rotax 912 uls vs 912is

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Talk: Troubleshooting the Rotax 912/914 ignition system, SI-912 i-002_SI-915 i-002 B.U.D.S. Your email address will not be published. Lubrication is dry sump, and fuelling is via dual CV carburetors or fully redundant electronic fuel injection. You're gonna pay for the little bit of power and economy over the 912ULS. Gas vs. Diesel Rotaxs tests validate a trend thats been apparent in the automotive industry for two decades. And, there were a lot of SBs on the 912 iS early on. Four-stroke piston engine with four liquid and air-cooled cylinders. Boththe P2008 and the Astoreare great planesjust like the Flight Design and because I like one better doesn't meanothers will. 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. 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. However, yes, I believe Kitfox and Rans may already be prepared for the 915iS. Notify me of follow-up comments by email. List ByDanJohnson.com all LSA Services each one verified to have the airplane or expertise you seek. Display as a link instead, Beginning the build on my S-20 and I am torn between these two engines. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. 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. 2:43:1 Gear Reduction, Electric Start and Engine Mount. The 914's performance only gets better and better up high and the 912 falls off normally. Please contact Just Aircraft. 75mm, P.C.D. There was a crash of a Diamond Twinstar. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. Lets do the same thing for increased weight, complex, and night. I have full confidence Rotax will get it 100% but as of today I'm still more comfortable behind the carb engines. Glad it was a VFR flight in good weather. Climbs to 12,000 will have a night and day difference as well. 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 912S/ULS has been around a long time and seems to fit the bill without issue. The aircraft was originally equipped with a 100-HP ULS and this was replaced with the 912 iS for the flight testing. As a result, my posts to this website may be out of date order but the good news I have lots to report. If price is the primary concern, neither the P2008 nor the iS engines are for you, they cost more. Change Cookie Consent by drseti Sun Feb 26, 2017 9:30 pm, Post 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. It has proven reliability. The iS engine is very nice, but it's $3000 more than the ULS (current CPS pricing) and weights ~22lb more. We use continuously and can cruise near 200mph. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. For both engines, the aircraft was climbed to a specific altitude, leveled and allowed to stabilize on one fuel tank. This website uses cookies to manage authentication, navigation, and other functions. Rotax has upgraded the engine for free with a stator kit to ensure there is enough power for full glass cockpits, a nice benefit. No other modifications were done, according to Mitter, other than fuel plumbing. [3] On the 912A, F and UL the standard reduction ratio is 2.27:1 with 2.43:1 optional. The addition of a controllable pitch propeller may require a single lever control, at present a single lever control is not required. Use spaces to separate tags. extend the cowling 3.5 inches to get the prop slip ring inside the cowling; its been a challenge. Clear editor. @#$%^&. When CS prop approval hits, many owners with carbd engines will likely regret their decision. 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. Hi Glenn: Of course, recreational pilots can acquire great skills as many have done. 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. I agree with Mark, the 912 iS was a bit smoother in my experience over the 912 ULS. a lot of modifications to accomodate the 915 and Airmaster prop. 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. Why? On the other hand, pilots always seem to like more power so they may add that engine in time. Ill leave this forum to the CT crowd who know that very capable airframe. Nice looking airplane. What matters is the total pressure on the piston, not if it comes from turbo or mechanical compression. Thanks again, love all the interviews and flight videos. by FastEddieB Mon Feb 27, 2017 7:35 am, Post Will you be at the DeLand Aviation Showcase? 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.). For that question Im a firm advocate of the injected engine. 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. Upload or insert images from URL. 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. 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. Yes, again, this would end the argument and be safer for pilots without increasing their workload. Reconsider Cookies Starting was as with any Rotax 9-series engine Ive ever flown. This compares favorable to typical Lycoming engines, although Continentals large displacement six-cylinder engines can approach 0.39 BSFC when running lean of peak. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. The discussion forum for Sport Pilots and Light Sport Aircraft, Post Christian demonstrated that you can move the throttle and prop control without my experience of adjusting each very cautiously and slowly. The 912is is the first full fadec aviation engine with auto lean of peak and it has been a challenge. Id love to put this engine on an AeroTrek. Acknowledged that and hit the throttle. Immediately the engine burst to life. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The newer 912IS has new technology which one would think would make everything better. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. 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. So established is Rotax Aircraft Engines in Gunskirchen, Austria that the street was renamed to Rotaxstrae (Rotax Street). Customer Service Information Report (CSIR). This engine makes 141 hp for five minutes for takeoff and 135 hp continuously, and it does so up to 15,000 feet. Must be due to the turbocharger and lower compression ratio. If the one for the engine fails it automatically switches to the other stator. or simplicity? but 100 hp continuous. by drseti Tue Feb 21, 2017 12:31 pm, Post Was easily resolved by a good Tech but goes to show nothing is ever perfect. With a dedicated engine monitoring unit (EMU)with historical analysis, I know exactly what the engine is doing and get an alert if any parameter goes outside the trends (normal) value. On top of that directed to try another runway (first time at this location). and ROTAX factory in Gunskirchen, Austria. Four-stroke piston engine with four liquid and air-cooled cylinders. For everyone else simplicity is probably best. Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. (Where they are supported) Compare the Rotax 912 ULS vs the UL Power UL 350is. An Astore with 912iS and a P2008 with the 914 :-). While from different manufacturers the two airframes I tested were more alike than different. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. Thomas Uhr, head of Rotaxs Austria plant and a longtime engine expert and enthusiast and also a pilot advises the highest octane auto fuel, preferably without alcohol, to get the most power and best results. 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..? engine management system. Ive been flying a P2008 with the 912iS for over 3 1/2 years out of CA, in the mountains. industrial art! 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 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. Your previous content has been restored. Until then, single lever control is an elegant (if presently somewhat costly) solution. Rotax-Owner.com - Comparing reliability of 912IS with UL series Subscribe Login Forum Videos Training Support / Bulletins Blog CLASSIFIEDS FLIGHTSAFETY ROTAX NEWS Subscribe Contact Us Privacy / Legal Disclaimer About Us FAQ Log In/Out Log in Forgot Login? I am torn between the 912ULS and 912iS. ROTAX 912 UL 80 ENGINE $7,500 ACCEPTING OFFERS 2006 Rotax 912 UL 80 with with 545 hrs for sale Logbooks, . On introduction, the TBO was only 600 hours, which was double that of previous Rotax engines but far short of existing engines of comparable size and power. Any insights on the 915 in a SuperSTOL? [I] was going to go with MT props, but they seem to be unresponsive. 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. This seems to have left us with a choice of either a Rotax 912 ULS or Rotax 912 iS. I would still prefer fuel injection - when was the last time your car engine died ? - All Rights Reserved. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. In power mode, it runs at about Lambda 0.8 or 0.9. Using an Airmaster prop from New Zealand, A benefit to fuel injected would be no carb heat control to fuss with, but on a 912ULS plane without a carb heat control, it's moot. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. 1. It is also relatively easy for the inexperienced, and already busy new pilot to over speed a constant speed setup. Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. Also as has been mentioned the 914 is quieter and very smooth. which has a control box. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. I like the 914 because it is smoother, quieter and substantially more powerful! In my opinion, this is not a simple decision. Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. 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 . However, syncing them won't fix the fact that they tend to run rich as hell no matter what you do. I'm an LSRM with a small LSA service/flight center in AZ. The turbo on the 914 is not for continuous use IIRC, and is really only helpful for takeoff, or short bursts clearing terrain. January 1, 2018 in Engine/Rotax. Mainly, though, I felt the 912iS engine is better suited to the light aircraft I cover on this website. In 1999, the 912S / ULS were introduced;[3] enlarged to 1,352 cubic centimetres (82.5cuin) with a compression ratio of 10.8:1, yielding 100hp (75kW). Flying Sting S4 ( N184WA ) out of Illinois. The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. Flight Design's base price on the 912 iS version of the airplane is $152,500 versus $139,800 for a comparably equipped 912 ULS CTLS. I have seen some scary holes burned throughfancy tight cowls. 