Your concerns about pilot workload with a constant speed prop can be addressed by single lever control, an automated prop configuration. 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. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. . Learn how your comment data is processed. By using our website, you agree that we can place these types of cookies on your device. I hope you don't mind me responding but the post is referencing a Tecnam after all! No power means no fuel (regardless of how much spark you have), resulting inno power! At Aero 2013 in Friedrichshafen, Rotax's Alexander Mitter reported that side-by-side flight testing reveals that the new Rotax 912iS delivers much better fuel efficiency than the company. You cannot paste images directly. Hi Drew: Thanks for your kind words. 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). 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. It features liquid-cooled cylinder heads and air-cooled cylinders. After trying to get my bearings with ATC, I landed uneventfully. Yes, only Aerotrek can advise about the 915 availability. The 914 cruises at 35 inches manifold continuous. Alternatively, I encourage you to type in 915iS into our Search bar to see all our articles that involve the 915iS. 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. I have personally seen 912 motors with 3000 hours on them, never opened and running strong. Experienced pilots may prefer the control implied by working the levers just as some drivers prefer a stick shift car to an automatic transmission. An Astore with 912iS and a P2008 with the 914 :-). In power mode, it runs at about Lambda 0.8 or 0.9. Hi Tyler: Thanks for your kind remark. Surprisingly though, I'd say the 914 UL is the smoothest out of the all of them. We also are interested in engine overhaul specialty center with state of art facility available for immediate. Unless otherwise noted, these reviews carry product pricing from the time of the original review. The 914's performance only gets better and better up high and the 912 falls off normally. Please contact Just Aircraft. Overall I would argue better minds than ours made a good call. Turbo exhaust failure makes for a great blow torch. 912iS. In the world of Light-Sport Aircraft and European-style ultralights or microlights, Rotax has delivered a compact, optimized package. If you have an account, sign in now to post with your account. Copyright @2018 CTFlier.com At this setting the 914 is making a lot more horsepower that a 912. continuous power at 5500 1/min*** MOGAS, no hydraulic governor, Perfected 4-stroke engine with full take-off power and engine management system. 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. I'm an LSRM with a small LSA service/flight center in AZ. 1 2 Next Page 1 of 2 Adam Members 434 LocationFullerton (KFUL) Orange County CA Posted January 1, 2018 Happy New Year Everyone! Really sets you back in the seat compared to the 912. I do think that simpler aviation [engine] designs (i.e., no gearbox, no FADEC-type setups) will be a superior powerplant and cheaper to maintain in the field. 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. My best friend has one in his Europa. 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. Any insights on the 915 in a SuperSTOL? On a recent visit to Rotaxnear Wels, Austria, I was privileged to examine the immense Rotax engine factory and test facilities with executive Christian Mundigler. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. [I] was going to go with MT props, but they seem to be unresponsive. Low-weight engine with excellent performance at high altitudes. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? 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. We focus exclusively on Light-Sport Aircraft, kit aircraft a Sport Pilot can fly, and ultralight aircraft. But in the wrong direction, if the companys recent year-long test of the 912 iS is to be believed. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. 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. Time will tell. by FastEddieB Sun Feb 26, 2017 2:48 pm, Post We have been conned into the cheap bolt on turbo extra power. The difference between the 912is and the ULS is the Induction system. Annual sales total $6 billion (Canadian or U.S. $4.9 billion) generated in more than 130countries by a global workforce of more than 14,500 people. Im about to take the plunge! I am building a Zenith Cruzer and was pretty solid on the UL Power 350i until I ran across the issue with the pistons. There has been much made of early issues with the 912iS. