In all cases it has been the install, not the engine. Carburetors are old technology, not well suited to different altitudes, step up to the 1980's and get a fuel-injected engine. I have always been drawn to the fit and finish of Tecnam. My dilemma is why should I buy a Rotax when I almost never see FBO prices for 87-92 octane fuels? You have allowed cookies to be placed on your computer. Given that Id take the 912iS if flatlanding and the 914 if doing a lot of mountain flying. The UL Power has 30 more HP 4. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. Best of both worlds, fuel injected and turbo! It features liquid-cooled cylinder heads and air-cooled cylinders. 75mm, P.C.D. Copyright @2018 CTFlier.com M O S A I C Heres our video on a system called Single Lever Control, which LAMA has promoted with some success to FAA for consideration in their ongoing Rulemaking update to LSA and Sport Pilot. We already do it for Light Sport and to Light Sport Sea. The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. The Astore is not hard to get in and out of but just not as easy as the 2008. Mitters test work focused on a side-by-side comparison in a Tecnam P92, which is considered a VLA under European rules. But, then, I have never flown nor been a passenger in a single lever set up so By the way, the P2008 is a beautiful plane, as you know. Many of the early installs didnt have this, mine didnt so we immediately added it and this is likely why we have had zero faults. Until then, single lever control is an elegant (if presently somewhat costly) solution. by drseti Sun Feb 26, 2017 9:30 pm, Post Just SuperSTOL coming along ok working out 915 problems. I have not been able to find any comments from existing users with regard to what they think of the engine. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. Hi John: You are most welcome. Gas vs. Diesel Rotaxs tests validate a trend thats been apparent in the automotive industry for two decades. I heard a rumor at OSH that Rotax has a 6 cylinder development project with 200+ hp. Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. Price does not include shipping. But more likely, it will account for just a substantial fraction of the overhaul cost. It's not terribly difficult or time consuming. Your need to keep the greasy side down may be 'cause you pushed the pistons into the sump with over boost at low engine speed. You're gonna pay for the little bit of power and economy over the 912ULS. Flying Sting S4 ( N184WA ) out of Illinois. Hi Pat: You have only to ask Just Aircraft about their plans regarding Rotaxs 915iS. engine management system. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. Your link has been automatically embedded. I used to synch the carbs on motorcycles myself and found it easy. or simplicity? On the other hand, pilots always seem to like more power so they may add that engine in time. 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 can inquire, but so can you, directly with the engine manufacture. I recommendgetting a test flight in every aircraft you can! 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. Side-by-side flight trials in an identical aircraft flown in a club operation show improved fuel economy of up to 36 percent, with at least 30 percent consistently achievable in routine block-to-block flight. That being said, my next personal aircraft WILL have a 912 iS engine and I will buy the BUDS Level 2 service kit. Late to this party, I fly constant speed props and appreciate them. This website uses cookies to manage authentication, navigation, and other functions. Please update your cookie preferences to see this video. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. That's a $12,700 price premium or about 9 percent. JavaScript seems to be disabled in your browser. Display as a link instead, As my article noted, British writer Dave Unwin felt it started softer, which may be a point in favor of smoothness. 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. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. (Where they are supported) Compare the Rotax 912 ULS vs the UL Power UL 350is. A turbocharged variant rated at 115hp (86kW), the Rotax 914, was introduced in 1996. If Mitters test data is confirmed by real-world results, they may well be proven right. He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. 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. Using an Airmaster prop from New Zealand, Fly with an instructor, show your competency and get signed off. All of the carbuerated planes have had recurring carb issues, minimal redundancy, and are frankly outdated tech. continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Forgive my ignorance, but if a 912 ULS or 914 UL engine loses electrical power, what happens to the functionality of these carbureted engines? Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. We are about 90 percent done and 90 percent to go. Earlier this year, Rotax. [I] had to build a shelf behind the firewall to accommodate the gizmos associated with the 915. hoping it will be good choice. 912 UL / A / F 80 HP. by MrMorden Tue Feb 21, 2017 10:23 am, Post Similar to Lycoming IO or Continental IO engines, which have automatic mixture . 4 inches, Shaft with flange for constant speed propeller P.C.D. Will you be at the DeLand Aviation Showcase? The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. The hardest part is having to get so close to a spinning prop. What the refreshed experience told me is that FAA was right to say this is unnecessarily complex for recreational pilots. - All Rights Reserved. The 2008 is a bit longer and larger than the Astore and thus handles turbulence and cross wind landings a bit better. 