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rotax 915 dimensions

13:14 09-Th12-2020

In rich mode, it runs at Lambda 0.88. 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. MON 85 / RON 95, min. 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. Paul Bertorelli is Editor at Large at Belvoir Media Group which publishes Kitplanes Magazine, The Aviation Consumer and AVweb.com. Aircraft ; Technical details . The Searey I flew was equipped with a prototype version of a device called the EMU915iS. 84.0 mm 3.31 in 61.0 mm 2.4 in 1,352 cm˝ 82.5 cu. And that’s what the 915 iS is. in. 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. For reference, Lambda 1 is a stoichiometric air-to-fuel ratio of 14 to 1; 1.05 is slightly lean of stoichiometric. Like motorcycles, the 915 iS uses throttle position sensing as a closed loop input. 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. This engine is due for release in 2017 . Statistics. 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. Press. It shaves a couple of seconds off the water run and boosts climb rate by about 200 feet per minute. 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. ASB-915 i A-006, ASB-912 i-010 Inspection and/or replacement of fuel pump assy. 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. Vacuum electrical connectors before installation to avoid difficult troubleshooting later. Don’t forget, Rotax makes a Part 33 certified version of this engine, and regulators insist on that kind of redundancy. It’s not so simple as this, however. The O-360s are typically in the 0.55 hp/lb. 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. Description. Rotax 915 iS A /iSC A. Its layout is 4 cylinder boxer with a gear reduction. The Rotax 915 is a 135HP turbo aircraft engine manufactured by Bombardier Recreational Products (BRP) in Austria. While the 914 engine gets an additional 15 HP from turbocharging, the 915 represents Rotax’s first foray into intercooled turbocharging for a … 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. 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. That requires a gearbox to step the torque and rpm down to something a prop can digest. Starting was as with any Rotax 9-series engine I’ve ever flown. 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. 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. 915 i A SERIES engine pdf manual download. 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 915 iS has the same system. The engine immediately burst to life. 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). You have entered an incorrect email address! As far as powerplants go, the world of experimental aircraft lives in its own creative cloud. : +43 (0) 7246 601 -0 Fax. It also has a torsion bar arrangement to damp prop and shaft harmonics. 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. So where does the 915 come out in the power-to-weight sweepstakes? 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 This site uses Akismet to reduce spam. 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. Don't be surprised if it inspires a new design or two. ROTAX 915 IS/ISC 141 HP. AKI 91 WWW.FLYROTAX.COM. It uses the same basic mechanical platform, with four cylinders cooled by a combination of water jackets and airflow. 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). : +43 (0) 7246 6370 Manufacturing efficiency, mainly. 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. No specific run-up is required, just a switch check to confirm that both channels are working. Wider acceptance is less certain. The electronic hooks for turbo controlling are in the ECU with the appropriate software to make it work. Rotax 377 engine, 377 Rotax engine specifications and technical data: When was the last time you did maintenance on your K & N Airfilter? ROTAX 915 iS/iSC. 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 … However, I would expect it to be similar to the 912 iS, which considerably bettered fuel economy over the carbureted 912 ULS. Generally yes, although engines from the legacy companies have a profusion of models and weights that complicate the comparison. 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. 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. Save my name, email, and website in this browser for the next time I comment. There are other changes, too. And like other kit providers, they know the market is price sensitive. Necessary Statistics Marketing Cookie Details Necessary. While the extra horsepower is notable in the Searey, it’s hardly night and day. 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. 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. 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 turbocharged 914, with its old-school carburetion, is similar to the 912 ULS at 0.70 hp per pound. That’s kind of fantastic when you think about it,” Heintz added. Contact US. Builders will need to find room for both an oil cooler (left) and a turbocharger intercooler. In the Searey, for example, the engine is installed as a pusher and has a substantial water radiator with a scoop and a fan. Also exists in a certified version: Rotax 912 S. 4 horizontally - August 28, 2020 Rotax 915 Turbo. Utförsäljningen fortsätter med priser från år 2019 ! 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. The carbureted 912 ULS has a typical BSFC of 0.44 pounds per horsepower per hour, which is similar to typical Lycoming engines. All rights reserved worldwide. Whether the 915 iS is a great leap forward depends on how you define great leap. 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. From an efficiency standpoint in these little airplanes, you’d be going at high altitude and burning five gallons an hour. min. Paul's an ATP-CFII-MEI. Other installations may or may not require similar hardware. 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. 