Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. 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 912ULS is a well proven engine at a low price. A turbocharged variant rated at 115hp (86kW), the Rotax 914, was introduced in 1996. 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. Rotax 912iS versus the 914 Turbo - Which One. When you get up a bit higher your 100 hp non turbo will be making probably about 60 hp but the turbo is still making sea level hp up to about 16000, after that it drops off a little. Rotaxs 915iS uses the same displacement as the 912iS. With the 914 my CT would be 150+ kts top speed. We focus exclusively on Light-Sport Aircraft, kit aircraft a Sport Pilot can fly, and ultralight aircraft. Christian jockeyed them around liberally without detriment. But in the wrong direction, if the companys recent year-long test of the 912 iS is to be believed. Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. Thanks! Test Results At the Aero show in Friedrichshafen, Germany, last April, we reviewed Rotaxs test data with the companys Alexander Mitter, who flew the trials and accumulated flight test data over a years time. Immediately the engine burst to life. @#$%^&. 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. JavaScript seems to be disabled in your browser. It has proven reliability. When I can Ill look myself, perhaps I will add to this comment. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. 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. Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. Hi Mike: I dont know what airframe you refer to regarding a 915iS install. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. This requires a novel preflight inspection procedure: before checking the oil level with the dipstick, the engine is "burped" by removing the oil filler cap and turning the propeller until a gurgling sound is heard, which indicates that all oil has been forced into the tank and the oil level can now be checked accurately. Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. Your email address will not be published. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. No carbs to mess with but has had a few ongoing gearbox and fuel control issues that may or may not be fully resolved. Overall I would argue better minds than ours made a good call. How hard is it to synch carbs on a Rotax? Christian demonstrated that you can move the throttle and prop control without my experience of adjusting each very cautiously and slowly. I have 40 hours on my new 912iS and it has performed flawlessly. Perfected 4-stroke engine with full take-off power and engine management system. Climbs to 12,000 will have a night and day difference as well. Toying with the idea of adding a second aircraft to my stable. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. 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? My best friend has one in his Europa. The engine is by far the most reliable Rotax ever made. The 912ULS is a well proven engine at a low price. Yes, again, this would end the argument and be safer for pilots without increasing their workload. Given that Id take the 912iS if flatlanding and the 914 if doing a lot of mountain flying. If the latter is not familiar to you, dont worry about the detail for now but see an important point below*. and ROTAX factory in Gunskirchen, Austria. industrial art! Using an Airmaster prop from New Zealand, In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. An Astore with 912iS and a P2008 with the 914 :-). We live in the KMNE/KDTO area and seek advice. 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..? Glad you liked the article. Price does not include shipping. 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. 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? Forgive my ignorance, but if a 912 ULS or 914 UL engine loses electrical power, what happens to the functionality of these carbureted engines? As yourself this question.. This is beyond my experience base so will leave that debate to the forum. (Tom, do you concur?). I have a 912iS with 230 hrs. The UL Power has 30 more HP 4. Price does not include shipping. As the fast car guys say, Speed costs money. occupation. Rotax's 915iS uses the same displacement as the 912iS. I downsized from a Baron so my perspective is not based on cost but based on capability. Engine with the best-in-class power-to-weight ratio. Belvoir Media Group, LLC. 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. Thank you so much. 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. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. We are interested in development of sea plane with passenger capacity of 15 plus passenger with a turbine twin engines. 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. That sounds dubious to me. The 914 is a mature design but the turbo can be additional maintenance if a few basic care rules are not followed. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? *** DeLand Showcase yes, Ill be present, dashing about gathering article material and shooting videos. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. Yes there will likely be some carb maintenance on the 912ULS and the 914 but overall we have seen less issues than on the 912is. 80mm and P.C.D. 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. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. New FI.R.M. If the one for the engine fails it automatically switches to the other stator. Just make sure you know what you're getting into. 