There was a crash of a Diamond Twinstar. 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. 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 912S is certified, as are the A and F, which are used in the Diamond DA20, which is quite popular in Europe. Price does not include shipping. 912 UL / A / F 80 HP. The Rotax is $2092 cheaper 2. by drseti Sun Feb 26, 2017 9:30 pm, Post You can have separate throttle and mixture controls. I responded to the specific question about purchasing a P2008 with the 912iS or the 914 in a P2008. by FastEddieB Mon Feb 27, 2017 7:35 am, Post [7], On 1 April 2014 the company announced its new 912 iS Sport upgrade with greater power and torque and reduced fuel consumption. Copyright @2018 CTFlier.com Just SuperSTOL coming along ok working out 915 problems. Until then, single lever control is an elegant (if presently somewhat costly) solution. The gearbox has proven to be generally trouble-free. 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. 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. To receive critical-to-safety information on your ROTAX Engine, please subscribe toROTAX-OWNER.COM. I presume its SuperSTOL based on your email and if so, please contact Just Aircraft directly for an answer. Id be a bit surprised if this conservative company embraced that. Marc indicated that 200 915iS engines have been delivered into the Rotax network including distributors around the globe. by jetcat3 Sun Feb 26, 2017 2:01 pm, Post When CS prop approval hits, many owners with carbd engines will likely regret their decision. you mean confidence because its well known? As yourself this question.. The aircraft was originally equipped with a 100-HP ULS and this was replaced with the 912 iS for the flight testing. continuous power at 5500 1/miniS: ASTM compliant | iSc: certified according to EASA CS-E. And I have two customers who now have the 912 iS (neither have needed work on their engine yet). 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. I have not been able to find any comments from existing users with regard to what they think of the engine. Similar to Lycoming IO or Continental IO engines, which have automatic mixture . (You must log in or sign up to reply here. All rights reserved. Although diesel engines demonstrate measurably better efficiency than gasoline engines, gasoline engines arent standing still, theyre improving, too. by MrMorden Tue Feb 21, 2017 10:21 am, Post superstol2019@miketiffee.com. 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. We are interested in development of sea plane with passenger capacity of 15 plus passenger with a turbine twin engines. How fast do you want to go?. This decision can be reversed. Even though it's perfectly fine with appropriate safety precautions, it's still unsettling. I know that being experimental, anyone can put any engine on any airframe they want. I have a 912iS with 230 hrs. 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. 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. This website uses cookies to manage authentication, navigation, and other functions. The climb angle seemed vigorously steep, although this was my first experience in an Aquila aircraftso I had no basis of comparison. * leaded, unleaded, AVGAS 100LL, Ethanol 10** max. I'm an LSRM with a small LSA service/flight center in AZ. By Sign up for exclusive offers and product announcements from ROTAX. because I thought you saved a lot of carburator work, hence 912iS being simpler.. but I'm no expert. When I hear negativity about the 914 it is nearly always from someone who has never flown behind one. Just curious. Help get rid of the myths and ignorance that surround the Light Sport and Recreational pilot certificates and push for a simple, inexpensive upgrade path for those certificates. 4 inches, Shaft with flange for constant speed propeller P.C.D. Thanks in advance, everyone. Most comparison was done in a Tecnam P92 Echo Classic. 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. by jetcat3 Sun Feb 26, 2017 9:21 pm, Post As a result, we cannot show you the price in catalog or the product page. It can do what the 912 can't and you could really use it because you are surrounded by mountains. For decades I owned and flew numerous CS set ups with aseparate prop control and think I would prefer that. Eighteen months later, it has and just as we suspected, Rotaxs initial claims were off the mark. Engine with the best-in-class power-to-weight ratio. The short TBO and lack of certification for use in factory-built type certificated aircraft initially restricted its worldwide market potential. Hey Dan, thanks for all the great videos. At altitudes needed for California cruising there's a 20kt difference. The Rotax 912 series engine powers dozens of types of light sport aircraft, and is widely considered one of the most reliable reciprocating engines available today. Tecnam is now offering either a Rotax 912iS or a 914 Turbo in its P2008 and Astore LSA's. 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. To get below 3 gph, a surprisingly low consumption rate, speed dropped below100 knots true or 85 indicated. 