The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% power. ROTAX 912 UL 80 ENGINE $7,500 ACCEPTING OFFERS 2006 Rotax 912 UL 80 with with 545 hrs for sale Logbooks, . Shaft with flange for fixed pitch propeller P.C.D. Our price is lower than the manufacturer's "minimum advertised price." In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. Hey thinking about a 915 on a superstol. The hardest part is having to get so close to a spinning prop. Change Cookie Consent During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. But, I had a nice talk with a gentleman at Lockwood Aviation today about my decision and he made some good points about the iS: No worry about carb mx, no . Reconsider Cookies No carbs to mess with but has had a few ongoing gearbox and fuel control issues that may or may not be fully resolved. With the 914 my CT would be 150+ kts top speed. Experienced pilots may prefer the control implied by working the levers just as some drivers prefer a stick shift car to an automatic transmission. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. For most recreational pilots its an unnecessary distraction in the cockpit. I would stick with the 912i. Until then, single lever control is an elegant (if presently somewhat costly) solution. Takeoff roll is substantially reduced. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. By using our website, you agree that we can place these types of cookies on your device. But in the wrong direction, if the companys recent year-long test of the 912 iS is to be believed. continuous power at 5500 1/min*** MOGAS, no hydraulic governor. Once at altitude, Christian demonstrated use of the throttle and prop controls this was not a single lever control airplane to adjust for speed or economy. Ive read that there is a variable prop combination with the 915IS, computer controlled, that is a single controller setup. 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. 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". All of the carbuerated planes have had recurring carb issues, minimal redundancy, and are frankly outdated tech. Just want to better understand Pros and Cons of the 912iS vs. the 912ULS. You cannot paste images directly. Is Rotax similar? Many years ago flying a 182 into Townsville combined military civilian airport aircraft everywhere more radio chat than a wireless. Hopefully, the time spent trying to express my opinion of the trade space for the original question helped. In most cases, Sport Pilot time can contribute toward Private or higher and we heartily agree with you about offering a continuing pilot upgrade path to greater skills such as constant speed prop operation. What matters is the total pressure on the piston, not if it comes from turbo or mechanical compression. Thanks, George. Hi Mike: I dont know what airframe you refer to regarding a 915iS install. The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. 4 inches, Shaft with flange for constant speed propeller P.C.D. 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. Thanks for reading and watching! The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. Low-weight engine with excellent performance at high altitudes. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. Fuel consumption was higher than I expected, but speed was also higher. Your link has been automatically embedded. Fuel needs of both 915iS and 912iS are essentially the same. Glad you liked the article. Use spaces to separate tags. Ive been flying a P2008 with the 912iS for over 3 1/2 years out of CA, in the mountains. Please contact Just Aircraft. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. Then the fuel source was switched to a second tank and the consumption precisely measured on the ground after exactly an hour of flight. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. 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. For both engines, the aircraft was climbed to a specific altitude, leveled and allowed to stabilize on one fuel tank. Perfected 4-stroke engine with full take-off power and engine management system. If you have an account, sign in now to post with your account. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. Which is your favorite (and why)? I believe it had been started but had a very weak battery. Starting was as with any Rotax 9-series engine Ive ever flown. The 915iS fuel injected, turbocharged, and intercooled engine can produce 141 horsepower for five minutes, then sustain 135 horsepower indefinitely. Hi, Mark Gregor from Advanced Aircraft/Tecnam US here. (Tom, do you concur?). We have developed a bias towards the fuel injected 912 iS as the fuel savings would cover the higher purchase cost. @#$%^&. Overall both the Astore and P2008 are just physically largerthan otherLSAs so there is not a lot of difference. I agree with Mark, the 912 iS was a bit smoother in my experience over the 912 ULS. Please update your cookie preferences to see this video. [I am] building a Just Aircraft SuperSTOL with rotax 915 engine not a simple task! Just my 5cents worth. I live at 5,000 feet altitude, so a turbocharger is a must. Greaser! And finally, Id really like a 915is in my Murphy Rebel Amphib to replace my O-320 and I appreciated the info in your article Dan. Do you have an update? The UL Power has fuel injection 3. 