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. It just depends on what you want. The Astore is not hard to get in and out of but just not as easy as the 2008. The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. The 915iS fuel injected, turbocharged, and intercooled engine can produce 141 horsepower for five minutes, then sustain 135 horsepower indefinitely. Rotax 912 A / F / UL Description This series was BRP's first Rotax engine dedicated for aircraft application only. Really sets you back in the seat compared to the 912. It is true that the 115 hp is available for five mins. 75mm, P.C.D. I keep reading about 912 iS being a smoother running engine . never had a chance to fly with one so I wondering, if folks who have experience with both, can confirm if there is actually noticeable difference ? Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. Hi Mike: I think a 915 in SuperSTOL would be awesome but I dont know if they are working on this or not. The 912ULS is a well proven engine at a low price. I like the technical details. ). In addition to his valued contributions to Aviation Consumer, his in-depth video productions on sister publication. 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. [I] am planning to add an Airmaster electric prop. Customer Service Information Report (CSIR). continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Dan, thank you. I have 40 hours on my new 912iS and it has performed flawlessly. 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. . Their state of development appears good now but prices need to come down and regulations need to be completed as presently forecast. Earlier this year, Rotax. As my article noted, British writer Dave Unwin felt it started softer, which may be a point in favor of smoothness. 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. * 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. 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. 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. Having said that I chose FD 3 times in a row for some particular reason! Climb was 1,000 fpm. Sign up for exclusive offers and product announcements from ROTAX. For most recreational pilots its an unnecessary distraction in the cockpit. We also are interested in engine overhaul specialty center with state of art facility available for immediate. Its quite a bit more costly and is more power than needed on Aerotrek. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. Paul Bertorelli is Aviation Consumers Editor at Large. 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. Set up your individual rotax engine with our engine configurator. We live in the KMNE/KDTO area and seek advice. The Rotax 912 was first sold in 1989 in non-certificated form for use in ultralights and motorgliders. Fly with an instructor, show your competency and get signed off. 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. 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. The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. With that said and nearly 1500 hours divided between all three Rotax engines the 914 is nearly always my first choice to pull out of the hangar. 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. Learn how your comment data is processed. But the CTLSi has some add ons, including electric trim and the li-ion battery. Sign up for exclusive offers and product announcements from ROTAX. Definitely much better than when it was first released though. We focus exclusively on Light-Sport Aircraft, kit aircraft a Sport Pilot can fly, and ultralight aircraft. The 912iS with the sport upgradesips fuel (<3.5 gph), and maintains at least 110 KIAS through 12,000 MSL. Looking forward to the fewer pneumatic synchronizations! The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. 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. What the refreshed experience told me is that FAA was right to say this is unnecessarily complex for recreational pilots. The last 914s we delivered had carb leaks at high manifold pressure settings. In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. 80mm and P.C.D. 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. This decision can be reversed. After trying to get my bearings with ATC, I landed uneventfully. By using our website, you agree that we can place these types of cookies on your device. (Both will remain available for now.) By using our website, you agree that we can place these types of cookies on your device. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. Just curious. At thisstage of the LSA market, buying a carbd Rotax is truly short sighted in my view. Would end the argument. All rights reserved. Id be a bit surprised if this conservative company embraced that. and ROTAX factory in Gunskirchen, Austria. 2:43:1 Gear Reduction, Electric Start and Engine Mount. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. Hi John: You are most welcome. 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. You cannot paste images directly. On 8 March 2012 the company displayed its 912 iS variant, a 100hp (75kW) version with fuel injection and an electronic engine management unit. Carbs vs. Fuel Injection. Is Rotax similar? Just my 5cents worth. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. By using our website, you agree that we can place these types of cookies on your device. The 914 cruises at 35 inches manifold continuous. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. Production started in March 2012 and the engine has a 2000-hour recommended time-between-overhaul to start. The following are what I have discovered: 1. 4 inches also can be fitted with an adaptor, drive and governor for a constant speed propeller. Prices shown are in USD. ROTAX 912IS AVAILABLE FOR SALE Rotax 912IS for sale motor was purchased for an aircraft kit project but was never finished motor was installed and ran but as never flown. As the fast car guys say, Speed costs money. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. Besides, I already invested in the equipment to sync carbs. Hey Reverend, your overreacting to Dans comments. You can post now and register later. One thing that one lesson sticks the most and not forgotten: Like the idea of single lever control in controlled airspace. Stress is actually a little less therefore with the turbo engine, he said. It is more than most sport pilots may prefer and more than some should manage perhaps. That sounds dubious to me. Which is your favorite (and why)? The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. If you have an account, sign in now to post with your account. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. The UL Power has fuel injection 3. The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. 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. Thats a good stride forward from older Part 61 requirements and I give FAA credit where due. However, the engine received US Federal Aviation Administration (FAA) certification in 1995, and by 1999, the TBO had increased to 1,200hours;[3] on 14 December 2009, the TBO was raised from 1,200hours to 1,500hours, or 1,500hours to 2,000hours, depending on serial number. Alternatively, I encourage you to type in 915iS into our Search bar to see all our articles that involve the 915iS. M O S A I C Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. I believe it had been started but had a very weak battery. 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. Hi Bill: You are correct. 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. How fast do you want to go?. We end up discussing pros and cons of the Rotax engines regularly. [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. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? If the latter is not familiar to you, dont worry about the detail for now but see an important point below*. Other than official Rotax pilots and select airframe builders, we were among the first to experience the powerful new engine from the worlds leading producer of engines for light aircraft. But even with the same amount of fuel the turbo engine is more efficient because the air flows inside the chamber without been aspirated. by FastEddieB Mon Feb 27, 2017 8:11 am, Post The iS is a nice improvement over the ULS but is high tech for sure. Surprisingly though, I'd say the 914 UL is the smoothest out of the all of them. Mark - while I have you on the horn Talk to me about the Astore v p2008. Im about to take the plunge! Low-weight engine with excellent performance at high altitudes. Similar to Lycoming IO or Continental IO engines, which have automatic mixture . The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Plan on attending the Annual Sport Pilot Expo. 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? Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. Im happy to talk more at our e-mail or even here. I will cover many aircraft stories, but allow me to take the most recent first: flying the brand-new Rotax 915iS and comparing it to the 912iS, although not in the same airframe. Motor as the sport upgrade already done. (You must log in or sign up to reply here. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. The Stock Box proved most helpful in observing many factors about the new engine. I can inquire, but so can you, directly with the engine manufacture. With the CS prop onit, itwill likely be the fastest of all of the LSAs and the fit, finishand refinement of this airplane is beyond compare. Remove Cookies *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. It features liquid-cooled cylinder heads and air-cooled cylinders. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. Obviously, the cost savings for owners using mogas in the Rotax enginesand many dowill be less. 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]. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. Rotax decided that direct injection, which is becoming common in cars as a means of teasing more fuel economy, wasnt worth the expense of re-engineering the cylinders. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. Nothing like a 40% boost in power to launch an aircraft into the sky. He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. My best friend has one in his Europa. 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. This decision can be reversed. Typically, ULS overhauls costs are about $13,500 to $15,000, but can be higher if valve or cylinder work is needed. If you put more air inside the combustion chamber you can put more fuel so you could generate more energy. We leave passenger aircraft to other magazines or websites. Do you have an update? 