rotax 912 uls vs 912is

Climbs to 12,000 will have a night and day difference as well. I used to synch the carbs on motorcycles myself and found it easy. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. The lightest engine in the Rotax aircraft engine portfolio. 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 Adam, Just my 5cents worth. 2:43:1 Gear Reduction, Electric Start and Engine Mount. The 2008 is a bit longer and larger than the Astore and thus handles turbulence and cross wind landings a bit better. 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). When I can Ill look myself, perhaps I will add to this comment. by MrMorden Tue Feb 21, 2017 10:23 am, Post 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. Thanks, George. by Mark Gregor Mon Feb 20, 2017 11:24 pm, Post I prefer a supercharger over a turbocharger anyday. Gas vs. Diesel Rotaxs tests validate a trend thats been apparent in the automotive industry for two decades. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. In flying the 915iS I revisited the task of managing throttle and prop controls. According to the Rotax test data, the 912 ULS burned an average of 4.65 GPH in the test profile, while the 912 ULS burned 3.25 GPH for the equivalent power output, an efficiency improvement of 30.1 percent. That sounds dubious to me. I have full confidence Rotax will get it 100% but as of today I'm still more comfortable behind the carb engines. I have been thinking ULS for great history, lower cost, lower weight, etc. Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. 2:43:1 Gear Reduction, Electric Start and Engine Mount. Hi Mike: I think a 915 in SuperSTOL would be awesome but I dont know if they are working on this or not. Originally equipped with carburetors, later versions are fuel injected. Required fields are marked *. Best speed for the 912i is at 7,500'DA Best speed for the 914 is prolly 16,000'. Change Cookie Consent And I have two customers who now have the 912 iS (neither have needed work on their engine yet). I have seen some scary holes burned throughfancy tight cowls. This is beyond my experience base so will leave that debate to the forum. The 912ULS is a well proven engine at a low price. I believe it had been started but had a very weak battery. You're gonna pay for the little bit of power and economy over the 912ULS. Rotax 912iS versus the 914 Turbo - Which One. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. 4 inches and drive for hydraulic governor for constant speed propeller. The UL Power has fuel injection 3. It was still powerful. Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. By using our website, you agree that we can place these types of cookies on your device. For everyone else simplicity is probably best. You do not have permissions to reply to this topic. Having said that I chose FD 3 times in a row for some particular reason! 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. The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. @#$%^&. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. Four-stroke piston engine with four liquid and air-cooled cylinders. Going 914 feels like stepping back in time although the extra horsepower sure seems attractive! The electronic fuel injected Rotax 912iS is a recent development. (Tom, do you concur?). Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. We use continuously and can cruise near 200mph. 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? Would love to see some pics of your install. I would buy another 912iS if I were to build another A/C. Its quite a bit more costly and is more power than needed on Aerotrek. One thing that one lesson sticks the most and not forgotten: Like the idea of single lever control in controlled airspace. Change Cookie Consent Low-weight engine with excellent performance at high altitudes. After trying to get my bearings with ATC, I landed uneventfully. We have been having to do You can have separate throttle and mixture controls. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. It is also fitted to some light twins, such as the Tecnam P2006T. But do you know of any companies that endorse the 915is for their aircraft? Glad you liked the article. Naturally, he is also intimate with the 915iS. I know that being experimental, anyone can put any engine on any airframe they want. A year-long test by the company shows that the 912 iS delivers up to 30 percent better fuel economy than the 912 ULS. For that question Im a firm advocate of the injected engine. Perfected 4-stroke engine with full take-off power and engine management system. I have not been able to find any comments from existing users with regard to what they think of the engine. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. 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. 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. Similar to Lycoming IO or Continental IO engines, which have automatic mixture . 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. We are about 90 percent done and 90 percent to go. Facts . He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. Forgot to go full fine as traffic busy and on final looking good until ATC says, We have problem with aircraft on runway please go around.. The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. 80mm and P.C.D. 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. I like the 914 because it is smoother, quieter and substantially more powerful! Shaft with flange for fixed pitch propeller P.C.D. 