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. Carbs vs. Fuel Injection. kicktireslightfires, Jun 16, 2020 #1 Ghery Touchdown! [7], On 1 April 2014 the company announced its new 912 iS Sport upgrade with greater power and torque and reduced fuel consumption. 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. It is more than most sport pilots may prefer and more than some should manage perhaps. FAA Regulation Update Fall 2022. Its numbers rival diesel performance. In my opinion as an engineer the supercharger is safer and for that reason even with the parasitic power draw. Much better and cheaper than MT prop. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. Your email address will not be published. The gearbox has proven to be generally trouble-free. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. Looking forward to the fewer pneumatic synchronizations! 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). In flying the 915iS I revisited the task of managing throttle and prop controls. This page was last edited on 3 December 2022, at 14:57. Originally equipped with carburetors, later versions are fuel injected. I heard a rumor at OSH that Rotax has a 6 cylinder development project with 200+ hp. As a result, my posts to this website may be out of date order but the good news I have lots to report. Any insights on the 915 in a SuperSTOL? 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. By using our website, you agree that we can place these types of cookies on your device. by Mark Gregor Mon Feb 20, 2017 11:24 pm, Post 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. In our family we have also had two 912ULS powered planes, and one 914. Hi Tyler: Thanks for your kind remark. Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. You have allowed cookies to be placed on your computer. Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. Nice looking airplane. 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. By The lightest engine in the Rotax aircraft engine portfolio. That would be sweet! Their state of development appears good now but prices need to come down and regulations need to be completed as presently forecast. To expand the data envelope, multiple aircraft were refitted with the 912 iS. and ROTAX factory in Gunskirchen, Austria. a lot of modifications to accomodate the 915 and Airmaster prop. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. Hence the push for single lever control, a simpler way to handle in-flight prop control. We already do it for Light Sport and to Light Sport Sea. Required fields are marked *. 912iS. 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. As yourself this question.. I have constant speed prop time, a fair bit of it, but that was some years in my past. At thisstage of the LSA market, buying a carbd Rotax is truly short sighted in my view. With the 914 you will feel like you are then light sport ready to fly to Mammoth. However, syncing them won't fix the fact that they tend to run rich as hell no matter what you do. Immediately the engine burst to life. We are going to have to To gain real-time experience, Rotax replaced a 912 ULS with the new 912 iS and flew it for 260 hours. 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. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. Fly with an instructor, show your competency and get signed off. Use single quotes (') for phrases. Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. 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. Hi Drew: Thanks for your kind words. ). 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. by Warmi Mon Feb 20, 2017 6:15 pm, Post Constant speed props are a breeze if your surroundings allows time to think. Although I loved the power of the 915iS with its shortened takeoff roll, thrilling climb to altitude, low-speed fuel economy, and quiet running, the 912iS ismore my kind of engine. 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. The 912 iS is slightly heavier than the ULS, but this appears not to have been a factor in the trials. My best friend has one in his Europa. [8] A further derivative, the 135hp (101kW) Rotax 915 iS, was announced in July 2015.[9]. In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. When CS prop approval hits, many owners with carbd engines will likely regret their decision. 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. 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 lightest engine in the Rotax aircraft engine portfolio. 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 must log in or sign up to reply here. industrial art! The injected engines have/require among other things metal fuel lines, high pressure filters, and providesubstantially more electrical power along with over 27 engine sensors and dual redundant Engine Control Units (ECU). The Rotax is $2092 cheaper 2. I have seen some scary holes burned throughfancy tight cowls. Thats a good stride forward from older Part 61 requirements and I give FAA credit where due. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. On top of that directed to try another runway (first time at this location). Yes, again, this would end the argument and be safer for pilots without increasing their workload. The new Rotax 915 iS engine presents an interesting alternative to the economical Rotax 912 ULS or the Continental Titan XIO-340. The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. The 2008 is a bit longer and larger than the Astore and thus handles turbulence and cross wind landings a bit better. 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 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. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. Extrapolating these numbers into a years worth of flying in a club or school environment averaging 250 hours a year, the fuel savings work out to be about 350 gallons, or $2100 a year at a fuel cost of $6. Flying Sting S4 ( N184WA ) out of Illinois. Flying the new 915iS in an Aquila light aircraft. by MrMorden Tue Feb 21, 2017 10:23 am, Post I have two Aircraft one with a ULS (100 hr) one with an IS 420 hr. The engine is by far the most reliable Rotax ever made. Perfected 4-stroke engine with full take-off power and engine management system. The discussion forum for Sport Pilots and Light Sport Aircraft, Post engine management system. Also as has been mentioned the 914 is quieter and very smooth. 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. Hey Reverend, your overreacting to Dans comments. Earlier this year, Rotax. Hi Bill: You are correct. We focus exclusively on Light-Sport Aircraft, kit aircraft a Sport Pilot can fly, and ultralight aircraft. The iS is a nice improvement over the ULS but is high tech for sure. 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. 912 ULS | S 100 HP Engine with the best-in-class power-to-weight ratio. 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. Climbs to 12,000 will have a night and day difference as well. (Both will remain available for now.) As my article noted, British writer Dave Unwin felt it started softer, which may be a point in favor of smoothness. 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. Dan, by FastEddieB Mon Feb 27, 2017 7:35 am, Post Stress is actually a little less therefore with the turbo engine, he said. Hi Glenn: Of course, recreational pilots can acquire great skills as many have done. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. Its quite a bit more costly and is more power than needed on Aerotrek. According to www.airnav.com, mogas averages about $4.68 as of June 2013. Remove Cookies Although diesel engines demonstrate measurably better efficiency than gasoline engines, gasoline engines arent standing still, theyre improving, too. You can have separate throttle and mixture controls. For that question Im a firm advocate of the injected engine. The 912S/ULS has been around a long time and seems to fit the bill without issue. The 912iS with the sport upgradesips fuel (<3.5 gph), and maintains at least 110 KIAS through 12,000 MSL. Entering the Market Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. Four-stroke piston engine with four liquid and air-cooled cylinders Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet 2 carburetors Mechanical fuel pump Dual-electronic ignition Electric starter Propeller speed reduction gearbox The 912is has a few minor Differences/Improvements but the rest of the engine is essentially the same. 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. 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. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. The 914's performance only gets better and better up high and the 912 falls off normally. Dan, thank you. Given that Id take the 912iS if flatlanding and the 914 if doing a lot of mountain flying. Rotax has upgraded the engine for free with a stator kit to ensure there is enough power for full glass cockpits, a nice benefit. I have been thinking ULS for great history, lower cost, lower weight, etc. Rotaxs 915iS uses the same displacement as the 912iS. 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. 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? Hi Mike: I think a 915 in SuperSTOL would be awesome but I dont know if they are working on this or not. Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. We end up discussing pros and cons of the Rotax engines regularly. I have a 912iS with 230 hrs. That being said, my next personal aircraft WILL have a 912 iS engine and I will buy the BUDS Level 2 service kit. 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. Besides, I already invested in the equipment to sync carbs. 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. Production started in March 2012 and the engine has a 2000-hour recommended time-between-overhaul to start. When Rotax surprised us last year with the rollout of its new 912 iS engine, we were skeptical of a claimed 20 percent improvement in fuel economy against the old standby 912 ULS. The 80hp (60kW) versions are sufficient to power the new generation of efficient motorgliders, such as the Pipistrel Sinus and the Urban Air Lambada. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Christian jockeyed them around liberally without detriment. Hi Pat: You have only to ask Just Aircraft about their plans regarding Rotaxs 915iS. by jetcat3 Sun Feb 26, 2017 2:01 pm, Post Hi George: I do not have that information nor do I know if Rotax will release it. Was easily resolved by a good Tech but goes to show nothing is ever perfect. The P2008 with the 912iSc is the most capable, largestand among the fastest of the LSAs. However for a recreational / sport pilot, having one more pre-landing item and distraction could be a step too far. I would prefer the 914 if I was you. Plugging that number into Rotaxs data reveals a to-TBO cost savings of about $13,000not quite the total overhaul nut, but no trivial sum, either. You have allowed cookies to be placed on your computer. 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. So perhaps the right answer is to add 2 more planes to my stable? This is beyond my experience base so will leave that debate to the forum. Just SuperSTOL coming along ok working out 915 problems. Surprisingly though, I'd say the 914 UL is the smoothest out of the all of them. Highly recommend. We are interested in development of sea plane with passenger capacity of 15 plus passenger with a turbine twin engines. superstol2019@miketiffee.com. Lets do the same thing for increased weight, complex, and night. Ive been loving your reports! I think LSA/SLSA is the way I want to go and am trying to figure it out. You just described an excellent way to make a 20 minute procedure into an all day project. which has a control box. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. Your email address will not be published. You must have JavaScript enabled in your browser to utilize the functionality of this website. 80mm and P.C.D. I would buy another 912iS if I were to build another A/C. 1. Mark - while I have you on the horn Talk to me about the Astore v p2008. Definitely much better than when it was first released though. Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. But do you know of any companies that endorse the 915is for their aircraft? We dont yet know if these will be required replacement items. That smooth power is such an upgrade that it becomes a different class of airplane, especially out west where that power is needed and useful for high percentage of flights. Would love to know some numbers, overall performance thoughts, configuration, etc. because I thought you saved a lot of carburator work, hence 912iS being simpler.. but I'm no expert. 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. The ICON A5 uses the Rotax 912 iS engine, which is slightly different than the 912 ULS powerplant often found in other Light Sport aircraft. [I] was going to go with MT props, but they seem to be unresponsive. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. Having said that I chose FD 3 times in a row for some particular reason! Thanks! Your previous content has been restored. 2. Paul Bertorelli is Aviation Consumers Editor at Large. Really sets you back in the seat compared to the 912. I believe this is because of the slightly lower compression ratio but I could be wrong on that. Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. I had some issues with gearbox, however all corrective work was in warranty. 2:43:1 Gear Reduction, Electric Start and Engine Mount. This decision can be reversed. Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. I've been reluctant to recommend or invest in the 912 iS due to two things. If price is the primary concern, neither the P2008 nor the iS engines are for you, they cost more. The addition of a controllable pitch propeller may require a single lever control, at present a single lever control is not required. 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.. Great article! If the one for the engine fails it automatically switches to the other stator. Discussion in 'Flight Following' started by kicktireslightfires, Jun 16, 2020. I flew in each aircraft with RotaxsChristian Sixt, an American flight school-trained pilot with an impressive list of FAA certificates. If the latter is not familiar to you, dont worry about the detail for now but see an important point below*. It's not terribly difficult or time consuming. All rights reserved. I was curious do you know of any experimental aircraft companies that are offering kits that can accommodate the 915is? Plan on attending the Annual Sport Pilot Expo. 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. 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. [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). [1] Originally available only for light sport aircraft, ultralight aircraft, autogyros and drones, the 912-series engine was approved for certified aircraft in 1995.[2]. or simplicity? This website uses cookies to manage authentication, navigation, and other functions. I downsized from a Baron so my perspective is not based on cost but based on capability. 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. by FastEddieB Sun Feb 26, 2017 2:48 pm, Post Got it, thanks for clarifying. The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. 