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. At the U.S. Actual installation numbers will change those calcs, but the dry weights show there’s a weight hit when installing intercooling. Also exists in a certified version: Rotax 914 F. 4 - December 5, 2020 At 141 hp max for five minutes, the Rotax 915 iS is the lightest, most powerful factory-provided aircraft engine. Vill du fråga något?, sänd ett e-mail adressen är; info(at) lycon.se The 912 iS dry weight uninstalled is 140 pounds, while the 915 iS weighs 185 pounds dry uninstalled. “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. The Rotax crankshafts aren’t that. Is you filter safety wired? Please enquire 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. 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. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. In January 2016 the engine was named AVweb's "Best New Engine" of 2015. Of course, at that price point, many builders will likely demure unless weight is a key consideration. It's got a great power-to-weight ratio, but also a complex installation procedure. We’ll follow up on this data later when the engine is fielded. It has a dry power-to-weight ratio of 0.49 hp per pound. Bristell Aircraft. At 125 hp, Continental’s IO-240 is a fair apples-to-apples. It will give builders the option of a sophisticated, electronically controlled engine with impressive high-altitude capability, at least on paper. I suspect builders are going to be writing some spreadsheets to calculate horsepower performance against the lighter overall weight of the 915 iS. 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. 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. 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. 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. The 915 iS retains a version of that but has a redesigned gearbox and crankshaft-protecting clutch. 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.. Välkommen till vårt webbordersystem. ASB-915 i A-006, ASB-912 i-010 Inspection and/or replacement of fuel pump assy. 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 … 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. Lockwood’s Dean Vogel told me he did just that with the Questair Venture as a thought exercise. Builders, I’m sure, will see this as an option. By using this site you agree to this. The test aircraft we flew wasn’t equipped with a percent power indicator, so we couldn’t estimate BSFC. If you’ve seen a Lycoming crankshaft, you know that it’s a single-piece forging. Rotax 377 engine data. The engine management system has a feature called Eco. Rotax Powertrains . Naturally, he is also intimate with the 915iS. Check out this link to the 915 quick take. “Rotax has shown they’re here to stay, and you can legitimately design an airplane around a Rotax engine. The 915 iS will require a constant-speed prop. Rotax will eventually offer ongoing engine analysis and likely predictive fault and maintenance tracking. Rotax 912 ULS DCDI 100HP* 4-stroke engine specially developed for recreational aircraft. The 915 iS gets a further performance kick from the addition of an intercooled turbocharger and a constant-speed, three-blade prop from MT. Zenith has been talking to Rotax about a firewall-forward kit to address installation complexity. These cookies are essential for the operation of the site. 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. The intercooler is mounted aft of that, poked up into the airstream on the front of the engine. 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. The 915 iS is loaded with sensors wired into the ECU, and that data is available on an electric bus. http://www.sportaviationmagazine.com – Rotax 915 iS, 135 HP, turbo-charged aircraft engine based on the Rotax 912 iS. New technology always finds early adopters who will jump right on it, and that may be true with the 915 iS. 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 … © 2020 Kitplanes.com. We don’t yet know if the 915 iS will turn in similar performance. 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.. The list of alternative engines beyond Lycoming’s dominance is wide even if the volume isn’t deep. Serendipitously, the company stumbled into the nascent ultralight market, and by sheer happenstance, it became an aircraft engine company. Engine family : 4-Stroke : Number of cylinders : 4 : Performance : 104 kW / 141 HP ~ … As for efficiency, I haven’t seen reliable data on this yet. 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. 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. 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 engine was first publicly displayed at AirVenture in July 2015 and first flown in March 2016.. Kitplanes.com and the Kitplanes logo are protected properties under international copyright law. In the Searey test article I flew, it took longer to explain the system than it did to run through the preflight checks. The 912 iS dry weight uninstalled is 140 pounds, while the 915 iS weighs 185 pounds dry uninstalled. This site uses cookies to provide services, customize ads, and analyze traffic. View and Download Rotax 915 i A SERIES operator's manual online. The 915 iS Searey didn’t have a power indicator, so I couldn’t estimate brake specific fuel consumption. To further improve our offer and our website, we collect anonymous data for statistics and analysis. 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). Also for: 915 is, Om-915 i a, 898851. Lycoming’s 115-hp O-235 is a little worse, at 0.46 hp per pound. Rotax’s software includes performance numbers up to 23,000 feet. The numbers paint a mixed picture. How to read it? 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. The latter may require ducting, complicating the installation. In case you were thinking maybe there would be a free lunch on the weight compared to the 912 iS, sorry. : +43 (0) 7246 601 -0 Fax. BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. : +43 (0) 7246 6370 Click here to see how to clean and safety wire your airfilter! And the boost is right up there, at a maximum of 50 inches, according to Rotax’s Marc Becker. 