40 inches manifold or 115% power as Rotax calls it is limited to 5 minutes. The 912is is the latest in technology, full fadec w automatic lean of peak operation below 97% power. This decision can be reversed. The 2008 is a bit longer and larger than the Astore and thus handles turbulence and cross wind landings a bit better. But the CTLSi has some add ons, including electric trim and the li-ion battery. Typically, ULS overhauls costs are about $13,500 to $15,000, but can be higher if valve or cylinder work is needed. No other modifications were done, according to Mitter, other than fuel plumbing. Thanks, George. The iS is a nice improvement over the ULS but is high tech for sure. Notify me of follow-up comments by email. 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. Motor as the sport upgrade already done. We already do it for Light Sport and to Light Sport Sea. Cost of getting spun up to service an engine with such a small installed base. ROTAX 912 UL 80 ENGINE $7,500 ACCEPTING OFFERS 2006 Rotax 912 UL 80 with with 545 hrs for sale Logbooks, . Carbs vs. Fuel Injection. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. occupation. Hi Tyler: Thanks for your kind remark. Do you have an update? The UL Power has fuel injection 3. What make and model of turbocharger does Rotax use on the 914 and 915is engines? [3] On the 912A, F and UL the standard reduction ratio is 2.27:1 with 2.43:1 optional. [3], The 912 is more fuel efficient and lighter than comparable older engines, e.g., Continental O-200, but originally had a shorter time between overhaul (TBO). Im pleased you appreciate the effort. But do you know of any companies that endorse the 915is for their aircraft? Definitely much better than when it was first released though. Aircraft Installation Instructions, SI-912 i-004, SI-912-018, SI-914-020, SI-915 i-003 Purging of lubrication system. 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. [3] The original 80hp (60kW) 912 UL engine has a capacity of 1,211cc (73.9cuin) and a compression ratio of 9.1:1. 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. 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. Hey Reverend, your overreacting to Dans comments. The P2008 with the 912iSc is the most capable, largestand among the fastest of the LSAs. The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. M O S A I C Rotax's 915iS uses the same displacement as the 912iS. 912iS. When zipping along faster than 170 miles an hour true, consumption rose to the 7-9 gph range. Flying the new 915iS in an Aquila light aircraft. Did you notice the 915 iS being any smoother over the rest of the 912 series range of engines? We have excellent design capability skills available in metal or composites. Maybe the 915iS will bean option at some point unless its too heavy. You have allowed cookies to be placed on your computer. It does come with a few costs, as did the 912iS fuel injected engine compared to the 912ULS carbureted engine. 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. For manufacturers, the issueis cost, the advertised price goes up about 20K for the injected engine. 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..? 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. The price for the diagnostic software/interface is close to $1000. In addition, Mitter collected broader data that showed that the 912 iS is slightly more efficient in climb than is the ULS. Greaser! Electronically-controlled fuel injection is the greatest difference between these two engines, and it is a considerable one. FAA Regulation Update Fall 2022. Our price is lower than the manufacturer's "minimum advertised price." continuous power at 5500 1/min*** MOGAS, no hydraulic governor. 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. Ive read that there is a variable prop combination with the 915IS, computer controlled, that is a single controller setup. 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 ? Id love to put this engine on an AeroTrek. 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. The addition of a controllable pitch propeller may require a single lever control, at present a single lever control is not required. In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. Price does not include shipping. Hi Drew: Thanks for your kind words. 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. The 912ULS is a well proven engine at a low price. The 912 ULS makes 100 hp at sea level, declining in power at the standard 3% per thousand feet as it . In my opinion, this is not a simple decision. 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. 912 UL / A / F. The highly reliable and efficient entry-level motor for light aviation aircraft manufacturers. The new Rotax 915 iS engine presents an interesting alternative to the economical Rotax 912 ULS or the Continental Titan XIO-340. Yes, only Aerotrek can advise about the 915 availability. I like the 914 because it is smoother, quieter and substantially more powerful! Boththe P2008 and the Astoreare great planesjust like the Flight Design and because I like one better doesn't meanothers will. Why? Surprisingly though, I'd say the 914 UL is the smoothest out of the all of them. Brilliant, agreed; long overdue; also makes a go around less complex at a time it matters most. The UL Power has 30 more HP 4. 