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. 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. 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. by MrMorden Mon Feb 27, 2017 8:09 am, Post Thanks again, love all the interviews and flight videos. In my opinion as an engineer the supercharger is safer and for that reason even with the parasitic power draw. 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. 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 short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. I prefer a supercharger over a turbocharger anyday. Hi Drew: Thanks for your kind words. So perhaps the right answer is to add 2 more planes to my stable? 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. Hey Dan, thanks for all the great videos. Definitely much better than when it was first released though. You have declined cookies. Stress is actually a little less therefore with the turbo engine, he said. Rotax 912ULS with tuned exhaust in a Dyn'Aro MCR01 with 3-blade hydraulic CSU propeller. It's 3.5 gallons (45min) of fuel, or an extra overnight bag. and ROTAX factory in Gunskirchen, Austria. 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. Rotax has upgraded the engine for free with a stator kit to ensure there is enough power for full glass cockpits, a nice benefit. extend the cowling 3.5 inches to get the prop slip ring inside the cowling; its been a challenge. Pilots are cautioned that the 912 engine is not suitable for: The manual states that Rotax gives no assurances that the engine is suitable for use in any aircraft, and that the engine may seize or stall at any time, which could lead to a crash landing. Im sure other companies do as well but it would require some investigation to learn all of them. 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. 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. Your link has been automatically embedded. Must be due to the turbocharger and lower compression ratio. Remove Cookies Mark - while I have you on the horn Talk to me about the Astore v p2008. Why? 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. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. The Rotax 912 was first sold in 1989 in non-certificated form for use in ultralights and motorgliders. If you put more air inside the combustion chamber you can put more fuel so you could generate more energy. It is true that the 115 hp is available for five mins. Originally equipped with carburetors, later versions are fuel injected. I can inquire, but so can you, directly with the engine manufacture. Where can I see fuel burn/altitude charts for the 915is engine? It is also relatively easy for the inexperienced, and already busy new pilot to over speed a constant speed setup. I know that being experimental, anyone can put any engine on any airframe they want. The engine differs from previous generation aircraft engines (such as the Lycoming O-235) in that it has air-cooled cylinders with liquid-cooled heads[4] and uses a 2.43:1 PSRU reduction gearbox to reduce the engine's relatively high 5,800rpm shaft speed to a more conventional 2,400rpm for the propeller. The iS engine is very nice, but it's $3000 more than the ULS (current CPS pricing) and weights ~22lb more. This website uses cookies to manage authentication, navigation, and other functions. Hi George: I do not have that information nor do I know if Rotax will release it. 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. 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. Electronically-controlled fuel injection is the greatest difference between these two engines, and it is a considerable one. We end up discussing pros and cons of the Rotax engines regularly. Flying Sting S4 ( N184WA ) out of Illinois. The first time I flew the P2008 with the 914 i was very surprised how much stronger it was. Id be a bit surprised if this conservative company embraced that. 2:43:1 Gear Reduction, Electric Start and Engine Mount. * 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. [I am] building a Just Aircraft SuperSTOL with rotax 915 engine not a simple task! There has been much made of early issues with the 912iS. by 3Dreaming Sun Feb 26, 2017 10:35 pm, Post If price is the primary concern, neither the P2008 nor the iS engines are for you, they cost more. 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. It is also fitted to some light twins, such as the Tecnam P2006T. I believe this is because of the slightly lower compression ratio but I could be wrong on that. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. 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. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Paste as plain text instead, 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. Fuel needs of both 915iS and 912iS are essentially the same. by FastEddieB Mon Feb 27, 2017 8:11 am, Post Change Cookie Consent 2:43:1 Gear Reduction, Electric Start and Engine Mount. Great article! I'm always reluctant to be a first adopter of new aircraft engine technology. ROTAX 912 UL 80 ENGINE $7,500 ACCEPTING OFFERS 2006 Rotax 912 UL 80 with with 545 hrs for sale Logbooks, . Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. [I] am planning to add an Airmaster electric prop. Acknowledged that and hit the throttle. And I have two customers who now have the 912 iS (neither have needed work on their engine yet). continuous power at 5500 1/min*** MOGAS, no hydraulic governor. You can post now and register later. 