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. Id love to put this engine on an AeroTrek. [3] On the 912A, F and UL the standard reduction ratio is 2.27:1 with 2.43:1 optional. 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. 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. Customer Service Information Report (CSIR). and ROTAX factory in Gunskirchen, Austria. The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. With the 912i my CT would be 127+ kts top speed. Toying with the idea of adding a second aircraft to my stable. So I'm about to buy a pipistrel virus SW and was wondering if the 912iS is a better option over the 912ULS in the general community's opinion. Motor as the sport upgrade already done. On the other hand, pilots always seem to like more power so they may add that engine in time. Overall both the Astore and P2008 are just physically largerthan otherLSAs so there is not a lot of difference. You can post now and register later. Looking forward to the fewer pneumatic synchronizations! We already do it for Light Sport and to Light Sport Sea. Glad it was a VFR flight in good weather. The non-certified 912 iS targets the light sport and homebuilt aircraft market and 912 iSc will be certified. [8] A further derivative, the 135hp (101kW) Rotax 915 iS, was announced in July 2015.[9]. That would be sweet! But in the wrong direction, if the companys recent year-long test of the 912 iS is to be believed. It features liquid-cooled cylinder heads and air-cooled cylinders. The Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as . The following are what I have discovered: 1. Takeoff roll is substantially reduced. In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. You have allowed cookies to be placed on your computer. I agree with Mark, the 912 iS was a bit smoother in my experience over the 912 ULS. The difference between the 912is and the ULS is the Induction system. We also are interested in engine overhaul specialty center with state of art facility available for immediate. FAA Regulation Update Fall 2022. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. Sign up for exclusive offers and product announcements from ROTAX. Paste as plain text instead, The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. I think LSA/SLSA is the way I want to go and am trying to figure it out. 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. and ROTAX factory in Gunskirchen, Austria. The 912is has a few minor Differences/Improvements but the rest of the engine is essentially the same. Dan, thank you. Just SuperSTOL coming along ok working out 915 problems. Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. The P2008 with the 912iSc is the most capable, largestand among the fastest of the LSAs. Hi Mike: I dont know what airframe you refer to regarding a 915iS install. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. Please contact Just Aircraft. Regardless all the electrical power to run the engine comes from the engine. Hi George: I do not have that information nor do I know if Rotax will release it. 75mm, P.C.D. 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. The last 914s we delivered had carb leaks at high manifold pressure settings. The hardest part is having to get so close to a spinning prop. Electronic fuel injection requires electrons. 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. This engine makes 141 hp for five minutes for takeoff and 135 hp continuously, and it does so up to 15,000 feet. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. Great article! [I am] building a Just Aircraft SuperSTOL with rotax 915 engine not a simple task! by MrMorden Mon Feb 27, 2017 8:09 am, Post It's 3.5 gallons (45min) of fuel, or an extra overnight bag. Engine with the best-in-class power-to-weight ratio. Beginning the build on my S-20 and I am torn between these two engines. Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. Greaser! 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. Plan on attending the Annual Sport Pilot Expo. At this setting the 914 is making a lot more horsepower that a 912. Starting was as with any Rotax 9-series engine Ive ever flown. You have declined cookies. Yes, only Aerotrek can advise about the 915 availability. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. We have excellent design capability skills available in metal or composites. Besides, I already invested in the equipment to sync carbs. 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. Thank you so much. Rotax Powertrains . [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. 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..? We dont yet know if these will be required replacement items. I would prefer the 914 if I was you. 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). In our family we have also had two 912ULS powered planes, and one 914. or simplicity? Nothing like a 40% boost in power to launch an aircraft into the sky. The discussion forum for Sport Pilots and Light Sport Aircraft, Post 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). It got me thinking - The 912iS is Fuel Injected, the 914 is turbocharged but is back to dual carbs. The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. The engine is available in the following versions: General Aviation Design Bureau T-32 Maverick, "Rotax Rolls Out 50,000 912-Series Engine", "Type Certificate Data Sheet No. Filed Under: BRP-Powertrain (Rotax Aircraft Engines), Splog, Dan; I hope you enjoy! Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. 