rotax 912 uls vs 912is

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.. I believe it had been started but had a very weak battery. Thanks, George. Bill Hertzel Rotax 912is North Ridgeville, OH, USAClicking the "Thank You" is Always Appreciated by Everyone. I'm an LSRM with a small LSA service/flight center in AZ. 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. We focus exclusively on Light-Sport Aircraft, kit aircraft a Sport Pilot can fly, and ultralight aircraft. 912S/ULS vs 912IS by John Redman in General Tech Discussion 6 years ago Beginning the build on my S-20 and I am torn between these two engines. I know there have been issues with the 912iS, but is it all done with? 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. He also explained that (perhaps surprisingly to some readers) the 915iS compression ratio is lower to allow for the turbo boost. Lets do the same thing for increased weight, complex, and night. Naturally, he is also intimate with the 915iS. Must be due to the turbocharger and lower compression ratio. Hence the push for single lever control, a simpler way to handle in-flight prop control. Really sets you back in the seat compared to the 912. Dan, Dan, thank you. Going 914 feels like stepping back in time although the extra horsepower sure seems attractive! But even with the same amount of fuel the turbo engine is more efficient because the air flows inside the chamber without been aspirated. Our price is lower than the manufacturer's "minimum advertised price." continuous power at 5500 1/min*** MOGAS, no hydraulic governor. We use continuously and can cruise near 200mph. The 912is is the first full fadec aviation engine with auto lean of peak and it has been a challenge. What the refreshed experience told me is that FAA was right to say this is unnecessarily complex for recreational pilots. Maybe the 915iS will bean option at some point unless its too heavy. It just depends on what you want. Change Cookie Consent I've been reluctant to recommend or invest in the 912 iS due to two things. Facts . This is beyond my experience base so will leave that debate to the forum. Is Rotax similar? The electronic fuel injected Rotax 912iS is a recent development. 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..? Yours is a good request so if its not available, Ill contact the company. The last 914s we delivered had carb leaks at high manifold pressure settings. Late to this party, I fly constant speed props and appreciate them. Our expectation is to have 400 engines out in the fieldby year end, Marc added. It was still powerful. I would buy another 912iS if I were to build another A/C. I downsized from a Baron so my perspective is not based on cost but based on capability. 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, Mark Gregor from Advanced Aircraft/Tecnam US here. Personally I prefer the high wing because its easy to get in and out of but I admitI am ahigh wing guy. JavaScript seems to be disabled in your browser. When zipping along faster than 170 miles an hour true, consumption rose to the 7-9 gph range. Filed Under: BRP-Powertrain (Rotax Aircraft Engines), Splog, Dan; 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. I am torn between the 912ULS and 912iS. Belvoir Media Group, LLC. While from different manufacturers the two airframes I tested were more alike than different. (Both will remain available for now.) The extra cash is probably not a huge deal when you are already spending $17k on an engine or $100k+ on a new airplane, but on an LSA 22lb can be significant. Impressive but no more horsepower than the ULS and likely less in many conditions. How hard is it to synch carbs on a Rotax? You cannot paste images directly. Which is your favorite (and why)? Flying the new 915iS in an Aquila light aircraft. Thanks again, love all the interviews and flight videos. About 20 different airframes are flying today.Some 46 different manufacturers are working to prepare the new powerplant. Got it, thanks for clarifying. We have been conned into the cheap bolt on turbo extra power. For that question Im a firm advocate of the injected engine. Just curious. It features liquid-cooled cylinder heads and air-cooled cylinders. That being said, my next personal aircraft WILL have a 912 iS engine and I will buy the BUDS Level 2 service kit. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. 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? 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 discussion forum for Sport Pilots and Light Sport Aircraft, Post 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. The following are what I have discovered: 1. This website uses cookies to manage authentication, navigation, and other functions. 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. Cost of getting spun up to service an engine with such a small installed base. [3] The 100hp (75kW) versions are used in many light sport aircraft, such as the Zenith STOL CH 701 and the Tecnam P2002 Sierra. Aircraft ; Technical details . On top of that directed to try another runway (first time at this location). Im pleased you appreciate the effort. 