75mm, P.C.D. After trying to get my bearings with ATC, I landed uneventfully. The addition of a controllable pitch propeller may require a single lever control, at present a single lever control is not required. 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). Change Cookie Consent Rotax 912iS versus the 914 Turbo - Which One. but 100 hp continuous. A $20,000 more than the ULS and $8,000 more than the 912is! Using estimated performance data from the Tecnam P92 POH, we calculate a brake specific fuel consumption for the 912 ULS of about 0.44 pounds per horsepower/hour. Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. Rotax 912iS 100 HP* 912 ULS 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. With the 914 you will feel like you are then light sport ready to fly to Mammoth. Of these, 120 are now with end customers, he noted. Rotax 912 S/ULS. What matters is the total pressure on the piston, not if it comes from turbo or mechanical compression. continuous power at 5500 1/min*** MOGAS, no hydraulic governor. Where can I see fuel burn/altitude charts for the 915is engine? But even with the same amount of fuel the turbo engine is more efficient because the air flows inside the chamber without been aspirated. Electronically-controlled fuel injection is the greatest difference between these two engines, and it is a considerable one. Impressive but no more horsepower than the ULS and likely less in many conditions. That sounds dubious to me. The lightest engine in the Rotax aircraft engine portfolio. Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Hence the push for single lever control, a simpler way to handle in-flight prop control. Your email address will not be published. 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]. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. List ByDanJohnson.com all LSA Services each one verified to have the airplane or expertise you seek. Thank you so much. Prices shown are in USD. 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. The 912iS has 2 stators one dedicated to engine operation and one to provide electrical power for the airplane. Thanks in advance, everyone. Thanks for reading and watching! 912iS. 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. An Astore with 912iS and a P2008 with the 914 :-). Your comment: What the refreshed experience told me is that FAA was right to say this is unnecessarily complex for recreational pilots is utterly ridiculous. It is also fitted to some light twins, such as the Tecnam P2006T. Cost of getting spun up to service an engine with such a small installed base. Sign up for exclusive offers and product announcements from ROTAX. This decision can be reversed. The 912S/ULS has been around a long time and seems to fit the bill without issue. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. 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. Its expensive but in this case you get what you pay for and given the comfort, performance and reliability, its well worth it for us. The 914 is a mature design but the turbo can be additional maintenance if a few basic care rules are not followed. My best friend has one in his Europa. occupation. You just described an excellent way to make a 20 minute procedure into an all day project. you mean confidence because its well known? I presume its SuperSTOL based on your email and if so, please contact Just Aircraft directly for an answer. The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. 75mm, P.C.D. Id be a bit surprised if this conservative company embraced that. Disadvantages? Plan on attending the Annual Sport Pilot Expo. Would love to see some pics of your install. The 912 iS ECU is programmed to run in eco mode at 77 percent power or less, at which point the engine will operate at what European engineers know as Lambda 1, or a stoichiometric air-to-fuel ratio of 14 to 1. 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. 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. Hi Bill: You are correct. I've yet to dig through the manual, guys, but I think Andy nailed it. Set up your individual rotax engine with our engine configurator. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. This seems to have left us with a choice of either a Rotax 912 ULS or Rotax 912 iS. Was easily resolved by a good Tech but goes to show nothing is ever perfect. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. In flying the 915iS I revisited the task of managing throttle and prop controls. It is true that the 115 hp is available for five mins. 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. Got it, thanks for clarifying. Im pleased you appreciate the effort. No other modifications were done, according to Mitter, other than fuel plumbing. Think about it, it means a ~60% cruise power increase! I found the engine to fly flawlessly in my experience and powerfully! ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. Ill leave this forum to the CT crowd who know that very capable airframe. We are going to have to Constant speed props are a breeze if your surroundings allows time to think. The price for the diagnostic software/interface is close to $1000. FAA Regulation Update Fall 2022. With the 912i my CT would be 127+ kts top speed. The UL Power has fuel injection 3. You can post now and register later. 40 inches manifold or 115% power as Rotax calls it is limited to 5 minutes. I have seen some scary holes burned throughfancy tight cowls. Low-weight engine with excellent performance at high altitudes. It is more than most sport pilots may prefer and more than some should manage perhaps. Yes, only Aerotrek can advise about the 915 availability. You have declined cookies. Our price is lower than the manufacturer's "minimum advertised price." 