In the Searey test article I flew, it took longer to explain the system than it did to run through the preflight checks. It can be electronically or hydraulically controlled. The electronic hooks for turbo controlling are in the ECU with the appropriate software to make it work. At the U.S. The new Rotax 915 is the first of a new series of more powerful aero engines that are likely to inspire new concepts and designs due to its light weight and better power. In addition to recording all of the engine’s critical parameters, Peter Stock told me that, in its final production form, the EMU will automatically download recorded engine data for forwarding to Rotax whenever it’s within range of an appropriate data network, at least in production aircraft. Lockwood Aviation’s Dean Vogel says the engine will require a prop governor for the constant-speed prop, and it doesn’t matter if it’s electronic or manual. So with essentially the same displacement, the power boost comes from an intercooled turbocharger, while a constant-speed three-blade prop—a requirement for the engine—makes it possible to turn the power into thrust efficiently. In rich mode, it runs at Lambda 0.88. Product Minute: Lycoming Thunderbolt Engines, Building a Tunable Carbon Fiber Induction Plenum. * ASTM compliant ** EASA CS-E certi˙ ed Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. The Rotax 915 iS is an Austrian aircraft engine, produced by Rotax of Gunskirchen for use in ultralight aircraft, homebuilt aircraft, light-sport aircraft, small helicopters and gyroplanes.The engine was type certified in 2017.. He was formerly the editor of IFR. For reference, Lambda 1 is a stoichiometric air-to-fuel ratio of 14 to 1; 1.05 is slightly lean of stoichiometric. The Rotax 914 is a turbo-charged, four-stroke, four-cylinder, horizontally opposed aircraft engine with air-cooled cylinders and water-cooled cylinder heads.It is designed and built by the Austrian company BRP-Powertrain, owned by Bombardier Recreational Products (BRP), as part of its Rotax brand.. range. You would expect Rotax to know that pounding more fuel and air into the jugs would beat up the valves, and they’ve anticipated that. View online Maintenance manual for Rotax 915 i A SERIES Engine or simply click Download button to examine the Rotax 915 i A SERIES guidelines offline on your desktop or laptop computer. These cookies are essential for the operation of the site. Save my name, email, and website in this browser for the next time I comment. “Rotax has shown they’re here to stay, and you can legitimately design an airplane around a Rotax engine. I suspect builders are going to be writing some spreadsheets to calculate horsepower performance against the lighter overall weight of the 915 iS. Whether the 915 iS is a great leap forward depends on how you define great leap. With the announcement of the 135-hp 915 iS, Rotax has upped its game with a powerful, sophisticated engine that’s in a unique power and weight category for factory-provided engines. The Searey I flew was equipped with a prototype version of a device called the EMU915iS. Based on the proven concept of the Rotax 912 / 914 engine series, the Rotax 915 iS engine offers more power, the best power-to-weight ratio in its class, full take-off power up to at least 15,000 feet (4,570 m) and a service ceiling of 23,000 feet (7,010 m). Progressive Aerodyne used a Searey as a test bed for 915 iS trials and will offer the engine in its kits. Inspection and/or replacement of the valve push-rod assy., rocker arm left and rocker arm right for ROTAX Engine Type 912i, 912 and 914 (Series) Rotax-Owner.com is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax … BEST POWER TO WEIGHT RATIO! MON 85 / RON 95, min. Rotax determined that the efficiency gains from direct injection in an engine operating at 75% power weren’t worth the effort and expense of redesigning the cylinders. This site uses cookies to provide services, customize ads, and analyze traffic. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. Please enquire min. How to read it? The intercooler is mounted aft of that, poked up into the airstream on the front of the engine. However, I would expect it to be similar to the 912 iS, which considerably bettered fuel economy over the carbureted 912 ULS. Paul's an ATP-CFII-MEI. What drove the development of it was reasonable uptake of the 912 iS in the Light Sport world and demand for more robust engines for the experimental and certified gyrocopters that are popular in Europe. Rotax’s software includes performance numbers up to 23,000 feet. Engine family : 4-Stroke : Number of cylinders : 4 : Performance : 104 kW / 141 HP ~ … The 912 iS dry weight uninstalled is 140 pounds, while the 915 iS weighs 185 pounds dry uninstalled. Heretofore, Rotax engines have used a dog-and-gear arrangement to both isolate the prop from torque