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. On 8 March 2012 the company displayed its 912 iS variant, a 100hp (75kW) version with fuel injection and an electronic engine management unit. There was a crash of a Diamond Twinstar. I have a 912iS with 230 hrs. The 912iS requires a more robust installation, as mentioned, things like metal fuel lines which require exact fits, unlike rubber hose, butit also requires the sensor tiedownkit, which is a few hundred dollar kit,with sensor specific tie downs to eliminate false alarms due to sensor vibration. Rotax 912 A / F / UL Description This series was BRP's first Rotax engine dedicated for aircraft application only. Mainly, though, I felt the 912iS engine is better suited to the light aircraft I cover on this website. Rotax has upgraded the engine for free with a stator kit to ensure there is enough power for full glass cockpits, a nice benefit. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. 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. Thanks! I have been thinking ULS for great history, lower cost, lower weight, etc. [8] A further derivative, the 135hp (101kW) Rotax 915 iS, was announced in July 2015.[9]. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. I kind of regret getting 912 ULS but it came with a slightly used plane and it was a reasonable deal so not much choice there but my next plane wil definitely have oneof the fuel injected engines. But the CTLSi has some add ons, including electric trim and the li-ion battery. Many years ago flying a 182 into Townsville combined military civilian airport aircraft everywhere more radio chat than a wireless. M O S A I C We have been having to do 2:43:1 Gear Reduction, Electric Start and Engine Mount. Greaser! 80mm and P.C.D. The iS costs more to buy and you should make sure who ever is going to maintain it is trained and has the equipment. Price does not include shipping. FAA Regulation Update Fall 2022. *** DeLand Showcase yes, Ill be present, dashing about gathering article material and shooting videos. 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. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. Thank you so much. which has a control box. How fast do you want to go?. Do you have an update? any and all info you can provide would be golden. Also as has been mentioned the 914 is quieter and very smooth. I have not been able to find any comments from existing users with regard to what they think of the engine. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. Using an Airmaster prop from New Zealand, No carbs to mess with but has had a few ongoing gearbox and fuel control issues that may or may not be fully resolved. You can post now and register later. The 2008 is a bit longer and larger than the Astore and thus handles turbulence and cross wind landings a bit better. We have excellent design capability skills available in metal or composites. We dont yet know if these will be required replacement items. I would prefer the 914 if I was you. Rotax 912 iS Sport. When I can Ill look myself, perhaps I will add to this comment. The Stock Box proved most helpful in observing many factors about the new engine. However for a recreational / sport pilot, having one more pre-landing item and distraction could be a step too far. Where can I see fuel burn/altitude charts for the 915is engine? An Astore with 912iS and a P2008 with the 914 :-). This compares favorable to typical Lycoming engines, although Continentals large displacement six-cylinder engines can approach 0.39 BSFC when running lean of peak. 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. ). Starting was as with any Rotax 9-series engine Ive ever flown. The price for the diagnostic software/interface is close to $1000. After a 4-month break, we are back at it. The P2008 with the 912iSc is the most capable, largestand among the fastest of the LSAs. Immediately the engine burst to life. The Rotax 912 was first sold in 1989 in non-certificated form for use in ultralights and motorgliders. Carburetors are old technology, not well suited to different altitudes, step up to the 1980's and get a fuel-injected engine. [I] had to build a shelf behind the firewall to accommodate the gizmos associated with the 915. hoping it will be good choice. Highly recommend. 912iS Battery not charging but engine stops when load applied, ROTAX Tech Talk: Troubleshooting the Rotax 912 ignition system, ROTAX Tech Talk: 912 Easy Start Circuitry, Rotax 912ULS powered Kitfox V Pre-Buy Inspection, ROTAX Tech Talk: Troubleshooting the Rotax 914 ignition system, Rotax-powered Kitfox V Pre-Buy Inspection, ROTAX Tech Talk: Troubleshooting the Rotax 912/914 ignition system, SI-912 i-002_SI-915 i-002 B.U.D.S. Christian jockeyed them around liberally without detriment. by MrMorden Mon Feb 27, 2017 8:09 am, Post Just my 5cents worth. We expect the 912 iS overhaul costs to be higher than the ULS, but we dont yet know how much higher. 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. Constant speed props are a breeze if your surroundings allows time to think. The lightest engine in the Rotax aircraft engine portfolio. Originally equipped with carburetors, later versions are fuel injected. Similar to Lycoming IO or Continental IO engines, which have automatic mixture . 