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. Perfected 4-stroke engine with full take-off power and engine management system. The 912 iS is slightly heavier than the ULS, but this appears not to have been a factor in the trials. Carburetors are old technology, not well suited to different altitudes, step up to the 1980's and get a fuel-injected engine. Hi Bill: You are correct. I recommendgetting a test flight in every aircraft you can! 912 ULS | S 100 HP Engine with the best-in-class power-to-weight ratio. continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Rotax's 915iS uses the same displacement as the 912iS. Even as the 912 iS was being announced last year, Rotax was already flying comparison trials, but the initial fuel economy data it released was based on dyno runs and some flight testing. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. 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. This is a surprisingly common accident factor in floatplanes in particular for whatever reason. Fly with an instructor, show your competency and get signed off. Although diesel engines demonstrate measurably better efficiency than gasoline engines, gasoline engines arent standing still, theyre improving, too. 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. 80mm, P.C.D. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. Rotax 912 S/ULS. I'm always reluctant to be a first adopter of new aircraft engine technology. If you put more air inside the combustion chamber you can put more fuel so you could generate more energy. I live at 5,000 feet altitude, so a turbocharger is a must. Got it, thanks for clarifying. 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. Best of both worlds, fuel injected and turbo! My best friend has one in his Europa. It is true that the 115 hp is available for five mins. The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. This was done at multiple altitudes. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. Constant speed props are a breeze if your surroundings allows time to think. 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 Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. The newer 912IS has new technology which one would think would make everything better. By [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. Which is your favorite (and why)? Christian demonstrated that you can move the throttle and prop control without my experience of adjusting each very cautiously and slowly. 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. Disadvantages? 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. 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. 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? 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. Brilliant, agreed; long overdue; also makes a go around less complex at a time it matters most. Im about to take the plunge! This is based on actually owning and flying the plane, not here-say or charts. Mark - while I have you on the horn Talk to me about the Astore v p2008. The 912S/ULS has been around a long time and seems to fit the bill without issue. 912iS. The 912ULS is a well proven engine at a low price. Dan, 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. Discussion in 'Flight Following' started by kicktireslightfires, Jun 16, 2020. Hi Drew: Thanks for your kind words. Electronically-controlled fuel injection is the greatest difference between these two engines, and it is a considerable one. This website uses cookies to manage authentication, navigation, and other functions. Was easily resolved by a good Tech but goes to show nothing is ever perfect. Do you have an update? Your email address will not be published. By comparison, the 912 iS appears to be running at about 0.36 to 0.38 BSFC, which are the best numbers weve seen yet for aircraft gasoline engines. 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 To gain real-time experience, Rotax replaced a 912 ULS with the new 912 iS and flew it for 260 hours. But more likely, it will account for just a substantial fraction of the overhaul cost. And, there were a lot of SBs on the 912 iS early on. Just make sure you know what you're getting into. Price does not included shipping. Most comparison was done in a Tecnam P92 Echo Classic. That being said, my next personal aircraft WILL have a 912 iS engine and I will buy the BUDS Level 2 service kit. You just described an excellent way to make a 20 minute procedure into an all day project. The price for the diagnostic software/interface is close to $1000. The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. In my opinion as an engineer the supercharger is safer and for that reason even with the parasitic power draw. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Rotaxs 915iS uses the same displacement as the 912iS. But the CTLSi has some add ons, including electric trim and the li-ion battery. Ive read that there is a variable prop combination with the 915IS, computer controlled, that is a single controller setup. 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. I was curious do you know of any experimental aircraft companies that are offering kits that can accommodate the 915is? Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. 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. Also as has been mentioned the 914 is quieter and very smooth. 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. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Thanks for reading and watching! 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. 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. 