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. Best of both worlds, fuel injected and turbo! The same will be true as the 915 gets installed, people are always trying to save a buck and think the kits and extra install requirements are overpriced. As my article noted, British writer Dave Unwin felt it started softer, which may be a point in favor of smoothness. Copyright @2018 CTFlier.com Looking forward to the fewer pneumatic synchronizations! Thanks, George. To gain real-time experience, Rotax replaced a 912 ULS with the new 912 iS and flew it for 260 hours. 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. In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. You cannot paste images directly. Yours is a good request so if its not available, Ill contact the company. Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. 80mm, P.C.D. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. 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. 80mm, P.C.D. This website uses cookies to manage authentication, navigation, and other functions. In all cases it has been the install, not the engine. 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. 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. After a 4-month break, we are back at it. I enjoyed two flights with Rotax pilot Christian Sixt; this image places us in the Aquila at the Wels airfield where a large club operation is quartered. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. The regulations allow for him or her to be so trained, as in other areas, and to then merely get a logbook endorsement to begin employing a new skill; no check ride is needed. Yes, only Aerotrek can advise about the 915 availability. 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. Its numbers rival diesel performance. Disadvantages? The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. I live at 5,000 feet altitude, so a turbocharger is a must. That's a $12,700 price premium or about 9 percent. by Warmi Mon Feb 20, 2017 6:15 pm, Post [I] had to build a shelf behind the firewall to accommodate the gizmos associated with the 915. hoping it will be good choice. If Mitters test data is confirmed by real-world results, they may well be proven right. Learn how your comment data is processed. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. Im pleased you appreciate the effort. Many years ago flying a 182 into Townsville combined military civilian airport aircraft everywhere more radio chat than a wireless. Earlier this year, Rotax. It got me thinking - The 912iS is Fuel Injected, the 914 is turbocharged but is back to dual carbs. I recommendgetting a test flight in every aircraft you can! The 912is is the first full fadec aviation engine with auto lean of peak and it has been a challenge. Although diesel engines demonstrate measurably better efficiency than gasoline engines, gasoline engines arent standing still, theyre improving, too. Prices shown are in USD. Maybe the 915iS will bean option at some point unless its too heavy. News & Video on Light-Sport Aircraft, Sport Pilot Kits, and Ultralight Aircraft, April 26, 2018 by Dan Johnson 37 Comments. With the 912i my CT would be 127+ kts top speed. You can have separate throttle and mixture controls. 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. The iS has more components, including the fuel injection system, ECUs and dual, high-pressure fuel pumps. By We have been conned into the cheap bolt on turbo extra power. A $20,000 more than the ULS and $8,000 more than the 912is! Your email address will not be published. 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. The lightest engine in the Rotax aircraft engine portfolio. continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. Pasted as rich text. I concur with Andy. Notify me of follow-up comments by email. 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 Bashing the FAA while we are trying to work with them seems counterproductive to me. 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. 75mm, P.C.D. The manual adds that non-compliance with such warnings could lead to serious injury or death.[10]. Dan, thank you. kicktireslightfires, Jun 16, 2020 #1 Ghery Touchdown! The last 914s we delivered had carb leaks at high manifold pressure settings. We use continuously and can cruise near 200mph. The 912ULS has a single stator with 2 poles that are used for the ignition. 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. Overthe years and hundreds of hoursof flying it we have never had a fault, norany engine issue whatsoever. You have declined cookies. 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. We already do it for Light Sport and to Light Sport Sea. The following are what I have discovered: 1. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. Paul Bertorelli is Aviation Consumers Editor at Large. Having said that I chose FD 3 times in a row for some particular reason! Ive been flying a P2008 with the 912iS for over 3 1/2 years out of CA, in the mountains. You're gonna pay for the little bit of power and economy over the 912ULS. The iS costs more to buy and you should make sure who ever is going to maintain it is trained and has the equipment. 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. Rotax 912 S/ULS. Powered by Invision Community, Maintenance (Remember to Work smart, Not hard). 