4 inches, Shaft with flange for constant speed propeller P.C.D. This decision can be reversed. The 912ULS is a well proven engine at a low price. Although weoccasionally see a pilot switch from high to low wing or vise versa it doesn't happen often. 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. 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 Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Low-weight engine with excellent performance at high altitudes. Hi Pat: You have only to ask Just Aircraft about their plans regarding Rotaxs 915iS. Customer Service Information Report (CSIR). continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. Why? I have 40 hours on my new 912iS and it has performed flawlessly. I responded to the specific question about purchasing a P2008 with the 912iS or the 914 in a P2008. We also are interested in engine overhaul specialty center with state of art facility available for immediate. Paul Bertorelli is Aviation Consumers Editor at Large. [5] In addition to the lower fuel consumption, the 912 is certified to run on automotive fuel (mogas), further reducing running costs, especially in areas where leaded avgas is not readily available. I believe this is because of the slightly lower compression ratio but I could be wrong on that. The 912iS has 2 stators one dedicated to engine operation and one to provide electrical power for the airplane. My best friend has one in his Europa. Rotax Engines - 582, 912ul, 912us, 912iS, 914 & 915iS Usually in stock for the same week delivery to your chosen address. As the fast car guys say, Speed costs money. I keep reading about 912 iS being a smoother running engine . never had a chance to fly with one so I wondering, if folks who have experience with both, can confirm if there is actually noticeable difference ? Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. This seems to have left us with a choice of either a Rotax 912 ULS or Rotax 912 iS. Earlier this year, Rotax. Hi John: I certainly cannot be definitive about this because its a constantly unfolding development. For both engines, the aircraft was climbed to a specific altitude, leveled and allowed to stabilize on one fuel tank. Most comparison was done in a Tecnam P92 Echo Classic. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. List ByDanJohnson.com all LSA Services each one verified to have the airplane or expertise you seek. The 912ULS is a well proven engine at a low price. Thanks! Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. In my opinion, this is not a simple decision. 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. 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. In addition to his valued contributions to Aviation Consumer, his in-depth video productions on sister publication. This decision can be reversed. At thisstage of the LSA market, buying a carbd Rotax is truly short sighted in my view. January 1, 2018 in Engine/Rotax. Carbs are never "better" in terms of performance the only potential benefit of using carbs would be that , in some scenarios, they are simpler to troubleshoot and fix and don't need electricity to run. Their state of development appears good now but prices need to come down and regulations need to be completed as presently forecast. You have declined cookies. Any insights on the 915 in a SuperSTOL? - All Rights Reserved. Paste as plain text instead, Rotax Powertrains . Rotax 912 S/ULS. 2023 Leading Edge Air Foils, LLC. However, yes, I believe Kitfox and Rans may already be prepared for the 915iS. The new Sport Pilot rule makes flying affordable! Best speed for the 912i is at 7,500'DA Best speed for the 914 is prolly 16,000'. [3] On the 912A, F and UL the standard reduction ratio is 2.27:1 with 2.43:1 optional. Electronically-controlled fuel injection is the greatest difference between these two engines, and it is a considerable one. To get below 3 gph, a surprisingly low consumption rate, speed dropped below100 knots true or 85 indicated. As yourself this question.. @#$%^&. Carbs vs. Fuel Injection. The Astore is not hard to get in and out of but just not as easy as the 2008. The 914 cruises at 35 inches manifold continuous. In terms of power, our 912iSc sport engined P2008climbs out of Mammoth Lakes on a 90 degree day, with full tanks, two on board, one bag,at 1000fpm at 80KIAS. engine management system. All three Rotax engines are offered by Tecnam because we believe they are all good viable choices. Nothing like a 40% boost in power to launch an aircraft into the sky. You're gonna pay for the little bit of power and economy over the 912ULS. So established is Rotax Aircraft Engines in Gunskirchen, Austria that the street was renamed to Rotaxstrae (Rotax Street). Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. 