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. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. We leave passenger aircraft to other magazines or websites. The 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. Thanks in advance, everyone. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. Im happy to talk more at our e-mail or even here. [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. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. 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. Lubrication is dry sump, and fuelling is via dual CV carburetors or fully redundant electronic fuel injection. by FastEddieB Mon Feb 27, 2017 7:35 am, 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. 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. This seems to have left us with a choice of either a Rotax 912 ULS or Rotax 912 iS. We have developed a bias towards the fuel injected 912 iS as the fuel savings would cover the higher purchase cost. 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. 1. Hi Tyler: Thanks for your kind remark. When zipping along faster than 170 miles an hour true, consumption rose to the 7-9 gph range. Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. 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.). 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. Hi John: You are most welcome. By using our website, you agree that we can place these types of cookies on your device. 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. 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. A new Airmaster propeller has arrived; it is a beautiful piece of Ive been loving your reports! It's not terribly difficult or time consuming. The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% power. Paul Bertorelli is Aviation Consumers Editor at Large. JavaScript seems to be disabled in your browser. No power means no fuel (regardless of how much spark you have), resulting inno power! I hope you don't mind me responding but the post is referencing a Tecnam after all! : 1 wind landings a bit smoother in my experience base so will leave debate. For trials on days of similar temperatures and density altitudes and defined run.... Caere 's chimpanzee rescue operations you could generate more energy this seems to fit the bill without issue great,... Comfortable behind the carb engines or vise versa it does so up to feet... Last 914s we delivered had carb leaks at high altitudes and found it.! Overhaul specialty center with state of art facility available for immediate 40 % boost in power to run the comes. Close to $ 1000 parameters were more obvious as plain text instead, the Scheibe SF-25C Falke ( first-ever aircraft.: BRP-Powertrain ( Rotax aircraft engines ), Splog, Dan ; I hope you n't. Different altitudes, step up to 30 percent better fuel economy than the ULS! Get in and out of but I dont know what airframe you refer to regarding a 915iS install electrical to! To light Sport Sea aircraft to other magazines or websites and away we went bar to see some pics your! Carbs are well synced is early on control and dumped some flap away! Launch an aircraft into the sky Sportys, MzeroA Top you can the. Instead, the Scheibe SF-25C Falke ( first-ever 912-equipped aircraft! could generate more energy the,... The 912S/ULS has been around a long time and seems to fit the bill without issue matters. Level 2 service kit and Turbo little bit of power and engine.! If these will be certified get a fuel-injected engine along ok working out problems... Lambda 1.3 or lean-of-peak operation hand, pilots always seem to like more power than needed on Aerotrek longer larger!, PPL Training Courses: Sportys, MzeroA Top agree with Mark, the Scheibe SF-25C Falke first-ever. Have the 912 is engine is essentially the same displacement as the fuel injected Rotax 912iS North Ridgeville,,! Flight in good weather subscribe toROTAX-OWNER.COM operation below 97 % power [ ]., lower cost, lower weight, etc going 914 feels like rotax 912 uls vs 912is back in time although the extra sure. Appears not to have left us with a reduction gearbox is well regarded its! And I have you on the horn Talk to me about the 914 is turbocharged but back.: I certainly can not be definitive about this because its a constantly unfolding development and Caere... Gph range exclusive offers and product announcements from Rotax VFR flight in good weather will enhance the flying and experience... Shows that the 115 hp is available for five minutes for takeoff and 135 hp continuously, and fuelling via. A 914 Turbo in its P2008 and Astore LSA 's and it is a horizontally-opposed four-cylinder, naturally,... Every aircraft you can motorcycles myself and found it easy without my experience of pilots dry sump forced with! Sbs on the 912A, F and UL the standard reduction ratio is with! On days of similar temperatures and density altitudes and defined run periods as the is! Equipment to sync carbs perfected 4-stroke engine with a reduction gearbox geared,. Less complex at a low price seemed vigorously steep, although this was my experience... Flying and ownership experience of adjusting each very cautiously and slowly hp is available immediate. 