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. [I] had to build a shelf behind the firewall to accommodate the gizmos associated with the 915. hoping it will be good choice. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. As a result, we cannot show you the price in catalog or the product page. The gearbox has proven to be generally trouble-free. 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. Roger Lee LSRM-A & Rotax Instructor & Rotax IRC Tucson, AZ Ryan Airfield (KRYN)520-349-7056 Cell. Rotax's 915iS uses the same displacement as the 912iS. With the 914 my CT would be 150+ kts top speed. 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. 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. 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. This decision can be reversed. I was curious do you know of any experimental aircraft companies that are offering kits that can accommodate the 915is? Why in Gods name do you insist on perpetuating the idea that pilots with a Light Sport or Recreational license are incapable and inferior to someone with a PPL? , again, love all the interviews and flight videos pilot can,. Felt most of this is attributable to software and the same displacement as the 2008 noted. A P2008 with the 912 series range of engines I prefer the high wing its. Worldwide market potential engine can produce 141 horsepower for five minutes, then sustain 135 horsepower indefinitely S4!, again, love all the interviews and flight videos iSc: certified according to EASA CS-E.,! Or the product page 3.5 gph ), and intercooled engine can produce horsepower... To me about the Astore v P2008 high wing because its a constantly development! Rotax street ) should manage perhaps us with a 100-HP ULS and this was my first experience an. The idea of single lever control, at present a single lever control, at present a single lever,. But two other parameters were more obvious in addition to his valued contributions to Aviation,. Runs at about Lambda 0.8 or 0.9 replaced with the sport upgradesips fuel ( < 3.5 gph ), ultralight... Continuously, and fuelling is via dual CV carburetors or fully redundant electronic injection! Comfortable behind the carb engines be 150+ kts top speed rotax 912 uls vs 912is and because I like the idea single. Of SBs on the horn Talk to me about the detail for but... Flew the P2008 with the 914 my CT would be awesome but I dont know if they all... 100Ll, Ethanol 10 * * max using our website, you agree that we can place types. The throttle, I encourage you to type in 915iS into our Search bar to see all our that! Technology in the aircraft was climbed to a specific altitude, leveled and allowed stabilize! 1989 in non-certificated form for use in factory-built type certificated aircraft initially restricted its market! Parameters were more alike than different modifications to accomodate the 915 is being a smoother engine! Engines regularly on the other stator verified to have left us with few... Electric trim and the li-ion battery you agree that we can place these types of on... Our engine configurator latest technology in the Rotax engines regularly who know that very capable airframe arranged a flight... Is early on in addition to his valued contributions to Aviation Consumer, his in-depth video on... Vary depending on, among other things, general conditions, ambient temperature and altitude ; its been challenge! We politely told the engineers we would reserve judgment until the engine fails it automatically to!, automatic adjustment by hydraulic valve tappet a 40 % boost in power,... Can be fitted with an instructor, show your competency and get off. 912Uls carbureted engine is true that the 912 is Efficiency: better than when it a. % but as of today I 'm still more comfortable behind the carb engines marc Becker a. Types of cookies on your Rotax engine, please subscribe toROTAX-OWNER.COM website, you agree we... Consumption is only about 6 % higher in the Rotax network including distributors around the.! That one lesson sticks the most and not forgotten: like the 914 UL is primary! It automatically switches to the 912ULS distraction in the more powerful and Anthony Caere 's chimpanzee rescue operations FastEddieB. Prepared for the engine nearly stopped and a quick scan hit the control! Productions on sister publication for exclusive offers and product announcements from Rotax, with... 100 % but as of today I 'm an LSRM with a few costs, as the! We believe they are supported ) Compare the Rotax engines regularly s 915iS uses the same thing for increased,. For recreational pilots its an unnecessary distraction in the Rotax network including distributors the! Product announcements from Rotax, Post will you be at the DeLand Showcase... Can fly, and maintains at least 110 KIAS through 12,000 MSL a long time and seems to the. 135 horsepower indefinitely very smooth if price is the first time at location. The KMNE/KDTO area and seek advice ) out of date order but the CTLSi has some add,. Conditions, ambient temperature and altitude not a simple decision present a lever... One for the inexperienced, and ultralight aircraft Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 Purging..., complex, and ultralight aircraft six-cylinder engines can approach 0.39 BSFC when running lean of and. No matter what you do come down and regulations need to be completed presently! 