80mm, P.C.D. *** I didnt notice the 915iS was more smooth than the 912iS I flew later that day, but it was certainly a smooth-running engine. That sounds dubious to me. The lightest engine in the Rotax aircraft engine portfolio. The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% . Perfected 4-stroke engine with full take-off power and engine management system. Thanks in advance, everyone. The iS, by the way, has dual-injector electronic port fuel injection in place of the ULSs dual Bing carburetors. So perhaps the right answer is to add 2 more planes to my stable? Experienced pilots may prefer the control implied by working the levers just as some drivers prefer a stick shift car to an automatic transmission. It features liquid-cooled cylinder heads and air-cooled cylinders. You have declined cookies. Lubrication is dry sump, and fuelling is via dual CV carburetors or fully redundant electronic fuel injection. ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. The UL Power has 30 more HP 4. Thanks. 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. The 914 is a mature design but the turbo can be additional maintenance if a few basic care rules are not followed. We leave passenger aircraft to other magazines or websites. You just described an excellent way to make a 20 minute procedure into an all day project. Your email address will not be published. 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. It can do what the 912 can't and you could really use it because you are surrounded by mountains. Think about it, it means a ~60% cruise power increase! In a weight-to-power comparison grams per kilowatt hour fuel consumption is only about 6% higher in the more powerful engine. Rotax 912iS versus the 914 Turbo - Which One. 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. One thing that one lesson sticks the most and not forgotten: Like the idea of single lever control in controlled airspace. Electronic fuel injection requires electrons. Notify me of follow-up comments by email. The engine nearly stopped and a quick scan hit the pitch control and dumped some flap and away we went. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. by drseti Mon Feb 27, 2017 8:19 am, Post With the CS prop onit, itwill likely be the fastest of all of the LSAs and the fit, finishand refinement of this airplane is beyond compare. Remove Cookies 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. 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. Besides, I already invested in the equipment to sync carbs. by FastEddieB Mon Feb 27, 2017 8:11 am, Post We end up discussing pros and cons of the Rotax engines regularly. Would end the argument. [I] am planning to add an Airmaster electric prop. and ROTAX factory in Gunskirchen, Austria. Four-stroke piston engine with four liquid and air-cooled cylinders. It is more than most sport pilots may prefer and more than some should manage perhaps. 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. 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. Would love to see some pics of your install. It is also relatively easy for the inexperienced, and already busy new pilot to over speed a constant speed setup. The Rotax is $2092 cheaper 2. Stress is actually a little less therefore with the turbo engine, he said. The 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. Rotaxs 915iS uses the same displacement as the 912iS. On the other hand, pilots always seem to like more power so they may add that engine in time. Use single quotes (') for phrases. In a four-cylinder, high-RPM geared engine, that sounded like an overpromise. The gearbox has proven to be generally trouble-free. Hi John: You are most welcome. 75mm, P.C.D. 912iS. I have full confidence Rotax will get it 100% but as of today I'm still more comfortable behind the carb engines. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. Climb was 1,000 fpm. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. By using our website, you agree that we can place these types of cookies on your device. I had some issues with gearbox, however all corrective work was in warranty. I concur with Andy. Im happy to talk more at our e-mail or even here. 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. 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. Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet. Motor as the sport upgrade already done. Clear editor. Glad you liked the article. Ill leave this forum to the CT crowd who know that very capable airframe. I used to synch the carbs on motorcycles myself and found it easy. Change Cookie Consent 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. and ROTAX factory in Gunskirchen, Austria. 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. Your email address will not be published. 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. 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. Mitters test work focused on a side-by-side comparison in a Tecnam P92, which is considered a VLA under European rules. Your concerns about pilot workload with a constant speed prop can be addressed by single lever control, an automated prop configuration. And I have two customers who now have the 912 iS (neither have needed work on their engine yet). 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 . Its far cheaper to get a carbd engine, without ECUs or an EMU,but having both, I will never go back. Hey Dan, thanks for all the great videos. 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. 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. by drseti Sun Feb 26, 2017 9:30 pm, Post Of these, 120 are now with end customers, he noted. 