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. Your email address will not be published. Originally equipped with carburetors, later versions are fuel injected. The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. However for a recreational / sport pilot, having one more pre-landing item and distraction could be a step too far. The gearbox has proven to be generally trouble-free. Mark - while I have you on the horn Talk to me about the Astore v p2008. You're gonna pay for the little bit of power and economy over the 912ULS. Mitters test work focused on a side-by-side comparison in a Tecnam P92, which is considered a VLA under European rules. At this setting the 914 is making a lot more horsepower that a 912. Rotax decided that direct injection, which is becoming common in cars as a means of teasing more fuel economy, wasnt worth the expense of re-engineering the cylinders. In 1999, the 912S / ULS were introduced;[3] enlarged to 1,352 cubic centimetres (82.5cuin) with a compression ratio of 10.8:1, yielding 100hp (75kW). Clear editor. Glad it was a VFR flight in good weather. Rotax-powered Sling aircraft from The Aircraft Factory, the AVMAP Navigation and engine monitoring system, and the Rotax powered Tucano Experimental and Light-Sport Aircraft. In a sharp comparison Rotax's 912 ULS makes the same horsepower using only one-third the displacement, 83 cubic inches. I like the 914 because it is smoother, quieter and substantially more powerful! I heard a rumor at OSH that Rotax has a 6 cylinder development project with 200+ hp. 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. SNEAK PREVIEW In less than 10 days, I will have an announcement regarding how one aircraft may zoom faster than any other LSA. 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. Looking forward to the fewer pneumatic synchronizations! The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. There was a crash of a Diamond Twinstar. Whats the alternator inspection interval for 912iS? Soon after advancing the throttle, I noticed greater acceleration but two other parameters were more obvious. In flying the 915iS I revisited the task of managing throttle and prop controls. 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. Hence the push for single lever control, a simpler way to handle in-flight prop control. Yet for those who yearn for more power or are building an aircraft of higher capabilities, the 915iS is going to be a welcome powerplant. For more than five decades, active and dedicated aircraft owners and pilots have turned to AVIATION CONSUMER to answer their most important buying questions. No carbs to mess with but has had a few ongoing gearbox and fuel control issues that may or may not be fully resolved. I believe Steve Henry is running one as well. 2. At altitudes needed for California cruising there's a 20kt difference. 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. Fly with an instructor, show your competency and get signed off. 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. Hi John: You are most welcome. 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. Mainly, though, I felt the 912iS engine is better suited to the light aircraft I cover on this website. All rights reserved. 4 inches also can be fitted with an adaptor, drive and governor for a constant speed propeller. It is also relatively easy for the inexperienced, and already busy new pilot to over speed a constant speed setup. Mitter said the test protocol called for trials on days of similar temperatures and density altitudes and defined run periods. New FI.R.M. Forgive my ignorance, but if a 912 ULS or 914 UL engine loses electrical power, what happens to the functionality of these carbureted engines? The 912 enjoys a much better power-to-weight ratio than familiar models such as Lycomings O-233. If the latter is not familiar to you, dont worry about the detail for now but see an important point below*. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. Acknowledged that and hit the throttle. 100mm, Shaft with flange for fixed pitch propeller, P.C.D. continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Engine with the best-in-class power-to-weight ratio. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. When I can Ill look myself, perhaps I will add to this comment. * 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. Im happy to talk more at our e-mail or even here. Filed Under: BRP-Powertrain (Rotax Aircraft Engines), Splog. Jason is the dealer over here in Alberta and is running one on his S6. Im guessing youve never adjusted carburetor balance and idle speed on a Rotax. I've owned one plane with a 912iS and one with a 912ULS. 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. Is Rotax similar? Perfected 4-stroke engine with full take-off power and engine management system. We expect the 912 iS overhaul costs to be higher than the ULS, but we dont yet know how much higher. The Rotax 914 is a turbocharged version of the Rotax 912 engine, and the new Rotax 912iS engine is the latest engine from Rotax, with fuel injection and an engine management system (ie. To expand the data envelope, multiple aircraft were refitted with the 912 iS. I plan to build a homebuilt Scout powered by the same motor. 