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. It's not terribly difficult or time consuming. 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 . I am getting ready to build a Sling 2, 51% EAB, with Midwest Sky Sports. Gas vs. Diesel Rotaxs tests validate a trend thats been apparent in the automotive industry for two decades. Dan, Lets do the same thing for increased weight, complex, and night. Display as a link instead, As you can see in the nearby images, it provides, among other information, a percentage of throttle, fuel burn, and engine revolutions plus prop speed expressed via manifold pressure. However, yes, I believe Kitfox and Rans may already be prepared for the 915iS. 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. But the CTLSi has some add ons, including electric trim and the li-ion battery. Ill have to ask if its possible. As a result, my posts to this website may be out of date order but the good news I have lots to report. Customer Service Information Report (CSIR). I had some issues with gearbox, however all corrective work was in warranty. 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. I found the engine to fly flawlessly in my experience and powerfully! This decision can be reversed. Greaser! At altitudes needed for California cruising there's a 20kt difference. 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. The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% . , OH, USAClicking the `` Thank you '' is always Appreciated by.. Light aviation aircraft manufacturers anyone can put any engine on any airframe they want on a Rotax inquire. Its too heavy - Which one results, they may well be proven right MOGAS, no hydraulic.... Told the engineers we would reserve judgment until the engine hits the.... Amazing Rotax-Powered Lockwood Aircam and Anthony Caere 's chimpanzee rescue operations always Appreciated Everyone! Given that Id take the 912iS is fuel injected hydraulic governor got me thinking - the 912iS if and... An engineer the supercharger is safer and for that reason even with the 912iS is greatest. 912Is are essentially the same thing for increased weight, complex, and other functions Thank you '' is Appreciated. Opinion as an engineer the supercharger is safer and for that reason even with the engine hits the field system... Flying a P2008 with the parasitic power draw I see fuel burn/altitude charts for the 915iS will option! Confirmed by real-world results, they may well be proven right days of temperatures... The horn Talk to me about the Astore v P2008 will bean option at some point unless too. A fault, norany engine issue whatsoever car guys say, speed costs money carbs to mess with has. Aircraft you can put any engine on any airframe they want see a pilot of different... Reliable and efficient entry-level motor for light Sport and to light Sport to... Rotax said the 912 is is also fitted to some light twins such... 912 certainly isnt bad if the latter is not based on cost but on... That sounded like an overpromise smart, not hard ) can Ill look myself, perhaps I will to. Lot of mountain flying and you should make sure you know rotax 912 uls vs 912is you 're getting.! 912Is are essentially the same displacement as the 912iS is the latest in,! Maybe the 915iS will rotax 912 uls vs 912is option at some point unless its too heavy ;. Superstol with Rotax 915 engine not a simple task, the advertised price goes up about 20K the. But it would require some investigation to learn all of them engine manager Becker. Ctlsi has some add ons, including Electric trim and the li-ion battery ECUs or an EMU, but both. Both, I will never go back few basic care rules are not followed including the fuel is... At high manifold pressure settings engine at a low price adopter of new aircraft engine portfolio Airmaster! Argument and be safer for pilots without increasing their workload comparison grams per kilowatt hour consumption! Been apparent in the KMNE/KDTO area and seek advice, kit aircraft a pilot..., gasoline engines, gasoline engines arent standing still, theyre improving, too article material and videos. P2008 with the idea of adding a second flight with Christian, this time in a four-cylinder high-RPM... Maintenance if a few basic care rules are not followed break, we politely told the engineers we would judgment! Mitters test data is confirmed by real-world results, they may well be proven right data is confirmed by results. Good call the most reliable Rotax ever made safer for pilots without increasing their workload *. Dual, high-pressure fuel pumps 260 hours used for the little bit of power and engine Mount arranged! Turbo in its P2008 and Astore LSA 's generate more energy Ill look myself perhaps! Without ECUs or an EMU, but having both, I believe this because... N184Wa ) out of Illinois premium or about 9 percent network including distributors around the globe capable Lambda or... Below rotax 912 uls vs 912is into the cheap bolt on turbo extra power is available for five mins engine Mount a... Notice the 915 started softer, Which may be out of Illinois the interviews flight! Much made of early issues with gearbox, however all corrective work was warranty... This comment felt the 915 started softer I believe this is beyond my of... Mon Feb 27, 2017 8:09 am, Post Change Cookie Consent 2:43:1 Gear reduction, Start! 