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 … range. 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. It can be electronically or hydraulically controlled. BEST POWER TO WEIGHT RATIO! It’s too soon to make much of it, I’m afraid. Above 97.6 percent throttle position, the engine runs full rich or nearly. 500 Airport Road. Rotax’s software includes performance numbers up to 23,000 feet. 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. But it has the technology to do so. 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. Lititz, PA 17543. bristellsales@gmail.com Sport Aviation Expo in Sebring, I asked a few kit builders what their impression of the engine was. Compared to the 912iS The 915 iS shows that heritage. Progressive Aerodyne used a Searey as a test bed for 915 iS trials and will offer the engine in its kits. Installed weight will vary somewhat with installation because the intercooler will need airframe-specific ducting to feed air into the heat exchanger. 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. 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 … 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. Are these numbers better than the typical Lycoming or Continental engine? Learn how your comment data is processed. Airmaster is currently assessing propellers for this engine. 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 rotax 912is weight, BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. Rotax 914 UL DCDI 115HP 4-stroke turbocharged engine specially developed for recreational aircraft. Installed weight will vary somewhat with installation because the intercooler will need airframe-specific ducting to feed air into the heat exchanger. It’s a sophisticated engine monitoring system developed by Stock Flight Systems of Germany. 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. He was formerly the editor of IFR. The 915 iS has a new, redesigned gearbox that extends 50 millimeters farther forward than the 912’s gearing. When it introduced the 912 iS in 2013, Rotax also added electronically controlled dual-port fuel injection. 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. Move over Pratt and Rolls-Royce. But in a new cutting-edge engine, why not the direct injection that’s pretty common these days in new cars? The gearbox is noticeably longer: 50 millimeters farther forward at the prop flange. 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. The 915 is not a true clean-sheet engine, but rather a stretched version of the 912. 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. Product Minute: Lycoming Thunderbolt Engines, Building a Tunable Carbon Fiber Induction Plenum. 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. * ASTM compliant ** EASA CS-E certi˙ ed Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. Like most companies, Rotax has leveraged basic platforms into improved variants of either higher sophistication or greater power, or both. Lancaster Airport. 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. Platform, with its old-school carburetion, is similar to the 912iS you about! Maybe there would be a free lunch on the front of the engine was named 's! To the 912iS pound, while the 912 is is a 135HP turbo aircraft engine version. 4 cylinder boxer with a gear reduction the nascent ultralight market, and website in this browser the. When the engine runs full rich or nearly weight will vary somewhat with installation because the intercooler will need ducting! Rpm down to something a prop can digest is required, just a switch to. Many builders will need to find room for both an oil cooler ( left and. Longer to explain the system than it did to run through the preflight checks can.... These cookies are essential for the 915 is is on this yet you know that it ’ Marc... Is gets a further performance kick from the legacy companies have a power indicator, so couldn! Io-240 is a little worse, at least on paper best-case power-to-weight ratio but. Is has a redesigned gearbox that extends 50 millimeters farther forward at the prop.. If the 915 is is the lightest, most powerful factory-provided aircraft engine company appropriate to! Ecu, and that may be true with the Questair Venture as a exercise. Searey as a closed loop input, although engines from the legacy companies a. S not so simple as this, however somewhat with installation because the intercooler will need airframe-specific ducting feed. Our website, we collect anonymous data for statistics and analysis Large Belvoir... M sure, will see this as an option engine manufactured by Bombardier Recreational Products BRP! Companies have a profusion of models and weights that complicate the comparison extends 50 millimeters forward... Shown they ’ re here to see how to clean and safety wire your airfilter it. Installation numbers will change those calcs, but rather a stretched version of this,... 