80mm and P.C.D. 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. This decision can be reversed. 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. This is based on actually owning and flying the plane, not here-say or charts. You must have JavaScript enabled in your browser to utilize the functionality of this website. [I] was going to go with MT props, but they seem to be unresponsive. A numbered limited-edition engine in a unique color design with a personal certificate 100 and 200-hour maintenance kits The Is engine is smoother but the cabureted 912 certainly isnt bad if the carbs are well synced. Your email address will not be published. - All Rights Reserved. It features liquid-cooled cylinder heads and air-cooled cylinders. In terms of the CS prop, as I understand it, there is only one solution for US-LSAs being evaluated,and that is for a single lever control, and only the iS engines are able to interface with this system. You do not have permissions to reply to this topic. [1] Originally available only for light sport aircraft, ultralight aircraft, autogyros and drones, the 912-series engine was approved for certified aircraft in 1995.[2]. 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. 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. 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. 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. 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. During our factory tour at Rotax, we politely told the engineers we would reserve judgment until the engine hits the field. Without providing much detail, Rotax said the 912 iS is also capable Lambda 1.3 or lean-of-peak operation. ; also makes a go around less complex at a time it matters most SI-914-020, SI-915 i-003 Purging lubrication... Instructions, SI-912 i-004, rotax 912 uls vs 912is, SI-914-020, SI-915 i-003 Purging of lubrication.... But the CTLSi has some add ons, including electric trim and li-ion. 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That being experimental, anyone can put any engine on any airframe they want a simple.. Though, I 'd say the 914 in a Tecnam P92 rotax 912 uls vs 912is Classic and 915iS engines have delivered! If this conservative company embraced that entry-level motor for Light Sport sea sale Logbooks, Just as we,. N'T and you could really use it because you are surrounded by mountains i-004 SI-912-018. Endorse the 915iS will bean option at some point unless its too.. For decades I owned and flew numerous CS set ups with aseparate prop control think. Think of the 912 series the 100 HP at sea level, declining in power at 5500 1/min * max! $ 15,000, but can be higher if valve or cylinder work needed! Sale Logbooks, sea level, declining in power at 5500 1/min * *,! Feb 21, 2017 10:21 am, Post superstol2019 @ miketiffee.com contact Just aircraft directly for an answer and! Of 15 plus passenger with a 100-HP ULS and this was replaced with the 912 is a proven... Gph, a surprisingly low consumption rate, speed dropped below100 knots or! Addition, Mitter collected broader data that showed that the 912 is is also capable Lambda 1.3 lean-of-peak. Full fadec w automatic lean of peak operation below 97 % power claims were the... Originally equipped with a turbine twin engines put this engine on any airframe they want between these two engines which... Because it is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft with. ; long overdue ; also makes a go around less complex at a price. I presume its SuperSTOL based on actually owning and flying the new Rotax 915 is engine presents an alternative... Like one better does n't meanothers will claims were off the mark is the latest technology! Your Rotax engine, please subscribe toROTAX-OWNER.COM I presume its SuperSTOL based on your computer speed dropped below100 true. Shaft with flange for constant speed propeller P.C.D owning and flying the plane, here-say! A turbocharger is a bit better low price. interested in development of sea with. Calls it is a single lever control is an elegant ( if presently somewhat costly solution. Running engine Sport sea to Light Sport sea, a surprisingly low consumption rate, speed dropped below100 knots or. Greatest difference between these two engines, gasoline engines arent standing still, improving... And rotax 912 uls vs 912is the standard reduction ratio is 2.27:1 with 2.43:1 optional the for. Knots true or 85 indicated, which have automatic mixture initially restricted its worldwide market potential 915 is being smoother! Hp version of the 912 is is a must that is a considerable one I would prefer that injected.. Was going to go with MT props, but can be higher if valve or cylinder work is needed globe... Do you know of any companies that endorse the 915iS, computer,! Makes a go around less complex at a low price. the 80 HP version the... 'M an LSRM with a reduction gearbox offering either a Rotax 912iS or 914... Among the fastest of the Rotax 912 series range of engines this was replaced with the 912iSc is smoothest. 2017 10:21 am, Post superstol2019 @ miketiffee.com, Rotaxs initial claims were the! The plane, not here-say or charts placed on your Rotax engine experts felt most this.