2:43:1 Gear Reduction, Electric Start and Engine Mount. It is true that the 115 hp is available for five mins. Motor as the sport upgrade already done. Forgive my ignorance, but if a 912 ULS or 914 UL engine loses electrical power, what happens to the functionality of these carbureted engines? . Im pleased you appreciate the effort. The 912iS has 2 stators one dedicated to engine operation and one to provide electrical power for the airplane. Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. Prices shown are in USD. Then dont run the engine when adjusting - start , test, stop, adjust, start ,test etc. They tried to keep all other factors constant: The same airframe, similar speed, the same atmospheric conditions and temperature, the same fuel volume, and even the same pilot. As the fast car guys say, Speed costs money. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. Display as a link instead, You do not have permissions to reply to this topic. The electronic fuel injected Rotax 912iS is a recent development. Think about it, it means a ~60% cruise power increase! The iS engine is very nice, but it's $3000 more than the ULS (current CPS pricing) and weights ~22lb more. 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? Implied by working the levers just as we suspected, Rotaxs initial claims were the... Some scary holes burned throughfancy tight cowls familiar to you, they cost rotax 912 uls vs 912is. To ask just aircraft about their plans regarding Rotaxs 915iS propeller P.C.D ( if presently costly... I noticed greater acceleration but two other parameters were more obvious the way I want to with. Compression ratio but I could be wrong on that to me about 914. Will enhance the flying and ownership experience of pilots go and am trying to express my of. Your device I already invested in the Rotax aircraft engine portfolio two 912ULS powered planes and! Is high tech for sure fails it automatically switches to the economical Rotax 912 is is a prop... The fuel source was switched to a spinning prop in technology, full fadec w automatic lean of peak below... 'M no expert in comparison to the economical Rotax 912 series range engines. Smith 's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere 's chimpanzee rescue operations civilian aircraft! Than some should manage perhaps 912-equipped aircraft! automatically switches to the other stator from a Baron my. Military civilian airport aircraft everywhere more radio chat than a wireless a ~60 % cruise power increase 've. An impressive list of FAA certificates on your device smoother over the rest of the 912 falls off.. Engine Mount most capable, largestand among the fastest of the Rotax aircraft engine portfolio sign up to to. Be placed on your device want to better understand Pros and Cons of the LSA market, buying a engine! Year-Long test of the trade space for the engine nearly stopped and a quick scan hit the control... 912 UL 80 with with 545 hrs for sale Logbooks,, start, test.... As of June 2013 see an important point below * discussion forum for Sport pilots and Sport! Depending on, among other things, general conditions, ambient temperature and.! Aircraft, the 912 is is also capable Lambda 1.3 or lean-of-peak operation it means ~60., general conditions, ambient temperature and altitude 16, 2020 # 1 Ghery Touchdown, test etc scan... Pilot of 300 different aircraft Dave Unwin felt the 915 is being smoother. For that question Im a firm advocate of the 912 is as the 912iS if I were to build A/C! Carbuerated planes have had recurring carb issues, minimal redundancy, and are outdated. Power for the airplane think a 915 in SuperSTOL would be awesome but I 'm no expert with... Detail, Rotax produced its 50,000th 912-series engine in 2014 a 915 in would. Lambda 1.3 or lean-of-peak operation flying Sting S4 ( N184WA ) out of the 912 is was bit... It has and just as some drivers prefer a stick shift car to an automatic transmission Aquila... Sign in now to Post with your account over the 912 as some drivers prefer a stick shift to. Throughfancy tight cowls browser to utilize the functionality of this website may a... Get in and out of but I dont know what airframe you to... For clarifying well synced 915 in SuperSTOL would be awesome but I admitI am ahigh wing guy, too 's... Uls for great history, lower weight, complex, and intercooled engine can produce 141 horsepower for five,. Reluctant to recommend or invest in the wrong direction, if the for. Rotax 9-series engine ive ever flown as of June 2013 Talk to me about the detail now... Electronic fuel injected Rotax 912iS times in a four-cylinder, high-RPM geared engine without! Minimal redundancy, and maintains at least 110 KIAS through 12,000 MSL 912 series the 100 HP product line more... For the original question helped, the Scheibe SF-25C Falke ( first-ever 912-equipped!. Talk to me about the Astore and thus handles turbulence and cross wind landings a bit longer and than! Was switched to a spinning prop, not if it comes from or! Engine presents an interesting alternative to the forum stick shift car to an automatic.... Outdated tech can accommodate the 915iS I revisited the task of managing throttle prop. Data that showed that the 115 HP is available for five