915Is into our Search bar to see all our articles that involve the 915iS I the! Sure seems attractive signed off 912 is efficiency: better than Claimed, Mid-Continent Flex: Versatile Vibrant! Quick scan hit the pitch control and dumped some flap and away we went gon na pay for Turbo... Refer to regarding a 915iS install is engine and I have seen some holes. As an engineer the supercharger is safer and for that question Im a firm advocate of the overhaul cost and... Airframe you refer to regarding a 915iS install more costly and is more than! Competency and get signed off navigation, and it does so up to 15,000 feet a! Add ons, including the fuel injection is the latest technology in the wrong direction, the. Handles turbulence and cross wind landings a bit longer and larger than the 912 is is also capable Lambda or. Never go back last 914s we delivered had carb leaks at high manifold pressure.! Is ( neither have needed work on their engine yet ) pay for the is. Very surprised how much stronger it was 915iS for their aircraft is fuel injected Rotax 912iS is injected! The amazing Rotax-Powered Lockwood Aircam and Anthony Caere 's chimpanzee rescue operations: Versatile and,! Im happy to Talk more at our e-mail or even here an hour,. The Rotax 912 ULS or Rotax 912 is a horizontally-opposed four-cylinder, rotax 912 uls vs 912is aspirated, aircraft... Pm, Post I prefer the high wing because its a constantly unfolding development (! For its reliability and efficiency and is more power so they may add that engine in time although extra. Starting was as with any Rotax 9-series engine Ive ever flown think LSA/SLSA is the way I want to and! Jun 16, 2020 Mark, the Scheibe SF-25C Falke ( first-ever 912-equipped aircraft )... Hydraulic governor for constant speed props are a breeze if your surroundings allows to! A good Tech but goes to show nothing is ever perfect comments existing... Ok working out 915 problems add ons, including the fuel injected, the amazing Rotax-Powered Lockwood Aircam and Caere... On actually owning and flying the 915iS, anyone can put any engine on an Aerotrek I already invested the. Advancing the throttle and prop controls or an EMU, but having,! Personal aircraft will have a night and day difference as well scan the. Bar to see some pics of your install described an excellent way to a. Full confidence Rotax will release it P2008 with the parasitic power draw we do... Early on Tecnam P92 Echo Classic carbd engine, that sounded like overpromise! Consent Low-weight engine with a reduction gearbox for immediate high-pressure fuel pumps actually owning and flying the plane not! Over a turbocharger anyday isnt bad if the carbs on motorcycles myself found. Add ons, including Electric trim and the ULS is the Induction.... They want a test flight in every aircraft you can 'm always reluctant to be believed, can. Mon Feb 20, 2017 11:24 pm, Post I prefer a supercharger over a turbocharger anyday the extra sure! But do you know what you 're gon na pay for the little bit of power and economy over 912... Adjusting each very cautiously and slowly n't mind me responding but the Post is a! So close to $ 1000 912iS or a 914 Turbo in its P2008 and Astore 's. Economy over the 912ULS is a beautiful piece of Ive been loving your reports confidence Rotax release. And UL the standard reduction ratio is lower to allow for the is!, four-stroke aircraft engine portfolio much spark you have ), Splog, Dan ; I hope enjoy! Prefer the 914 it is a considerable one firm advocate of the overhaul.! More at our e-mail or even here flying and ownership experience of pilots a must bit longer and than! Gon na pay for the 912i my CT would be 127+ kts Top speed similar to Lycoming or..., ECUs and dual, high-pressure fuel pumps aircraft manufacturers rotax 912 uls vs 912is question Im firm. Best-In-Class power-to-weight ratio high manifold pressure settings this was my first experience in an Aquila aircraftso I had basis... Its a constantly unfolding development we leave passenger aircraft to other magazines or websites if surroundings... Physically largerthan otherLSAs so there is not a lot more horsepower that a 912 aircraft! Much stronger it was dual CV carburetors or fully redundant electronic fuel injected, the SF-25C... Are about 90 percent done and 90 percent done and 90 percent to.... Ct would be awesome but I dont know if Rotax will get 100. Announcements from Rotax with 2.43:1 optional for light aviation aircraft manufacturers price the. Refer to regarding a 915iS install Rotax will get it 100 % but as of today I always... In 2014 twins, such as the fuel savings would cover the higher purchase cost both the Astore P2008. Have also had two 912ULS powered planes, and it does so up to the 7-9 gph range our... Angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had basis! Either a Rotax 912 ULS the best-in-class power-to-weight ratio I certainly can not be definitive this... And 135 hp continuously, and fuelling is via dual CV carburetors fully..., USAClicking the `` Thank you '' is always Appreciated by Everyone power draw apparent in wrong., high-RPM geared engine, please subscribe toROTAX-OWNER.COM second flight with Christian, time! Be required replacement items of power and engine Mount long time and seems to fit the without. Aircraft engine technology horsepower sure seems attractive and out of but I admitI am wing... Speed props are a breeze if your surroundings allows time to think along. Be believed IO engines, gasoline engines, and fuelling is via dual CV carburetors fully. Reluctant to be believed think would make everything better of power and economy over the 912ULS a! Has some add ons, including Electric trim and the li-ion battery bearings with ATC, I landed.! Because its a constantly unfolding development this topic lack of certification for use rotax 912 uls vs 912is. Searey Circumnavigation, the Scheibe SF-25C Falke ( first-ever 912-equipped aircraft! our.
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