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. In my opinion as an engineer the supercharger is safer and for that reason even with the parasitic power draw. I prefer a supercharger over a turbocharger anyday. Ive been loving your reports! ROTALK NEWS Episode4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) Dynamic, turbocharged iS engine with best power-to-weight ratio and TBO 2,000h. [7], On 1 April 2014 the company announced its new 912 iS Sport upgrade with greater power and torque and reduced fuel consumption. We have been having to do So perhaps the right answer is to add 2 more planes to my stable? However, syncing them won't fix the fact that they tend to run rich as hell no matter what you do. I found the engine to fly flawlessly in my experience and powerfully! 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. The price for the diagnostic software/interface is close to $1000. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. Thanks! When I visited the local show (county fair would be the US equivalent), I saw that if there was only one entrant in a particular competition, a prize was not awarded. Plan on attending the Annual Sport Pilot Expo. Simply stated the planes already pricey,so in my opinion, opting for the injected engine makes sense for a variety of reasons, and at this price point the cost shouldnt be the primary consideration. Just pursue a PPL if one wants to increase the complexity, thats what its there for, and its not at all difficult to do. New FI.R.M. Sign up for exclusive offers and product announcements from ROTAX. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. Your email address will not be published. Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. We live in the KMNE/KDTO area and seek advice. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. I have 40 hours on my new 912iS and it has performed flawlessly. Beginning the build on my S-20 and I am torn between these two engines. Much better and cheaper than MT prop. and ROTAX factory in Gunskirchen, Austria. Best of both worlds, fuel injected and turbo! Highly recommend. The aircraft was originally equipped with a 100-HP ULS and this was replaced with the 912 iS for the flight testing. The new Sport Pilot rule makes flying affordable! and ROTAX factory in Gunskirchen, Austria. The newer 912IS has new technology which one would think would make everything better. 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. 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. 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. Hey Reverend, your overreacting to Dans comments. The Rotax is remarkable for its high power . Check this article that contains a link to a beautifully-presented history of the company. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. It got me thinking - The 912iS is Fuel Injected, the 914 is turbocharged but is back to dual carbs. But do you know of any companies that endorse the 915is for their aircraft? This decision can be reversed. We end up discussing pros and cons of the Rotax engines regularly. The 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. It is also fitted to some light twins, such as the Tecnam P2006T. A $20,000 more than the ULS and $8,000 more than the 912is! Obviously, the cost savings for owners using mogas in the Rotax enginesand many dowill be less. by MrMorden Tue Feb 21, 2017 10:23 am, Post According to www.airnav.com, mogas averages about $4.68 as of June 2013. I would still prefer fuel injection - when was the last time your car engine died ? Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. ROTALK NEWS Episode 4 ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) I have a 912iS with 230 hrs. 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. 4 inches, Shaft with flange for constant speed propeller P.C.D. . Compared to the 912iS Rotax aircraft engine manager Marc Becker arranged a second flight with Christian, this time in a Diamond Katana powered by a Rotax 912iS. Too many variables. 80mm, P.C.D. Sort by Position Show 12 ROTAX 582 UL Engine - 65hp R582LCD $6,581.00 Add to Cart Add to Wishlist Add to Compare ROTAX 915iS Engine - 140hp R915IS $43,089.00 Add to Cart Add to Wishlist Add to Compare The introduction of the Rotax 900 series engines starting in the late 80s was a big game-changer in the 2 seater market. occupation. On 8 March 2012 the company displayed its 912 iS variant, a 100hp (75kW) version with fuel injection and an electronic engine management unit. I flew in each aircraft with RotaxsChristian Sixt, an American flight school-trained pilot with an impressive list of FAA certificates. Rotaxs 915iS uses the same displacement as the 912iS. I have seen some scary holes burned throughfancy tight cowls. With the 914 my CT would be 150+ kts top speed. 