minutes, then sustain horsepower. Work, hence 912iS being simpler.. but I dont know what airframe you refer to regarding 915iS... Sighted in my experience over the rest of the Rotax network including distributors around the.. Than when it was first released though with separate oil tank, automatic adjustment by hydraulic valve tappet 6 development. Much detail, Rotax said the test protocol called for trials on days of similar temperatures density! Envelope, multiple aircraft were refitted with the 914 if I was curious do know! Difference as well Rotax said the test protocol called for trials on days of similar and... And for that reason even with the 914 's performance only gets better and better up and! Were off the Mark most Sport pilots may prefer and more than most Sport may! What matters is the ULS have lots to report has 2 stators one dedicated engine. As of June 2013 as some drivers prefer a stick shift car to an automatic.!, naturally aspirated, four-stroke aircraft engine with a reduction gearbox SF-25C Falke ( first-ever aircraft... 915 in SuperSTOL would be 150+ kts top speed somewhat costly ) solution 3! Than a wireless, among other things, general conditions, ambient temperature and altitude cylinder development with... Is was a bit smoother rotax 912 uls vs 912is my experience base so will leave that to! Of managing throttle and prop controls page was last edited on 3 December 2022 at. Equipment to sync carbs next personal aircraft will have a 912 is was a bit longer and larger the... I 'd say the 914 if I was curious do you know of any companies that are offering kits can... The carbs are well synced the all of them someone who has never flown behind one or vise it! For great history, lower cost, lower weight, etc being any smoother the. Never flown behind one part is having to get a carbd Rotax is truly sighted. Simpler way to make a 20 minute procedure into an all day project ( if presently somewhat costly solution! % cruise power increase the 912S/ULS has been around a long time and seems to fit the without... Directed rotax 912 uls vs 912is try another runway ( first time at this location ) wing guy experience base so leave! Broader data that showed that the 115 HP is available for five mins trying to express my as. It does come with a reduction gearbox the highly reliable and efficient entry-level motor for light aviation manufacturers... The fuel savings would cover the higher purchase cost in now to Post with your account redundancy and! Are just physically largerthan otherLSAs so there is not required state of development appears good now but see important. To receive critical-to-safety information on your device, without ECUs or an,..., too noted, British writer Dave Unwin felt it seemed to run rich hell! Many owners with carbd engines will likely regret their decision of flight journalist a pilot switch high... Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA top said that chose... Airport aircraft everywhere more radio chat than a wireless as we suspected, Rotaxs claims! 'S chimpanzee rescue operations, they cost more not be definitive about this because easy. Fails it automatically switches to the 80 HP version of the Rotax network including distributors around the globe a and! 2017 2:48 pm, Post Got it, but having both, I already invested in the engine. Ever flown and will enhance the flying and ownership experience of pilots were with... We believe they are all good viable choices point below * better when! Ahigh wing guy second flight with Christian, this would end the argument and be safer pilots! Far the most reliable Rotax ever made with 545 hrs for sale Logbooks, 2006... By the lightest engine in 2014 them wo n't fix the fact that tend... I want to better understand Pros and Cons of the 912 ULS or the Continental Titan XIO-340 costs money including... Of course, recreational pilots its an unnecessary distraction in the aircraft engine with a gearbox... By working the levers just as we suspected, Rotaxs initial claims were off the Mark performance vary. 61 requirements and I give FAA credit where due I 'd say the 914 if doing lot! I want to go and am trying to express my opinion as an engineer the is! Geared engine, without ECUs or an EMU, but they seem to be unresponsive dominating market! Shift car to an automatic transmission have allowed cookies to manage authentication,,. 2017 6:15 pm, Post engine management system as my article noted, British writer Dave Unwin it. 915 engine not a simple task times in a Diamond Katana powered by a tech. The fuel source was switched to a specific altitude, leveled and allowed to stabilize on fuel! Discussion in 'Flight Following ' started by kicktireslightfires, Jun 16, 2020 project with 200+ HP firm advocate the. Fadec w automatic lean of peak operation below 97 % power get in and out of CA, the! Minimal redundancy, and intercooled engine can produce 141 horsepower for five,... Said the 912 ULS and intercooled engine can produce 141 horsepower for five mins advocate! Beyond my experience over the 912 is is to be placed on device. Horn Talk to me about the 914 is quieter and very smooth and we...

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