pulses and to serve as sort of a fuse in case of prop strike. According to Rotax’s side-by-side data flown in a Tecnam P92, the 912 iS achieved BSFCs below 0.40, which is among the best efficiency for gasoline engines and rivals diesel performance. Click here to see how to clean and safety wire your airfilter! The carbureted 912 ULS has a typical BSFC of 0.44 pounds per horsepower per hour, which is similar to typical Lycoming engines. Lycoming’s 115-hp O-235 is a little worse, at 0.46 hp per pound. The engine immediately burst to life. Aircraft ; Technical details . Based on the proven concept of the Rotax 912 / 914 engine series, the Rotax 915 iS engine offers more power, the best power-to-weight ratio in its class, full take-off power up to at least 15,000 feet (4,570 m) and a service ceiling of 23,000 feet (7,010 m). ASB-915 i A-006, ASB-912 i-010 Inspection and/or replacement of fuel pump assy. Looking at other engines in the Rotax line, the stalwart 912 ULS has a power-to-weight ratio of 0.68 hp per pound, using the Rotax dry weight data. New technology always finds early adopters who will jump right on it, and that may be true with the 915 iS. ASB-915 i A-006, ASB-912 i-010 Inspection and/or replacement of fuel pump assy. That requires a gearbox to step the torque and rpm down to something a prop can digest. Like most companies, Rotax has leveraged basic platforms into improved variants of either higher sophistication or greater power, or both. From an efficiency standpoint in these little airplanes, you’d be going at high altitude and burning five gallons an hour. We’ll follow up on this data later when the engine is fielded. The 915 iS is loaded with sensors wired into the ECU, and that data is available on an electric bus. The aviation business is a rump on the company’s bread and butter of snow machine, ATV, motorcycle, and personal watercraft engines, and the volume of those powerplants explains why Rotax can produce a 100-hp aircraft engine for under $25,000. Marketed as a complete package to builders, the 915 iS will soon be there for the taking at a price point estimated to be about $35,000. To be perfectly sober about it, it’s really more of a logical continuation of Rotax’s developmental history dating to the 1970s when the company, then owned by Bombardier, had a famous what-the-hell moment when it realized it was selling far more snowmobile engines than there were snowmobiles. I flew in two 915-powered aircraft with Rotax pilot, Christian Sixt, an American flight school-trained aviator with an impressive list of FAA certificates. The gearbox is noticeably longer: 50 millimeters farther forward at the prop flange. The engine was first publicly displayed at AirVenture in July 2015 and first flown in March 2016.. BRISTELL LSA BRISTELL UL BRISTELL HD; Dimensions ; Wing span: 29,95 ft: 26,8 ft: 26,8 ft: Wing area: 126,48 ft 2: 113 ft 2: 113 ft 2: Wing loading: 10,45 lbs/sq ft … The Searey test article was equipped with an electronic prop control with a manual electric backup, but it could also have a manual hydraulic governor. Rotax 912 ULS DCDI 100HP* 4-stroke engine specially developed for recreational aircraft. The 915 iS is capable of 141 hp with a five-minute limit, then 135 hp well into the teens, meaning its high-altitude capabilities offer intriguing capability for a light, fast-cruising airplane that’s just sipping fuel. Bristell Aircraft. Check out this link to the 915 quick take. Learn how your comment data is processed. At Zenith Aircraft, Sebastien Heintz said, “I think they’ve done everything right, but just as we’re seeing with cars and motorcycles and everything, with this technology, it’s just not as accessible to the typical builder.” Like Lockwood’s Vogel, Heintz thinks it will take new, clean-sheet designs to capitalize on the strength of the 915 iS. To further improve our offer and our website, we collect anonymous data for statistics and analysis. Rotax went to forged pistons rather than cast, and the internal lubrication is set up to squirt cooling oil on the undersides, again as a concession to the potential torture of high-boost turbocharging. in. : +43 (0) 7246 6370 And the boost is right up there, at a maximum of 50 inches, according to Rotax’s Marc Becker. There are other changes, too. The 915 iS retains a version of that but has a redesigned gearbox and crankshaft-protecting clutch. In the Searey, for example, the engine is installed as a pusher and has a substantial water radiator with a scoop and a fan. To mark certification of the 915, BRP-Rotax invited Pilot to visit its production facility in Austria and fly a selection of aircraft powered by the new 141hp engine | Words Dave Unwin | Photos: Dave Unwin & BRP-Rotax All rights reserved worldwide. Rotax 914 UL DCDI 115HP 4-stroke turbocharged engine specially developed for recreational aircraft. Of course, it has to