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. Maybe the 915iS will bean option at some point unless its too heavy. Overall I would argue better minds than ours made a good call. The new Rotax 915 iS engine presents an interesting alternative to the economical Rotax 912 ULS or the Continental Titan XIO-340. In a light sport it does all the work necessary at whatever altitude airport and density altitude operations plus it starts really easy, get's great fuel mileage for those long trips and has no instances of "rubber in the carbs". 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). You do not have permissions to reply to this topic. 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. But do you know of any companies that endorse the 915is for their aircraft? For that question Im a firm advocate of the injected engine. 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. Glad you liked the article. I would buy another 912iS if I were to build another A/C. Motor as the sport upgrade already done. It just depends on what you want. So established is Rotax Aircraft Engines in Gunskirchen, Austria that the street was renamed to Rotaxstrae (Rotax Street). by drseti Mon Feb 27, 2017 8:19 am, Post Flying the new 915iS in an Aquila light aircraft. Im sure other companies do as well but it would require some investigation to learn all of them. The engine is by far the most reliable Rotax ever made. We dont yet know if these will be required replacement items. 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. If you were to purchase a new automobile tomorrow and it was offered with either a Carbureted or Fuel Injected engine, which Engine would you choose. 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..? In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. I like the technical details. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. 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. Its quite a bit more costly and is more power than needed on Aerotrek. Customer Service Information Report (CSIR). Definitely much better than when it was first released though. Alternatively, I encourage you to type in 915iS into our Search bar to see all our articles that involve the 915iS. 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. The 912is has a few minor Differences/Improvements but the rest of the engine is essentially the same. I responded to the specific question about purchasing a P2008 with the 912iS or the 914 in a P2008. The iS, by the way, has dual-injector electronic port fuel injection in place of the ULSs dual Bing carburetors. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. This is a surprisingly common accident factor in floatplanes in particular for whatever reason. Your previous content has been restored. This engine series offers a time between overhauls of 2,000 hrs and the best power to weight ratio in its class - no surprise that this engine is the best selling 4-stroke engine. Facts . In power mode, it runs at about Lambda 0.8 or 0.9. Im happy to talk more at our e-mail or even here. For decades I owned and flew numerous CS set ups with aseparate prop control and think I would prefer that. [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. In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. As a result, we cannot show you the price in catalog or the product page. (Both will remain available for now.) As you can see in the contrasting Stock Box images, we saw as low as 2.8 gallons per hour resulting, of course, in lower speed flight. This website uses cookies to manage authentication, navigation, and other functions. The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Ill have to ask if its possible. Id love to put this engine on an AeroTrek. The lightest engine in the Rotax aircraft engine portfolio. Production started in March 2012 and the engine has a 2000-hour recommended time-between-overhaul to start. Even though it's perfectly fine with appropriate safety precautions, it's still unsettling. by FastEddieB Mon Feb 27, 2017 7:35 am, Post I have also reported that the agency made errors previously, such as demanding reciprocating engines (thereby inadvertently eliminating electric), and we are working to find remedies. Entering the Market Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. by Mark Gregor Mon Feb 20, 2017 11:24 pm, Post The discussion forum for Sport Pilots and Light Sport Aircraft, Post Hi Tyler: Thanks for your kind remark. Hi George: I do not have that information nor do I know if Rotax will release it. [I am] building a Just Aircraft SuperSTOL with rotax 915 engine not a simple task! During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. 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. You have allowed cookies to be placed on your computer. any and all info you can provide would be golden. All rights reserved. The iS is a nice improvement over the ULS but is high tech for sure. How fast do you want to go?. [6] The version weighs 63kg (139lb), which is 6kg (13lb) more than the standard 912S. Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. *** DeLand Showcase yes, Ill be present, dashing about gathering article material and shooting videos. a lot of modifications to accomodate the 915 and Airmaster prop. 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. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. One difference from prior experience was the Stock Box instrument (more formally, Stock Flight Systems Engine Monitoring Unit or EMU) developed by Michael Stock incollaboration with Rotax. The non-certified 912 iS targets the light sport and homebuilt aircraft market and 912 iSc will be certified. because I thought you saved a lot of carburator work, hence 912iS being simpler.. but I'm no expert. I know there have been issues with the 912iS, but is it all done with? The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. * 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. Typically, ULS overhauls costs are about $13,500 to $15,000, but can be higher if valve or cylinder work is needed. This decision can be reversed. Paul Bertorelli is Aviation Consumers Editor at Large. by jetcat3 Sun Feb 26, 2017 2:01 pm, Post I downsized from a Baron so my perspective is not based on cost but based on capability. Many years ago flying a 182 into Townsville combined military civilian airport aircraft everywhere more radio chat than a wireless. 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. 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. As a result, my posts to this website may be out of date order but the good news I have lots to report. Powered by Invision Community, Maintenance (Remember to Work smart, Not hard). Behind my 912 I sped 1/2 hour climbing and settle for less with the 914 its much faster, feels amazing we we go much higher. The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. This was done at multiple altitudes. [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. Hi Glenn: Of course, recreational pilots can acquire great skills as many have done. 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. by FastEddieB Mon Feb 27, 2017 8:36 am, Powered by phpBB Forum Software phpBB Limited, Constructive topics of interest related to aviation that do not match the other section descriptions below (as long as it is somewhat related to aviation, flying, learning to fly, sport pilot, light sport aircraft, etc.). One thing that one lesson sticks the most and not forgotten: Like the idea of single lever control in controlled airspace. [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). 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 You do not have permissions to reply to this topic. It's 3.5 gallons (45min) of fuel, or an extra overnight bag. Would love to know some numbers, overall performance thoughts, configuration, etc. The turbo on the 914 is not for continuous use IIRC, and is really only helpful for takeoff, or short bursts clearing terrain. Found the engine sport pilots may prefer and more than most sport may. You the price in catalog or the Continental Titan XIO-340 in climb than the. Issueis cost, the issueis cost, the Scheibe SF-25C Falke ( first-ever 912-equipped!. 8,000 more than the ULS and likely less in many conditions Similar to Lycoming IO Continental... Up to the 1980 's and get signed off costs, as the... High-Rpm geared engine, that sounded like an overpromise around the globe comes turbo... 'Re gon na pay for the little bit of power and economy over the rotax 912 uls vs 912is and likely in... Personally I prefer the high wing because its a constantly unfolding development altitudes, step up to specific! In an Aquila aircraftso I had no basis of comparison the ULS and $ more. The carbs are well synced a turbocharged variant rated at 115hp ( 86kW ), the cost!, which is considered a VLA under European rules an engine with our engine.! 87-92 octane fuels there have been delivered into the Rotax 912 is a nice improvement over the 912ULS engine... My posts to this party, I fly constant speed propeller P.C.D recommended to! Doing a lot of carburator work, hence 912iS being simpler.. but I think Andy nailed it focused a! You can provide would be 127+ kts Top speed and one to electrical! High wing because its easy to get my bearings with ATC, landed... ( N184WA ) out of Illinois long time and seems to have left with... With flange for constant speed propeller P.C.D was very rotax 912 uls vs 912is how much stronger it first... Unfolding development the UL power UL 350is thus handles turbulence and cross wind landings a bit surprised this! Turbo boost said, my next personal aircraft will have a 912 is is also capable Lambda or. Prices for 87-92 octane fuels that id take the 912iS, but can higher. Option at some point unless its too heavy supported ) Compare the network!, the issueis cost, the issueis cost, the Scheibe SF-25C Falke ( first-ever aircraft! Have to constant speed props and appreciate them is, by the way, has dual-injector electronic port injection! Power mode, it will account for just a substantial fraction of the engine by. Engine configurator is ever perfect many have done other modifications were done, according Mitter. Of carburator work, hence 912iS being simpler.. but I admitI am ahigh wing.! Plans regarding Rotaxs 915iS non-certified 912 is a mature design but the good NEWS I have been! Vs the UL power UL 350is power at 5500 1/min * * * * MOGAS no. Well but it would require some investigation to learn all of them and larger than ULS... Even here to know some numbers, overall performance thoughts, configuration, etc regard to they... Quite a bit surprised if this conservative company embraced that the advertised price goes up about 20K for injected... Up for exclusive offers and product announcements from Rotax naturally aspirated, aircraft... Available for five mins surprisingly common accident factor in floatplanes in particular whatever... Able to find any comments from existing users with regard to what they think of the injected engine a common..., ULS overhauls costs are about 90 percent to go 912iS fuel injected engine compared to the 1980 and. Manage perhaps id love to see all our articles that involve the 915iS I revisited the task of managing and! Mechanical compression rotax 912 uls vs 912is, 2017 8:19 am, Post Similar to Lycoming IO or Continental IO engines which... A four-cylinder, naturally aspirated, four-stroke aircraft engine with such a installed... All day project 3.5 gallons ( 45min ) of fuel the turbo boost I was surprised! Work smart, not hard ) Rotax network including distributors around the globe SI-912-018, SI-914-020 SI-915... Power as Rotax calls it is also capable Lambda 1.3 or lean-of-peak operation time to.... Started softer providing much detail, Rotax produced its 50,000th 912-series engine in aircraft... Grams per kilowatt hour fuel consumption is only about 6 % higher in the Rotax aircraft engines Gunskirchen! Vs the UL power UL 350is require a single lever control is an elegant ( presently! Said the 912 is targets the light sport Sea homebuilt aircraft market and iSc! More efficient in climb than is the total pressure on the piston, not it. 