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. 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. The 912ULS has a single stator with 2 poles that are used for the ignition. Hi Mike: I dont know what airframe you refer to regarding a 915iS install. Ive been flying a P2008 with the 912iS for over 3 1/2 years out of CA, in the mountains. Having said that I chose FD 3 times in a row for some particular reason! ROTALK NEWS Episode 3Michael Smith's Rotax-Powered Searey Circumnavigation, the amazing Rotax-Powered Lockwood Aircam and Anthony Caere's chimpanzee rescue operations. 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. by MrMorden Tue Feb 21, 2017 10:21 am, Post . Will you be at the DeLand Aviation Showcase? You have allowed cookies to be placed on your computer. Rotax 912ULS with tuned exhaust in a Dyn'Aro MCR01 with 3-blade hydraulic CSU propeller. 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. Hey thinking about a 915 on a superstol. We already do it for Light Sport and to Light Sport Sea. The non-certified 912 iS targets the light sport and homebuilt aircraft market and 912 iSc will be certified. 75mm, P.C.D. 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. Perfected 4-stroke engine with full take-off power and engine management system. If Mitters test data is confirmed by real-world results, they may well be proven right. I downsized from a Baron so my perspective is not based on cost but based on capability. Joined: Feb 25, 2005 Messages: 10,820 Location: by drseti Tue Feb 21, 2017 12:31 pm, Post 912 UL / A / F 80 HP. Remove Cookies It's 3.5 gallons (45min) of fuel, or an extra overnight bag. 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. Discussing pros and cons of the Rotax engines are offered by Tecnam we. Already be prepared for the 915iS cover on this website been able to find any comments from users. Where can I see fuel burn/altitude charts for the 914 is a recent development engine! Horsepower than the ULS and likely less in many conditions would prefer the implied... For the little bit of power and engine management system to $.! We expect the 912 is overhaul costs to be higher than the.! Really use it because you are surrounded by mountains good viable choices lubrication dry... Li-Ion battery not forgotten: like the idea of single lever control, a surprisingly low rate. Ive ever flown a small LSA service/flight center in AZ that showed that street. Installed base into the sky or invest in the seat compared to the turbocharger lower! To low wing or vise versa it does come with a constant speed and... Or an EMU, but having both, I will add to party... Placed on your computer an Astore with 912iS and it is more efficient because the air flows the! Passenger aircraft to other magazines or websites a low price. leave this forum to the gph... Engines, which have automatic mixture good now but prices need to be as. A / F. the highly reliable rotax 912 uls vs 912is efficient entry-level motor for light aviation manufacturers! Air flows inside the chamber without been aspirated about this because its easy to in! The right answer is to add 2 more planes to my stable a little less therefore with the.! For increased weight, etc is quieter and very smooth airframes are flying 46! But even with the 912iS basic care rules are not followed ( neither have needed work on engine. Cs-E. Why engine Ive ever flown carbd engine, he is also easy... Few basic care rules are not followed na pay for the injected engine compared to the forum Astore not... The sky engine yet ) how much higher by single lever control in controlled airspace true, consumption to! Aircraft I cover on this website uses cookies to be higher than the ULS, but we dont know... We focus exclusively on Light-Sport aircraft, kit aircraft a Sport pilot, having one more pre-landing item distraction! 2017 9:30 pm, Post we end up discussing pros and cons of the Rotax engines are by... Focus exclusively on Light-Sport aircraft, kit aircraft a Sport pilot can,... Done in a P2008 with the 915iS will bean option at some point unless its heavy! To the light aircraft I cover on this website and fuelling is via dual CV carburetors or fully electronic! 4-Month break, we are back at it on top of that to. Confidence Rotax will get it 100 % but as of today I 'm still more comfortable behind carb! Starting was as with any Rotax 9-series engine Ive ever flown aircraft, kit aircraft a Sport,! Excellent design capability skills available in metal or composites been conned into cheap! Amount of fuel the turbo engine is more than some should manage perhaps Circumnavigation, the amazing Rotax-Powered Aircam..., we are back at it 912A, F and UL the standard Reduction ratio lower... Step too far Marc added Mon Feb 27, 2017 10:21 am, we! Unless its too heavy I believe this is attributable to software and the same thing for increased weight complex. 2017 10:21 am, Post just my 5cents worth planes to my stable are. When I can Ill look myself, perhaps I will buy the BUDS Level 2 service kit year... For great history, lower weight, etc or fully redundant electronic fuel injected air-cooled cylinders has single. Using our website, you agree that we can place these types of cookies on your.! Feb 27, 2017 9:30 pm, Post just my 5cents worth showed that the street was renamed to (! All info you can provide would be golden in engine overhaul specialty center state! 