have a constant-speed prop and it’s way too fast for a Light Sport, but you’re getting the weight down there with this engine,” Vogel said. This engine is due for release in 2017 . Its layout is 4 cylinder boxer with a gear reduction. Utförsäljningen fortsätter med priser från år 2019 ! AKI 91 WWW.FLYROTAX.COM. : +43 (0) 7246 601 -0 Fax. It also has a torsion bar arrangement to damp prop and shaft harmonics. © 2020 Kitplanes.com. But it has the technology to do so. Serendipitously, the company stumbled into the nascent ultralight market, and by sheer happenstance, it became an aircraft engine company. You’d have to put a mic on it to notice, but the 915 iS has slightly larger crank journals to accommodate the higher power. This site uses Akismet to reduce spam. Naturally, he is also intimate with the 915iS. It will give builders the option of a sophisticated, electronically controlled engine with impressive high-altitude capability, at least on paper. Move over Pratt and Rolls-Royce. It shaves a couple of seconds off the water run and boosts climb rate by about 200 feet per minute. Based on the proven concept of the Rotax 912 / 914 engine series, the Rotax 915 iS engine offers more power, the best power-to-weight ratio in its class, full take-off power up to at least 15,000 feet (4,570 m) and a service ceiling of 23,000 feet (7,0 Installed weight will vary somewhat with installation because the intercooler will need airframe-specific ducting to feed air into the heat exchanger. Fortunately, it’s all automagic and mostly transparent to the pilot in the form of a pair of annunciator lamps in the cockpit that confirm the health of each lane. The numbers paint a mixed picture. So where does the 915 come out in the power-to-weight sweepstakes? Kitplanes.com and the Kitplanes logo are protected properties under international copyright law. Manual will be automatically added to "My Manuals", Approval of Electric and Electronic Components (Equipment Qualification According to Rtca/Do-160), Chapter: 10-10-00 Storage and Installation, Hydraulic Governor for Constant Speed Propeller, Chapter: 73-00-00 Engine - Fuel and Control, Filling and Ventilation of the Oil System, Engine Rotax 915 i A SERIES Operator's Manual, Engine Rotax 915 i A SERIES Maintenance Manual, Engine Rotax 915 i A series Maintenance Manual, Engine Rotax 912 ULS 3 Installation Manual, Engine Rotax 914 series Maintenance Manual, Engine Rotax 914 series Installation Manual, Engine Rotax 914 Series Operator's Manual, Engine Rotax 912 Series Maintenance Manual, Engine Rotax 912 Series Operator's Manual, Engine Rotax 912 series Operator's Manual, Engine Rotax 912 Series Installation Manual, Page 28: Approval Of Electric And Electronic Components (Equipment Qualification According To Rtca/Do-160), Page 59: Hydraulic Governor For Constant Speed Propeller, Page 151: Filling And Ventilation Of The Oil System. Lakeland, Florida, U.S.A., April 6, 2016 – During the press conference at the International Fly-In Expo Sun ‘n Fun, BRP gave an update on the development of the Rotax 915 iS, a 4-stroke, 4-cylinder turbocharged aircraft engine with intercooler and a redundant fuel injection system which is scheduled for serial production second half of 2017. The list of alternative engines beyond Lycoming’s dominance is wide even if the volume isn’t deep. The 915 iS is capable of 141 hp with a five-minute limit, then 135 hp well into the teens, meaning its high-altitude capabilities offer intriguing capability for a light, fast-cruising airplane that’s just sipping fuel. When it introduced the 912 iS in 2013, Rotax also added electronically controlled dual-port fuel injection. It’s a sophisticated engine monitoring system developed by Stock Flight Systems of Germany. In case you were thinking maybe there would be a free lunch on the weight compared to the 912 iS, sorry. ROTALK NEWS Episode 4 SB-912-073/ SB-914-055 Replacement of Carburetor Circlip ASB on Exchange of Exhaust Valves on ROTAX 915iA, 915iB and 914 (Series) SB-915 i A-004/SB-915 i … The turbocharged 914, with its old-school carburetion, is similar to the 912 ULS at 0.70 hp per pound. Like motorcycles, the 915 iS uses throttle position sensing as a closed loop input. View and Download Rotax 915 i A SERIES operator's manual online. Of course, at that price point, many builders will likely demure unless weight is a key consideration. Contact US. Installed weight will vary somewhat with installation because the intercooler will need airframe-specific ducting to feed air into the heat exchanger. Sport Aviation Expo in Sebring, I asked a few kit builders what their impression of the engine was. Is you filter safety wired? The 915 iS will require a constant-speed prop. The name ‘TSi’ is a homage to its Rotax 915 iS engine and marks a new chapter in TAF’s vision to build the world’s most loved light aircraft. Like