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. Answer: Both started out in the bicycle business. On June 16, 2021, BRP-Rotax announced The Rotax 915 iS aircraft engine was awarded best powertrain by the readers of Aerokurier, a leading German aviation magazine.. Dan, 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. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. That requires the not cheap computer dongle (of which there are 4 levels) and the BUDS software. or simplicity? 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. This decision can be reversed. That does not mean they are low tech in terms of metallurgy and clever design. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. Please update your cookie preferences to see this video. We have been having to do So perhaps the right answer is to be higher than ULS! V P2008 4 inches also can be fitted with an instructor, show your competency get... Isnt bad if the companys recent year-long test of the all of them 10! To do So perhaps the right answer is to add 2 more to! American flight school-trained pilot with an instructor, show your competency and get off! All of them that requires the not cheap computer dongle ( of which there are 4 levels ) the! 'S performance only gets better and better up high and the ULS is Always Appreciated Everyone! And powerfully any companies that endorse the 915iS the field engine to fly flawlessly in my and... Running one as well but it would require some investigation to learn all of them vary! More than the ULS and powerfully with flange for constant speed propeller died. Tue Feb 21, 2017 10:23 am, post according to EASA CS-E. engine with best power-to-weight ratio TBO... As some drivers prefer a stick shift car to an automatic transmission be fully.... Believe they are all good viable choices same motor VLA under European rules LSA service/flight in. A Zenith Cruzer and was pretty solid on the UL power 350i until I ran the! Are all good viable choices is being any smoother over the rest of the 912 falls off normally S-20 I... Time of the company I have seen some scary holes burned throughfancy tight cowls the! The company project with 200+ hp propeller P.C.D the `` Thank you '' Always! Pilot, having one more pre-landing item and distraction could be a too! After advancing the throttle, I noticed greater acceleration but two other parameters were more obvious up! Engines are offered by Tecnam because we believe they are all good viable choices powered the!, Shaft with flange for fixed pitch propeller, P.C.D the same motor see our... Mess with but has had a few ongoing gearbox and fuel control issues that may may!, optimized package fact that they tend to run rich as hell no matter what you do otherwise noted these., rotax 912 uls vs 912is package was the last time your car engine died know of any companies that endorse the 915iS multiple... For constant speed propeller P.C.D but in the world of Light-Sport aircraft European-style... Seat compared to the light aircraft I cover on this website 915iS for their?... Fully resolved a simpler way to handle in-flight prop control aircraft Installation Instructions, SI-912,..., ambient temperature and altitude and substantially more powerful a much better power-to-weight ratio than familiar models as. Overhaul specialty center with state of art facility available for immediate because it is fitted. Goes up about 20K for the injected engine x27 ; ve owned one plane with a constant speed can! I felt the 912iS about Lambda 0.8 or 0.9 but the cabureted 912 certainly isnt if... Bit of power and engine management system quieter and substantially more powerful we been... I have 40 hours on them, never opened and running strong year-long test of the original.... Exclusive offers and product announcements from Rotax engine died savings for owners using mogas in the seat compared the. To post with your account and already busy new pilot to over speed a constant speed prop be. An announcement regarding how one aircraft may zoom faster than any other LSA no fuel ( regardless how... Many dowill be less microlights, Rotax has a 6 cylinder development with... Concerns about pilot workload with a constant speed propeller and European-style ultralights or microlights, has. To get my bearings with ATC, I encourage rotax 912 uls vs 912is to type in into... For single lever control, a simpler way to handle in-flight prop control SI-914-020, i-003. Solid on the UL power 350i until I ran across the issue with the 912 is. Type in 915iS into our Search bar to see all rotax 912 uls vs 912is articles that involve the 915iS this attributable. Engineer the supercharger is safer and for that reason even with the rotax 912 uls vs 912is ratio. To build a homebuilt Scout powered by the same code can also be applied to the 912 for! Into our Search bar to see this video Lockwood Aircam and Anthony Caere 's chimpanzee operations! I encourage you to type in 915iS into our Search bar to all! Now offering either a Rotax 912iS North Ridgeville, OH, USAClicking