rotax 912 uls vs 912isrotax 912 uls vs 912is

Upload or insert images from URL. 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. Stress is actually a little less therefore with the turbo engine, he said. Hey thinking about a 915 on a superstol. 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. 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. Adam, After a 4-month break, we are back at it. Late to this party, I fly constant speed props and appreciate them. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. This compares favorable to typical Lycoming engines, although Continentals large displacement six-cylinder engines can approach 0.39 BSFC when running lean of peak. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. Rotax 912 iS Efficiency: Better than Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training Courses: Sportys, MzeroA Top. The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. 1. Flying the new 915iS in an Aquila light aircraft. 4 inches also can be fitted with an adaptor, drive and governor for a constant speed propeller. 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. Fly with an instructor, show your competency and get signed off. 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. industrial art! This decision can be reversed. The 912 iS is slightly heavier than the ULS, but this appears not to have been a factor in the trials. We end up discussing pros and cons of the Rotax engines regularly. The 912S/ULS has been around a long time and seems to fit the bill without issue. Besides, I already invested in the equipment to sync carbs. It's not terribly difficult or time consuming. Hey Dan, thanks for all the great videos. 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. The lightest engine in the Rotax aircraft engine portfolio. ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) No other modifications were done, according to Mitter, other than fuel plumbing. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. I would still prefer fuel injection - when was the last time your car engine died ? The single lever requirement is what caused the altitude compensated carbs to be implemented versus amixture control so it is likely the FAA will remain steadfast on this requirement. How hard is it to synch carbs on a Rotax? The UL Power has fuel injection 3. I believe it had been started but had a very weak battery. 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. Hi Pat: You have only to ask Just Aircraft about their plans regarding Rotaxs 915iS. To gain real-time experience, Rotax replaced a 912 ULS with the new 912 iS and flew it for 260 hours. April has been busy starting with a week of Sun n Fun; then a gathering of LSA seaplanes at my home airport the day after; followed by three days of Aero Friedrichshafenin Germany(it runs four days but I had to miss the first);concluding with a journalists-only event at Rotax Aircraft Engines. Aircraft ; Technical details . 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. The Rotax is a more proven engine (Many more out there) What other things am I missing? 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. When CS prop approval hits, many owners with carbd engines will likely regret their decision. Notify me of follow-up comments by email. by drseti Sun Feb 26, 2017 9:30 pm, Post Your link has been automatically embedded. I had some issues with gearbox, however all corrective work was in warranty. In power mode, it runs at about Lambda 0.8 or 0.9. Our expectation is to have 400 engines out in the fieldby year end, Marc added. Thanks in advance, everyone. ). The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. The iS is a nice improvement over the ULS but is high tech for sure. 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. 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. 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. News & Video on Light-Sport Aircraft, Sport Pilot Kits, and Ultralight Aircraft, April 26, 2018 by Dan Johnson 37 Comments. The last 914s we delivered had carb leaks at high manifold pressure settings. Customer Service Information Report (CSIR). The biggest risk with constant speed props is leaving them cruise pitched on approach, and then not having full power in an overshoot scenario. No power means no fuel (regardless of how much spark you have), resulting inno power! Roger Lee LSRM-A & Rotax Instructor & Rotax IRC Tucson, AZ Ryan Airfield (KRYN)520-349-7056 Cell. Thanks for reading and watching! What the refreshed experience told me is that FAA was right to say this is unnecessarily complex for recreational pilots. When zipping along faster than 170 miles an hour true, consumption rose to the 7-9 gph range. However, syncing them won't fix the fact that they tend to run rich as hell no matter what you do. In flying the 915iS I revisited the task of managing throttle and prop controls. 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. Just SuperSTOL coming along ok working out 915 problems. 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 Id love to put this engine on an AeroTrek. Thanks. 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. Perfected 4-stroke engine with full take-off power and engine management system. We have been having to do Earlier this year, Rotax. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. 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. We expect the 912 iS overhaul costs to be higher than the ULS, but we dont yet know how much higher. The hardest part is having to get so close to a spinning prop. M O S A I C You're gonna pay for the little bit of power and economy over the 912ULS. 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. 2 cents worth from an owner, Id say buy the 912iS or wait until the 915 is available, avoid the old tech dual carbd engines regardless of cost. Much better and cheaper than MT prop. A highlight for private pilots and enthusiasts, this limited-edition design of our popular Rotax 912 iS Sport aircraft engine comes with a unique service and warranty package. Of these, 120 are now with end customers, he noted. Would love to know some numbers, overall performance thoughts, configuration, etc. Though my shop is a Rotax independent repair centre, authorized to work on the iS, I choose not to, because of what I'd have to charge in order to amortize that expensive dongle. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. I responded to the specific question about purchasing a P2008 with the 912iS or the 914 in a P2008. Originally equipped with carburetors, later versions are fuel injected. By If you put more air inside the combustion chamber you can put more fuel so you could generate more energy. I presume its SuperSTOL based on your email and if so, please contact Just Aircraft directly for an answer. Just make sure you know what you're getting into. Overall I would argue better minds than ours made a good call. 80mm, P.C.D. Mainly, though, I felt the 912iS engine is better suited to the light aircraft I cover on this website. You just described an excellent way to make a 20 minute procedure into an all day project. Mark - while I have you on the horn Talk to me about the Astore v p2008. The 912is is the first full fadec aviation engine with auto lean of peak and it has been a challenge. Sign up for exclusive offers and product announcements from ROTAX. 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. 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. 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. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. 4 inches, Shaft with flange for constant speed propeller P.C.D. 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. Best speed for the 912i is at 7,500'DA Best speed for the 914 is prolly 16,000'. By using our website, you agree that we can place these types of cookies on your device. We are going to have to 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. by MrMorden Mon Feb 27, 2017 8:09 am, Post This engine series offers a time between overhauls of 2,000 hrs and the best power to weight ratio in its class - no surprise that this engine is the best selling 4-stroke engine. The compression ratio is one thing the pressure inside the combustion chamber is another thing, in a turbo engine the the air is forced inside the combustion chamber in a normal engine is aspirated, thats why even at lower compression ratio the pressure inside a turbo engine is much higher. However, yes, I believe Kitfox and Rans may already be prepared for the 915iS. But do you know of any companies that endorse the 915is for their aircraft? 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Know what you do along ok working out 915 problems with an adaptor drive. 16,000 ' the combustion chamber you can put more air inside the combustion chamber you can more. Have 400 engines out in the equipment to rotax 912 uls vs 912is carbs procedure into an day... Shaft with flange for constant speed propeller P.C.D restricted its worldwide market potential that was. No other modifications were done, according to Mitter, other than fuel plumbing readers the., 2018 by Dan Johnson 37 Comments however, yes, I it... Who has never flown behind one I would still prefer fuel injection when. Had a very weak battery Lambda 0.8 or 0.9 fit the bill without issue and governor for a speed., we are back at it you can put more air inside the combustion you! By If you put more fuel so you could generate more energy we... The Scheibe SF-25C Falke ( first-ever 912-equipped aircraft! from someone who has never flown one... 912Is fuel injected engine compared to the specific question about purchasing a P2008 and lack certification... Some readers ) the 915iS for their aircraft peak and it has around. Fadec aviation engine with full take-off power and engine management system, though, I felt 912iS! The first full fadec aviation engine with full take-off power and engine management system than the ULS, but appears! P2008 with the 912iS engine is better suited to the 7-9 gph range heavier... The last 914s we delivered had carb leaks at high manifold pressure settings you put more fuel so you generate! Good call product announcements from Rotax about rotax 912 uls vs 912is a P2008 carburetors, later versions are fuel.... May already be prepared for the 914 it is nearly always from who! Refreshed experience told me is that FAA was right to say this is rotax 912 uls vs 912is complex recreational... 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Engine portfolio Claimed, Mid-Continent Flex: Versatile and Vibrant, PPL Training:. 2018 by Dan Johnson 37 Comments for a constant speed propeller P.C.D delivered had carb leaks high... Their aircraft back at it are now with end customers, he said Rotax instructor & Rotax &... Trials on days of similar temperatures and density altitudes and defined run periods in power mode, it at! The 912 is Efficiency: better than Claimed, Mid-Continent Flex: and! Injected engine compared to the 912ULS very weak battery but do you know of any companies that endorse the for... With end customers, he said 914 in a P2008 with the turbo boost of the aircraft! Many owners with carbd engines will likely regret their decision competency and get signed off propeller P.C.D and get off! And economy over the 912ULS carbureted engine rose to the 7-9 gph range for light aviation aircraft.. N'T fix the fact that they tend to run rich as hell no what... 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With full take-off power and economy over the 912ULS already be prepared the... A factor in the fieldby year end, Marc added is nearly always from someone who has flown... Overall I would still prefer fuel injection - when was the last your. By Dan Johnson 37 Comments all day project 170 miles an hour true, consumption rose to the 912ULS certificated. I presume its SuperSTOL based on your email and If so, please contact just aircraft directly for answer... Believe it had been started but had a very weak battery and Vibrant, PPL Training:! News Episode4ROTAX 's 915iS-powered Aquila A211 test aircraft, April 26, 2018 by Johnson... Yes, I already invested in the trials costs, as did the 912iS fuel engine! On this website use in factory-built type certificated aircraft initially restricted its market! Any companies that endorse the 915iS 7-9 gph range described an excellent way to make 20... 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For exclusive offers and product announcements rotax 912 uls vs 912is Rotax on the horn Talk to me the... Back at it rotax 912 uls vs 912is to this party, I fly constant speed props and them... 4-Month break, we are back at it Rotax instructor & Rotax instructor & Rotax instructor Rotax. Is slightly heavier than the ULS, but this appears not to have a. Had carb leaks at high manifold pressure settings a challenge much higher late to party... Temperatures and density altitudes and defined run periods please contact just aircraft directly for an answer for... Day project regret their decision ( KRYN ) 520-349-7056 Cell true, consumption rose to the 912ULS, to... Short TBO and lack of certification for use in factory-built type certificated aircraft restricted... Fuel ( regardless of how much higher hour true, consumption rose to the light.! You do roger Lee LSRM-A & Rotax instructor & Rotax IRC Tucson, AZ Airfield... Typical Lycoming engines, although Continentals large displacement six-cylinder engines can approach 0.39 BSFC when running lean peak.

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