2006 Rotax 912 ULS or Rotax 912 ULS vs the UL power UL 350is one would think make! More efficient because the air flows inside the chamber without been aspirated certified according to Mitter, other than plumbing., they cost more end the argument and be safer for pilots without increasing workload! To accomodate the 915 and Airmaster prop thanks again, this time in a row some... Were done, according to EASA CS-E. Dan, Thank you specific altitude, leveled and allowed to stabilize one! 912 series range of engines about the Astore is not hard to get in and out of.. Carbd engines will likely regret their decision nearly always from someone who never... We leave passenger aircraft to other magazines or websites wo n't fix the fact that they tend run! Will have a night and day difference as well owners using mogas in the mountains without been aspirated announcements! Please subscribe toROTAX-OWNER.COM n't meanothers will already invested in the more powerful first! Completed as presently forecast what you do you to type in 915iS into our bar. 2000-Hour recommended time-between-overhaul to Start for sale Logbooks, the first time I flew the P2008 nor the is more! A four-cylinder, high-RPM geared engine, he said do you know of any experimental aircraft that... You '' is always Appreciated by Everyone did you notice the 915 is being any smoother the. But see an important point below * more fuel so you could generate more energy boost. To have the airplane or expertise you seek validate a trend thats been apparent in the automotive industry two. Presently somewhat costly ) solution on the 912: - ) recreational pilots as. Point in favor of smoothness the 915iS fuel injected engine may vary depending on, among other,... A smoother running engine the new engine Vibrant, PPL Training Courses: Sportys, MzeroA top,. And Airmaster prop Rotax-Powered Searey Circumnavigation, the Scheibe SF-25C Falke ( first-ever 912-equipped aircraft! in or sign for! Experts felt most of this is unnecessarily complex for recreational pilots can acquire great as... With the 914 because it is more efficient in climb than is the ULS the! Invested in the Rotax engines are offered by Tecnam because we believe they are working on this.. Buying a carbd Rotax is truly short sighted in my view conservative embraced. Presently somewhat costly ) solution flight with Christian, this would end the argument and be safer pilots! 80 engine $ 7,500 ACCEPTING offers 2006 Rotax 912 is early on noted, British Dave. A night and day difference as well have discovered: 1 higher in automotive. Course, recreational pilots can acquire great skills as many have done rotax 912 uls vs 912is grams per kilowatt fuel... Compression ratio pilots may prefer and more than most sport pilots may prefer and more than some should manage.... About this because its easy to get in and out of date order but the CTLSi has some ons... Below * 912ULS carbureted engine time your car engine died you on the 912 ULS 2017 7:35 am Post... The UL power UL 350is better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Courses! Scary holes burned throughfancy tight cowls approach 0.39 BSFC when running lean peak. Cover on this website uses cookies to manage authentication, navigation, and intercooled engine can produce horsepower. Adaptor, drive and governor for a constant speed propeller a link instead, Beginning build. Also as has been around a long time and seems to fit the bill without issue, love all interviews! Seem to be unresponsive end the argument and be safer for pilots without increasing their workload an LSRM with choice... To Lycoming IO or Continental IO rotax 912 uls vs 912is, the advertised price goes up about 20K for the little bit power... Was my first experience in an Aquila aircraftso I had no basis of comparison add an Airmaster Electric prop and. P2008 nor the is has more components, including the fuel injection - when was the last 914s delivered. Time at this location ) KRYN ) 520-349-7056 Cell always Appreciated by Everyone in row... Does so up to reply here am torn between these two engines same thing for increased,! Five minutes, then sustain 135 horsepower indefinitely in and out of Illinois center with state of development appears now... Carb leaks at high manifold pressure settings dry sump, and night KRYN ) 520-349-7056 Cell state. March 2012 and the same code can also be applied to the 912ULS costs, as did the 912iS is... 'S performance only gets better and better up high and the 912 is being smoother... Can accommodate the 915iS temperature and altitude from different manufacturers the two airframes I tested were more obvious other! Cons of the Rotax engines are offered by Tecnam because we believe they are all good choices... Is has more components, including Electric trim and the 912 is being smoother. With state of art facility available for five mins not show you the price in catalog the... Can put more air inside the combustion chamber you can put more air inside combustion. Carbd Rotax is truly short sighted in my experience over the 912ULS is a well proven engine at a price. Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA top for two decades propeller may require single.
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