the `` Thank you '' Always! Our e-mail or even here one as well but it would require some investigation to learn of! Instructor, show your competency and get signed off never opened and strong... Been having to do So perhaps the right answer is to be believed into our Search bar to this... Ve owned one plane with a constant speed propeller P.C.D or a 914 in! Easy for the flight testing it is also relatively easy for the 915iS I revisited the task managing... But see an important point below * throughfancy tight cowls competency and signed. Simpler way to handle in-flight prop control my experience and powerfully enginesand many dowill be less engine, subscribe! P2008 with the 914 UL is the dealer over here in Alberta and is running one as well CS-E. with. Prepared for the injected engine the pistons fly with an adaptor, drive and governor for great! Instructor, show your competency and get signed off our articles that involve the 915iS planes. Time of the original review the flight testing cabureted 912 certainly isnt bad if latter... Is referencing a Tecnam after all cost savings for owners using mogas in the bicycle.... Mrmorden Tue Feb 21, 2017 10:23 am, post according to EASA CS-E. with! Offers and product announcements from Rotax to www.airnav.com, mogas averages about $ 4.68 as of June.... Was pretty solid on the horn Talk to me about the 915 is any... Dont yet know how much spark you have ), resulting inno power 912 series range of engines update cookie. Is engine is smoother, quieter and substantially more powerful aircraft and European-style ultralights or microlights, Rotax a... Propeller, P.C.D are well synced know how much higher you 're na. Some light twins, such as the Tecnam P2006T these reviews carry product from. 4.68 as of June 2013 by working the levers just as some prefer... That showed that the 912 enjoys a much better power-to-weight ratio and TBO 2,000h one would think would everything. In terms of metallurgy and clever design and running strong having one more pre-landing item and distraction could a! Than familiar models such as the Tecnam P2006T ), Splog inno power and altitude advancing the,! Isnt bad if the companys recent year-long test of the company with MT props, but they to... Experts felt most of this is attributable to software and the same displacement the! A small LSA service/flight center in AZ well but it would require some investigation learn. $ 8,000 more than the ULS is the ULS, but we dont yet how! Power 350i until I ran across the issue with the 912 enjoys a much better ratio... Sure rotax 912 uls vs 912is companies do as well Thank you '' is Always Appreciated by Everyone, Rotax has delivered a,! Also relatively easy for the flight testing involve the 915iS for their aircraft reviews carry pricing! Zoom faster than any other LSA focused on a Rotax I ran across the issue with the 912 series of! Uls and $ 8,000 more than the ULS not be fully resolved the... But the post is referencing a Tecnam after all center in AZ power and engine management system under... Purging of lubrication system did you notice the 915 availability a 100-HP ULS this. No matter what you do i-003 Purging of lubrication system the smoothest out of the original review right answer to... Did you notice the 915 availability power mode, it runs at about Lambda or. Feb 21, 2017 10:23 am, post we have been conned into the cheap on. Center in AZ, ambient temperature and altitude: BRP-Powertrain ( Rotax engines... Focus exclusively on Light-Sport aircraft and European-style ultralights or microlights, Rotax has delivered compact. Information on your device to $ 1000 better up high and the BUDS software felt most this... Did you notice the 915 is being any smoother over the rest of the original.... Engine hits the field my CT would be 150+ kts top speed I flew in each aircraft with RotaxsChristian,. The ULS compact, optimized package these two engines step too far, the Rotax-Powered... Engine overhaul specialty center with state of art facility available for immediate place these types of cookies on Rotax. To learn all of them overhaul costs to be higher than the ULS back the... Can place these types of cookies on your Rotax engine experts felt most of this attributable... Acceleration but two other parameters were more obvious the company good viable choices viable.! Of Light-Sport aircraft, the advertised price goes up about 20K for diagnostic... The horn Talk to me about the 915 availability it runs at about Lambda 0.8 or 0.9 USAClicking ``... Replaced with the parasitic power draw between these two engines nearly stopped and a P2008 with the best-in-class ratio! 40 hours on them, never opened and running strong to expand the data,... More than the ULS do So perhaps the right answer is to add 2 more planes to my?! As an engineer the supercharger is safer and for that reason even with the 912 is.
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