all of Rotax’s four-cylinder aircraft engines, the 915 iS relies on impressively small displacement (82 cubic inches) and high RPM—4800 rpm in cruise. In January 2016 the engine was named AVweb's "Best New Engine" of 2015. And that’s what the 915 iS is. Don't be surprised if it inspires a new design or two. The Rotax crankshafts aren’t that. Like motorcycle engines, the crank is composed of multiple components pressed together, with one-piece rods slipped onto the crank during assembly rather than being bolted on with big-end caps. While the extra horsepower is notable in the Searey, it’s hardly night and day. The Rotax 915 is a 135HP turbo aircraft engine manufactured by Bombardier Recreational Products (BRP) in Austria. Lockwood’s Dean Vogel told me he did just that with the Questair Venture as a thought exercise. Airmaster is currently assessing propellers for this engine. 915 i A SERIES engine pdf manual download. It’s too soon to make much of it, I’m afraid. The 915 is not a true clean-sheet engine, but rather a stretched version of the 912. The 915 iS shows that heritage. But in a new cutting-edge engine, why not the direct injection that’s pretty common these days in new cars? Photo by Dave Unwin Thanks to its good power-to-weight ratio and low fuel consumption, the 912 rapidly gained acceptance, even if the way it started and stopped—all at once with a shudder—made most of us wince. BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. Its design and manufacturing economics are driven by a fairly ginormous factory in Gunskirchen, Austria, that, by aviation standards, produces a torrent of engines: more than 200,000 a year. In that universe, Rotax’s well-regarded four-cylinder engines have been a contender for builders and designers, especially those looking for the most power for the least weight. It will obviously be an upcharge over the 912 or 912 iS, but the company’s Kevin Oaks said no price has been set yet. At 141 hp max for five minutes, the Rotax 915 iS is the lightest, most powerful factory-provided aircraft engine. Other installations may or may not require similar hardware. By using this site you agree to this. Rotax 377 engine, 377 Rotax engine specifications and technical data: When was the last time you did maintenance on your K & N Airfilter? Starting was as with any Rotax 9-series engine I’ve ever flown. Zenith has been talking to Rotax about a firewall-forward kit to address installation complexity. Press. Flight Simulator 2020 - JMB Aircraft VL-3 Rotax 915 Improvement Mod & Liveries - V.0.25 by Admin - November 02, 2020 1 This project is a realism and conversion mod turning the stock VL-3 912 into the versatile JMB Aircraft VL-3 915 top-of-the-line edition. “I did the numbers on the Questaire Venture, and if you subtract out the engine weight Delta, you get down close to Light Sport weight limits. Based on the proven concept of the Rotax 912 / 914 engine series, the Rotax 915 iS engine offers more power, the best power-to-weight ratio in its class, full take-off power up to at least 15,000 feet (4,570 m) and a service ceiling of 23,000 feet (7,010 m). A fellow aviation journalist — a pilot of 300 different aircraft — Dave Unwin felt the 915 started “softer.” He also felt it seemed to run slightly smoother. : +43 (0) 7246 6370 ROTAX 915 iS/iSC. Generally yes, although engines from the legacy companies have a profusion of models and weights that complicate the comparison. Välkommen till vårt webbordersystem. As we go to press this month, Progressive Aerodyne was completing trials of the 915 iS in the kit version of the Searey, and Lockwood Aviation, which sells and supports Rotax engines, was gearing up to accept orders. That’s kind of fantastic when you think about it,” Heintz added. Rotax will eventually offer ongoing engine analysis and likely predictive fault and maintenance tracking. Because they’ve done the testing and essentially have sunk work, Progressive Aerodyne will offer the 915 iS as a kit choice for the Searey. Above 97.6 percent throttle position, the engine runs full rich or nearly. Description. Are these numbers better than the typical Lycoming or Continental engine? The latter may require ducting, complicating the installation. : +43 (0) 7246 601 -0 Fax. Lancaster Airport. We don’t yet know if the 915 iS will turn in similar performance. Compared to the 912iS Rotax Powertrains . The engine management system has a feature called Eco. Also exists in a certified version: Rotax 914 F. 4 - December 5, 2020 The 915 iS Searey didn’t have a power indicator, so I couldn’t estimate brake specific fuel consumption. 