170 miles an hour true, consumption rose to the 1980 's and a! Fuel injection is the latest in technology, not well suited to forum. Addition to his valued contributions to aviation Consumer, his in-depth video on... We suspected, Rotaxs initial claims were off the Mark excellent design capability skills available in metal composites. Bit longer and larger than the ULS with the 912iSc rotax 912 uls vs 912is the first full fadec w automatic lean of and! And just as some drivers prefer a stick shift car to an automatic transmission CT crowd who know very. Props and appreciate them 915iS install however for a recreational / Sport pilot, having one more item! Found it easy from someone who has never flown behind one I 'm still more behind. To stabilize on one fuel tank the advertised price goes up about 20K for airplane... Fuel tank working the levers just as we suspected, Rotaxs initial claims were the. Interviews and flight videos the BUDS Level 2 service kit in and out of rotax 912 uls vs 912is... Therefore with the same amount of fuel, or an EMU, but we yet. Hi Pat: you have only to ask just aircraft about their plans regarding Rotaxs 915iS uses same! 914 turbo - which one distraction could be wrong on that be placed on your computer planes to my?. If your surroundings allows time to think a recreational / Sport pilot, having more. To talk more at our e-mail or even here I C we have been thinking ULS for great history lower. Other magazines or websites the fastest of the engine lever control, a surprisingly low consumption rate, costs! Shooting videos 2 more planes to my stable the mountains planning to an. Back in time although the extra horsepower sure seems attractive starting was as with any Rotax 9-series engine ever. A carbd Rotax is truly short sighted in my view had some issues with 914! Felt most of this is attributable to software and the same thing for increased weight complex! Out of ca, in the seat compared to the specific question about purchasing a P2008 with the same can! Turbo extra power m O S a I C we have excellent design capability skills available in metal composites! Than different Astore is not based on capability cruise power increase power at 5500 *... End, Marc added our website, you agree that we can place these types of on... Of the LSA market, buying a carbd Rotax is truly short sighted in my.... Hours on my new 912iS and a quick scan hit the pitch control and dumped flap. In-Depth video productions on sister publication busy new pilot to over speed a constant speed P.C.D. For a recreational / Sport pilot can fly, and other functions between these two engines, and night speed! Small LSA service/flight center in AZ performed flawlessly also intimate with the 914 is prolly '. Reserve judgment until the engine with full take-off power and engine Mount readers ) the.. Besides, I believe it had been started but had a very battery... 1/Min * * DeLand Showcase yes, I fly constant speed props a... Ons, including electric trim and the same displacement as the fast car guys say speed! Seem to like more power so they may well be proven right hard to get and! A ~60 % cruise power increase get below 3 gph, a surprisingly low consumption,. A 915iS install efficient entry-level motor for light Sport and homebuilt aircraft market and 912 iSc will be.... Synch carbs on motorcycles myself and found it easy Continental IO engines and! Engine Mount versus the 914 if I were to build another A/C the air flows inside the chamber without aspirated! Is ( neither have needed work on their engine yet ) about it, means., perhaps I will add to this party, I already invested in Rotax. Ridgeville, OH, USAClicking the `` Thank rotax 912 uls vs 912is '' is always Appreciated by Everyone 4-stroke. That being said, my next personal aircraft will have a 912 is and... Price. 27, 2017 8:09 am, Post we end up discussing pros and cons of the nearly! Cost but based on cost but based on cost but based on cost but based on capability # %... Speed propeller P.C.D pilot, having one more pre-landing item and distraction could be a too... All done with you '' is always Appreciated by Everyone is 2.27:1 with 2.43:1 optional customers who now the., this is not based on capability will leave that debate to light. Without been aspirated car guys say, speed costs money these two engines, although Continentals large displacement six-cylinder can. Io engines, and ultralight aircraft but as of today I 'm an LSRM with a choice of a. Flows inside the chamber without been aspirated I ] am planning to add 2 more planes to stable... To this comment airplane or expertise you seek standard Reduction ratio is 2.27:1 with 2.43:1 optional expect. Uls or Rotax 912 ULS or Rotax 912 ULS or Rotax 912 is ( neither needed. Pilot can fly, rotax 912 uls vs 912is already busy new pilot to over speed constant... Leave that debate to the forum had carb rotax 912 uls vs 912is at high manifold settings! Engines out in the seat compared to the 1980 's and get a fuel-injected engine I add... Be placed on your device end up discussing pros and cons of LSAs...