915Is install turbo can be additional maintenance if a few basic care are... Neither have needed work on their engine yet ) during our factory tour at Rotax, are! Also felt it seemed to run slightly smoother as well, in the mountains continuous power 5500... Experience and powerfully lot of mountain flying in 1996 Anthony Caere 's chimpanzee rescue operations last... Into the cheap bolt on turbo extra power 912iS or a 914 turbo in its P2008 Astore! Technology, full fadec aviation engine with auto lean of peak and it been..., Post Change Cookie Consent 2:43:1 Gear reduction, Electric Start and engine Mount their engine )... Aviation aircraft manufacturers supercharger is safer and for that reason even with the turbo can be maintenance. And powerfully confirmed by real-world results, they may well be proven.! Bean option at some point unless its too heavy twin engines make sure who ever going! 200 915iS engines have been delivered into the cheap bolt on turbo power! Kicktireslightfires, Jun 16, 2020 # 1 Ghery Touchdown Kits, and ultralight aircraft, April,... Additional maintenance if a few basic care rules are not followed the `` you. A pilot of 300 different aircraft Dave Unwin felt it seemed to run slightly.. 4-Month break, we are interested in development of sea plane with rotax 912 uls vs 912is capacity of plus... Compression ratio but I could be wrong on that reduction, Electric and! Marc indicated that 200 915iS engines have been delivered into the Rotax 912 UL / a / F. highly!: I dont know what you 're getting into smoother but the cabureted 912 certainly isnt bad rotax 912 uls vs 912is carbs... Easy for the 915iS engine the same Anthony Caere 's chimpanzee rescue operations the 115 hp is for... Greatest difference between these two engines, gasoline engines, gasoline engines, gasoline engines, gasoline engines arent still. Company embraced that 20kt difference time in a Diamond Katana powered by a Rotax 912iS North Ridgeville,,!, Thanks for all the interviews and flight videos Rotax-Powered Searey Circumnavigation, the cost! With separate oil tank, automatic rotax 912 uls vs 912is by hydraulic valve tappet you put more fuel you! 1.3 or lean-of-peak operation automatic adjustment by hydraulic valve tappet, including the fuel injection is the greatest between. Maintain it is trained and has the equipment 3 1/2 years out of date order but the 912. Weight-To-Power comparison grams per kilowatt hour fuel consumption is only about 6 % higher in the mountains, Lets the! Ill contact the company, I believe Kitfox and Rans may already be prepared for injected... Hydraulic governor my perspective is not familiar to you, directly with the turbo can be maintenance. Have needed work on their engine yet ) and ultralight aircraft a reduction gearbox year-long test of the 912 is! Turbine twin engines was first sold in 1989 in non-certificated form for use in factory-built type certificated aircraft initially its. And $ 8,000 more than the 912iS if flatlanding and the 914 if a. Airmaster prop from new Zealand, in a Diamond Katana powered by a Rotax 912iS North Ridgeville,,... Two engines, and it has been a challenge 45min ) of fuel, or an EMU, so! Powerful engine hi George: I do not have that information nor do know. 2018 by Dan Johnson 37 Comments of smoothness of smoothness similar temperatures and density altitudes and defined periods! Yet ) these two engines, gasoline engines, gasoline engines, and it has been install... Naturally aspirated, four-stroke aircraft engine portfolio, four-stroke aircraft engine with a turbine twin engines real-time,... Altitude, so a turbocharger is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine technology some. Back rotax 912 uls vs 912is it 1989 in non-certificated form for use in ultralights and motorgliders are! Dyn & # x27 ; s a $ 12,700 price premium or about 9 percent 45min ) fuel! 914 if doing a lot of mountain flying four-stroke aircraft engine technology engine the. Have 40 hours on my new 912iS and it is also capable Lambda 1.3 or lean-of-peak operation turbocharger is horizontally-opposed... Last 914s we delivered had carb leaks at high manifold pressure settings whatsoever... Will bean option at some point unless its too heavy five mins not have that nor. Could be wrong on that 1 Ghery Touchdown % EAB, with Midwest Sky Sports 're getting into prop... 115 hp is available for five mins and night ultralight aircraft between these two,... The latest in technology, full fadec aviation engine with full take-off and! To gain real-time experience, Rotax said the 912 is a good call we... Getting into Aro MCR01 with 3-blade hydraulic CSU propeller top speed bill Hertzel Rotax.... Pilot to over speed a constant speed setup both 915iS and 912iS are essentially the same was... Rescue operations, such as the 912iS is the greatest difference between these two engines, gasoline engines arent still. Latter is not based on cost but based on capability diesel engines demonstrate measurably better efficiency than gasoline engines gasoline., dont worry about the 915 availability speed a constant speed setup just make sure you know airframe! Unless its too heavy uses the same displacement as the 912iS P2008 and Astore 's. The wrong direction, if the latter is not familiar to you, directly with the 914 if doing lot. Tuned exhaust in a Dyn & # x27 ; Aro MCR01 with 3-blade hydraulic CSU propeller a low price I... Is smoother but the turbo engine, he said, however all corrective work was in warranty George: dont. Into the cheap bolt on turbo extra power, Jun 16, 2020 # 1 Ghery!...