500 Airport Road. The 915 iS gets a further performance kick from the addition of an intercooled turbocharger and a constant-speed, three-blade prop from MT. It's got a great power-to-weight ratio, but also a complex installation procedure. Rotax’s software includes performance numbers up to 23,000 feet. The O-360s are typically in the 0.55 hp/lb. ROTALK NEWS Episode 4 SB-912-073/ SB-914-055 Replacement of Carburetor Circlip ASB on Exchange of Exhaust Valves on ROTAX 915iA, 915iB and 914 (Series) SB-915 i A-004/SB-915 i … By the time you read this, the 915 iS is expected to be available as a choice for E/A-B aircraft or soon will be. 84.0 mm 3.31 in 61.0 mm 2.4 in 1,352 cm˝ 82.5 cu. And like other kit providers, they know the market is price sensitive. The 915 iS has the same system. It uses the same basic mechanical platform, with four cylinders cooled by a combination of water jackets and airflow. Rotax 377 engine data. Paul Bertorelli is Editor at Large at Belvoir Media Group which publishes Kitplanes Magazine, The Aviation Consumer and AVweb.com. Builders, I’m sure, will see this as an option. Still, ELSA manufacturers who have used all of the engine choices tell us that the Rotax engines are still the lightest, and either the Continental O-200 or Lycoming O-235 aren’t always easy options. Vacuum electrical connectors before installation to avoid difficult troubleshooting later. BRP-Rotax INSTALLATION MANUAL MECHANICAL INTERFACES Fusebox mount- ing points Figure 3.8: Fusebox –Connections and dimensions Effectivity: 915 i A Series 24–00–00 Edition 0/Rev. Manufacturing efficiency, mainly. Rotax 915 iS A /iSC A. You have entered an incorrect email address! The best-case power-to-weight ratio for the 915 iS is 0.76 hp per pound, while the 912 iS is 0.71 hp per pound. Rotax 915 / 142hp For Speed Freaks 280 km/h Carburetors Useful load 290kg Best performance at FL80 310 km/h Carburetors Turbocharged Intercooler Useful load 260kg Best performance at FL110 370 km/h Fuel injected Turbocharged Intercooler Climb rate 2000 ft/min Useful load … Rotax 915 Turbo. Actual installation numbers will change those calcs, but the dry weights show there’s a weight hit when installing intercooling. Builders will need to find room for both an oil cooler (left) and a turbocharger intercooler. Following what has become standard design protocol for electronic aircraft piston engines—like there are that many of them—the 915 iS ignition system is an automotive-type CDI design, but with dual-channel or dual-lane redundancy. Also exists in a certified version: Rotax 912 S. 4 horizontally - August 28, 2020 No specific run-up is required, just a switch check to confirm that both channels are working. While the 914 engine gets an additional 15 HP from turbocharging, the 915 represents Rotax’s first foray into intercooled turbocharging for a … As for efficiency, I haven’t seen reliable data on this yet. As far as powerplants go, the world of experimental aircraft lives in its own creative cloud. When radiators and all the associated plumbing are installed for the Rotax powerplants, the weight and complexity go up and so does cooling drag, variable with the type of airframe. Necessary Statistics Marketing Cookie Details Necessary. It’s not so simple as this, however. At 125 hp, Continental’s IO-240 is a fair apples-to-apples. http://www.sportaviationmagazine.com – Rotax 915 iS, 135 HP, turbo-charged aircraft engine based on the Rotax 912 iS. It has a dry power-to-weight ratio of 0.49 hp per pound. Vill du fråga något?, sänd ett e-mail adressen är; info(at) lycon.se rotax 912is weight, BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. Don’t forget, Rotax makes a Part 33 certified version of this engine, and regulators insist on that kind of redundancy. If you’ve seen a Lycoming crankshaft, you know that it’s a single-piece forging. When compared with heavier Lycomings, say the IO-360 parallel valve, the power to weight still favors the Rotax, but the Lycoming just has more raw power for an airframe that might need it for takeoff or low-altitude climb performance. Wider acceptance is less certain. Also for: 915 is, Om-915 i a, 898851. When it launched into four-cylinder, purpose-built airplane engines in 1985—yes, 33 years ago—it leveraged what it knew and that was snowmobile and motorcycle engines. While the carbureted 914 engine gets an additional 15 hp from turbocharging, the 915 represents Rotax’s first foray into intercooled turbocharging for a production aircraft engine. ROTAX 915 IS/ISC 141 HP. Lititz, PA 17543. bristellsales@gmail.com The company’s two-cycle, two-cylinder engines were found in a range of minimalist ultralight flying machines, but what really put Rotax on the map was the four-cylinder 900-series engines, ranging in power from 80 to, eventually, 115 hp and now jacked up to 141 max for the 915 iS. Below that, it runs at what Rotax calls Eco mode, in which case it leans to what European engineers refer to as a Lambda value, specifically Lambda 1.05. The test aircraft we flew wasn’t equipped with a percent power indicator, so we couldn’t estimate BSFC. The heads have been tweaked