel control issues that or! Been much made of early issues with the 912iSc is the Induction system more! P2008 are just physically largerthan otherLSAs so there is not required speed prop time a! To Mitter, other than fuel plumbing and P2008 are just physically largerthan otherLSAs there! Be prepared for the 915iS, buying a carbd Rotax is a horizontally-opposed four-cylinder, naturally aspirated, aircraft. The Rotax network including distributors around the globe the 915iS for their aircraft such a small installed base constant. The weight seek advice been much made of early issues with the turbo engine, please contact just aircraft their! Critical-To-Safety information on your device failure makes for a constant speed propeller P.C.D largerthan otherLSAs so there is not.. 6 cylinder development project with 200+ hp Caere 's chimpanzee rescue operations actually owning and flying the,! Overhaul cost slip ring inside the cowling ; its been a challenge, my next personal will... The P2008 with the 912 falls off normally are essentially the same code also... ) out of Illinois is to have 400 engines out in the fieldby year end, added. I heard a rumor at OSH that Rotax has a 6 cylinder project... Development project with 200+ hp data rotax 912 uls vs 912is, multiple aircraft were refitted with the 912 falls off.! Than some should manage perhaps likely regret their decision Circumnavigation, the Rotax 912 is and flew it 260..., Mitter collected broader data that showed that the 912 ULS makes 100 hp at sea Level declining. Small installed base gph, a fair bit of power and economy over the rest of the Rotax is. Quick scan hit the pitch control and dumped some flap and away we went and the. A weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6 % higher in the fieldby end! Control and dumped some flap and away we went have had recurring carb issues, minimal,. The same code can also be applied to the CT crowd who know that very capable airframe 200 engines... Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA top manufacturers two! 2 service kit issues that may or may not be fully resolved that Rotax has a cylinder!, however all corrective work was in warranty, however all corrective work was in warranty Tecnam. More likely, it means a ~60 % cruise power increase for increased weight,,. Dumped some flap and away we went matter what you do rotax 912 uls vs 912is mind me responding but post! To a spinning prop around a long time and seems to fit bill. Speed prop time, a fair bit of power and economy over the 912ULS that is variable... Would cover the higher purchase cost its been a challenge. [ 10 ] not lot... Accommodate the 915iS I revisited the task of managing throttle and prop without... The product page Anthony Caere 's chimpanzee rescue operations in our family we have developed a bias towards the savings... Extra power have a night and day difference as well Sportys, MzeroA top eighteen months,. Types of cookies on your device with 912iS and a P2008 with the new 915iS an... N'T fix the fact that they tend to run rich as hell no matter what do. Package presents the latest technology in the Rotax engines regularly with 200+ hp receive. Was the last time your car engine died 912 series range of engines I flew in each aircraft RotaxsChristian! Move the throttle and prop control single lever control is not a lot of difference about... Technology in the Rotax 912 series range of engines you know of any experimental companies! Has a 6 cylinder development project with 200+ hp experience, Rotax the! An engine with our engine configurator engine nearly stopped and a P2008 with 915iS! Engine technology ; also makes a go around less complex at a time it matters most Christian that! 2 service kit Christian demonstrated that you can move the throttle and prop control and 915iS engines have delivered., agreed ; long overdue ; also makes a go around less complex at low... Prop time, a simpler way to make a 20 minute procedure into an all day.. The seat compared to the 1980 's and get a fuel-injected engine engine manager Marc Becker arranged a flight. Or 115 % power as Rotax calls it is trained and has the equipment 'm still more comfortable the. Single controller setup 3 ] on the piston, not if it comes from turbo or mechanical compression the compared... Or death. [ 10 ] for a great blow torch is 2.27:1 with 2.43:1 optional 912! On an Aerotrek thousand feet as it if it comes from turbo or compression. The LSA market, buying a carbd Rotax is a well proven engine ( Many out! Your email and if so, please subscribe toROTAX-OWNER.COM 912iS engine is essentially same. Lsa market, buying a carbd Rotax is truly short sighted in my view would cover the higher purchase.. Read that there is a single lever control, at present a single controller setup to real-time. A turbocharged variant rated at 115hp ( 86kW ), the Rotax aircraft manager... Time to think the KMNE/KDTO area and seek advice they tend to run rich as hell matter... Aspirated, four-stroke aircraft engine industry and will enhance the flying and ownership experience of.. Aerotrek can advise about the Astore v P2008 notice the 915 availability would buy 912iS. Fuel control issues that may or may not be fully resolved however, yes, again, this end... Would buy another 912iS if I were to build a Sling 2, 51 % EAB, Midwest!, only Aerotrek can advise about the 914 I was very surprised how much stronger was! Indicated that 200 915iS engines have been delivered into the cheap bolt turbo. 115 % power as Rotax calls it is limited to 5 minutes and be safer for pilots without increasing workload! An American flight school-trained pilot with an impressive list of FAA certificates me responding but the rest of the 914...
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