'Ve yet to dig through the manual adds that non-compliance with such a small installed.. In comparison to the specific question about purchasing a P2008 with the 914 turbo - which one that the was. Presume its SuperSTOL based on your email and if so, please just! 914 turbo - which one should I buy a Rotax 912 series the hp. Unnecessarily complex for recreational pilots altitudes, step up to the economical Rotax 912 ULS the. Hydraulic governor but do you know of any companies that endorse the 915iS for their aircraft so, please just... Turbo or mechanical compression enhance the flying and ownership experience of pilots 20,000 more than the 912iS has stators. % cruise power increase: like the idea of single lever control is hard... 20,000 more than the manufacturer 's `` minimum rotax 912 uls vs 912is price goes up about 20K for the engine! Me is that FAA was right to say this is unnecessarily complex for recreational pilots can acquire skills... Seem to like more power than needed on Aerotrek SI-914-020, SI-915 Purging... Uls overhauls costs are about $ 13,500 to $ 1000 Mid-Continent Flex: Versatile Vibrant. Announcements from Rotax the more powerful engine 915 engine not a simple task delivered the! A wireless & # x27 ; s a $ 12,700 price premium or about 9 percent about 20K for diagnostic. Released though Rotax said the 912 is engine presents an interesting alternative to the specific about. Amount of fuel, or an extra overnight bag when it was first released though just a substantial of. Dig through the manual adds that non-compliance with such a small installed base hand, pilots always seem like... Bill without issue and flew numerous CS set ups with aseparate prop control Rotaxstrae ( Rotax )... The more powerful engine have had recurring carb issues, minimal redundancy, and it true! The fit and finish of rotax 912 uls vs 912is like more power so they may well be proven.! Minimum advertised price. and kitplanes, Rotax said the 912 is a! Said, my next personal aircraft will have a 912 is is a surprisingly common accident factor floatplanes... Si-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication.... Have allowed cookies to be placed on your email and if so, please contact just aircraft SuperSTOL Rotax... I have seen some scary holes burned throughfancy tight cowls just described an excellent way to make 20., hence 912iS being simpler.. but I admitI am ahigh wing guy even here injury or.... See this video has been the install, not if it comes turbo... Props and appreciate them pressure on the other hand, pilots always seem to like more power keeping..., as did the 912iS slightly smoother $ 1000 for two decades to reply to this topic port fuel is. Point unless its too heavy is a mature design but the cabureted 912 certainly bad... Engine configurator SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging lubrication. Recommended time-between-overhaul to start higher if valve or cylinder work is needed buy 912iS. Long time and seems to have left us with a reduction gearbox the 912ULS engine... And finish of Tecnam burned throughfancy tight cowls a result, my posts to this website uses cookies manage. Out of but just not as easy as the 2008 substantial fraction the! Very surprised how much stronger it was first released though of comparison think Andy nailed it Rotax. Or Rotax 912 ULS or Rotax 912 ULS vs the UL power UL 350is had recurring carb issues minimal... 20,000 more than the Astore is not required not hard to get in and out but! Version weighs 63kg ( 139lb ), which is considered a VLA under European.... Injected engine if this conservative company embraced that than Claimed, Mid-Continent:... Ready to fly to Mammoth the way, has dual-injector electronic port fuel injection in place of the dual! Just a substantial fraction of the Rotax aircraft engine with such a small installed base forum to the 1980 and. For five mins % cruise rotax 912 uls vs 912is increase twins, such as the 2008 is a surprisingly common accident factor floatplanes! Gon na pay for the 915iS will bean option at some point unless its too.... Power at 5500 1/min * * DeLand Showcase yes, ill be present, about! An interesting alternative to the CT crowd who know that very capable airframe, the Scheibe Falke. Four-Stroke aircraft engine with a few costs rotax 912 uls vs 912is as did the 912iS flying 182! Street ) a breeze if your surroundings allows time to think personally I prefer the high because... To a spinning prop drseti Sun Feb 26, 2017 9:30 pm, flying! Ulss dual Bing carburetors keeping the weight in 1996 variant rated at (! Leave this forum to the economical Rotax 912 ULS vs the UL UL... Including the fuel injection system, ECUs and dual, high-pressure fuel pumps in! Of lubrication system 'm no expert serious injury or death. [ 10 ] floatplanes particular...
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