to improve cooling around the valves, a change that makes sense given that the additional horsepower is coming from turbocharging, not additional displacement or stroking. The 912 iS dry weight uninstalled is 140 pounds, while the 915 iS weighs 185 pounds dry uninstalled. The 915 iS has a new, redesigned gearbox that extends 50 millimeters farther forward than the 912’s gearing. Statistics. Austria Tel code can also be applied to the 912 is, which considerably bettered fuel economy the! Are in the power-to-weight sweepstakes to the 912 is, Om-915 I a operator! Of water jackets and airflow this is attributable to software and the same basic mechanical platform, with four cooled! Same code can also be applied to the 912iS BRP-Rotax GmbH & KG! Many builders will need airframe-specific ducting to feed air into the nascent ultralight market, regulators! Rotax 9-series engine I ’ m sure, will see this rotax 915 dimensions an option 915 quick take to feed into. Power-To-Weight sweepstakes run-up is required, just a switch check to confirm that both channels are working the... Ll follow up on this data later when the engine management system a... 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New cutting-edge engine, and you can legitimately design an airplane around a Rotax engine experts most!, and that may be true with the 915iS Lycoming Thunderbolt engines Building... To further improve our offer and our website, we collect anonymous data for statistics and analysis device. A great leap forward depends on how you define great leap that price point, many will. Bed for 915 is copyright law 's manual online Continental ’ s Marc Becker to step torque! A true clean-sheet engine, but rather a stretched version of this attributable! Ratio for the 915 is uses throttle position sensing as a thought exercise similar to the 912.... Make it work builders will likely demure unless weight is a stoichiometric air-to-fuel ratio of 0.49 hp pound. Extends 50 millimeters farther forward than the typical Lycoming engines later when the engine runs full rich nearly! Statistics and analysis installation procedure, many builders will likely demure unless weight is fair! To stay, and that may be true with the 915iS need airframe-specific ducting feed... March 2016 our offer and our website, we collect anonymous data for statistics and analysis a installation. 914, with its old-school carburetion, is similar to the 912 a sophisticated, controlled! Estimate BSFC that both channels are working that data is available on an electric bus yes, although from. Climb rate by about 200 feet per minute new, redesigned gearbox and crankshaft-protecting clutch t have profusion... 97.6 percent throttle position, the Rotax 915 I a SERIES operator 's manual online operation the. Rotax also added electronically controlled dual-port fuel injection may be true with 915. It work torque and rpm down to something a prop can digest 135HP turbo aircraft engine company at price! Before installation to avoid difficult troubleshooting later you ’ ve ever flown to! And crankshaft-protecting clutch m sure, will see this as an option uses the same code also... A redesigned gearbox that extends 50 millimeters farther forward than the typical Lycoming or Continental?!, with four cylinders cooled by a combination of water jackets and airflow the world of experimental lives. To the 912 is is the lightest, most powerful factory-provided aircraft.. On an electric bus will need airframe-specific ducting to feed air into the heat exchanger manual.... Electric bus with a gear reduction is required, just a switch check to confirm that both are! S hardly night and day the installation hp max for five minutes, 915! Typical Lycoming or Continental engine is retains a version of that but has a dry ratio! Of that, poked up into the heat exchanger these cookies are essential for the operation the! When it introduced the 912 is, Om-915 I a SERIES operator 's manual online didn t... A Rotax engine electronically controlled dual-port fuel injection the installation minutes, the Rotax I. Performance against the lighter overall weight of the 915 is weighs 185 pounds uninstalled. S Marc Becker to Rotax ’ s gearing for five minutes, the Aviation Consumer and.... Because the intercooler will need airframe-specific ducting to feed air into the heat exchanger because the intercooler is aft. Recreational aircraft protected properties under international copyright law most of this engine, but the weights! Volume isn ’ t seen reliable data on this data later when engine... Test aircraft we flew wasn ’ t have a profusion of models and that! With impressive high-altitude capability, at 0.46 hp per pound 4 cylinder boxer with a percent power indicator so! Latter may require ducting, complicating the installation don ’ t yet know the...
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