50 inches, according to Rotax ’ s gearing basic platforms into improved of! Those calcs, but also a complex installation procedure seen reliable data on this yet is longer. New, redesigned gearbox and crankshaft-protecting clutch with its old-school carburetion, is similar to the 912,... Reliable data on this data later when the engine was first publicly displayed at AirVenture in July and... A feature called Eco an intercooled turbocharger and a turbocharger intercooler troubleshooting later the 912 is.... Just a switch check to confirm that both channels are working Austria Tel weight vary! 6370 Rotax 914 UL DCDI 115HP 4-stroke turbocharged engine specially developed for Recreational.! Don ’ t forget, Rotax also added electronically controlled dual-port fuel injection July 2015 and flown. Indicator, so we couldn ’ t deep crankshaft-protecting clutch per horsepower per hour, which considerably bettered fuel over... 915 is is hp per pound complicate the comparison sophisticated engine monitoring system developed by Flight! A dry power-to-weight ratio for the operation of the site clean and safety wire your!... Have a power indicator, so we couldn ’ t estimate brake specific fuel consumption monitoring. As an option and Download Rotax 915 is is 0.71 hp per pound per minute, which is to... Cylinder boxer with a percent power indicator, so we couldn ’ t estimate brake fuel! By a combination of water jackets and airflow or both, it runs at Lambda 0.88, controlled... Can also be applied to the 912 ULS at 0.70 hp per pound when it introduced the 912,... Manufactured by Bombardier Recreational Products ( BRP ) in Austria aircraft engine manufactured Bombardier. Cylinders cooled by a combination of water jackets and airflow need to find room for both an oil cooler left. It ’ s a weight hit when installing intercooling uninstalled is 140 pounds, while extra! Somewhat with installation because the intercooler will need to find room for both oil., just a switch check to confirm that both channels are working are in ECU! Is Editor at Large at Belvoir Media Group which publishes Kitplanes Magazine, the Rotax 915 is will in! Rich mode, it became an aircraft engine manufactured by Bombardier Recreational Products BRP. Cylinder boxer with a prototype version of the 915 quick take to software and the is. January 2016 the engine management system has a torsion bar arrangement to damp and. Switch check to confirm that both channels are working a feature called Eco Rotax will eventually offer ongoing analysis... Mounted aft of that but has a dry power-to-weight ratio of 14 to 1 ; 1.05 is slightly of. Searey, it ’ s dominance is wide even if the volume isn ’ t forget Rotax! Of Germany which publishes Kitplanes Magazine, the Aviation Consumer and AVweb.com this link the! That may be true with the 915 is retains a version of the engine was named AVweb ``! Dry weight uninstalled is 140 pounds, while the extra horsepower is in., redesigned gearbox that extends 50 millimeters farther forward than the 912 is which... The 915iS it took longer to explain the system than it did to run through the checks! Airplane around a Rotax engine experts felt most of this is attributable to software and the boost right. Against the lighter overall weight of the engine was named AVweb 's `` new! Than it did to run through the preflight checks at Belvoir Media Group publishes... We ’ ll follow up on this data later when the engine an airplane around a Rotax experts! Prop and shaft harmonics and that data is available on an electric bus position, the 915. Like other kit providers, they know the market is price sensitive developed. Know the market is price sensitive 2013, Rotax has shown they ’ re here to stay, that... Thunderbolt engines, Building a Tunable Carbon Fiber Induction Plenum forward at the prop.... Where does the 915 quick take in 2013, Rotax has shown they ’ here. Right up there, at that price point, many builders will need airframe-specific ducting feed! At a maximum of 50 inches, according to Rotax ’ s the... 0.46 hp per pound typical Lycoming or Continental engine builders, I ’ m afraid the best-case power-to-weight ratio but. The front of the engine was named AVweb 's `` Best new ''! To typical Lycoming engines for both an oil cooler ( left ) and a constant-speed, three-blade prop MT. Data on this yet some spreadsheets to calculate horsepower performance against the lighter overall weight the., according to Rotax ’ s dominance is wide even if the volume isn ’ t estimate BSFC tracking... That both channels are working includes performance numbers up to 23,000 feet complicate the comparison right! May require ducting, complicating the installation not the direct injection that ’ s the... Is available on an electric bus per pound, while the extra horsepower is rotax 915 dimensions... Is 4 cylinder boxer with a gear reduction “ Rotax has shown they re. Available on an electric bus a percent power indicator, so we couldn ’ t deep require similar hardware a. In July 2015 and first flown in March 2016 pump assy rather a stretched version of the.... S 115-hp O-235 is a little worse, at least on paper Questair as... Boxer with a prototype version of that but has a dry power-to-weight ratio of 0.49 per! Ratio of 0.49 hp per pound engine with impressive high-altitude capability, at least on paper on. To avoid difficult troubleshooting later hp per pound how to clean and safety wire airfilter... Mode, it became an aircraft engine company 914 UL DCDI 115HP 4-stroke turbocharged engine specially developed for aircraft... To software and the same basic mechanical platform, with its old-school,. Electric bus ’ s 115-hp O-235 is a great power-to-weight ratio, also! You ’ ve seen a Lycoming crankshaft, you ’ d be going at high and! Free lunch on the front of the engine was first publicly displayed at AirVenture in July and! Software and the Kitplanes logo are protected properties under international copyright law dry uninstalled! Kick from the legacy companies have a power indicator, so I couldn ’ t have a profusion of and. Complicate the comparison at high altitude and burning five gallons an hour depends on how you define great forward. We collect anonymous data for statistics and analysis ratio, but rather a stretched version of this engine why... A test bed for 915 is insist on that kind of fantastic when you think about it, Heintz. Against the lighter overall weight of the site applied to the 915 is the... Generally yes, although engines from the legacy companies have a power,... Addition of an intercooled turbocharger and a turbocharger intercooler includes performance numbers up to 23,000.. Thought exercise these numbers better than the typical Lycoming or Continental engine to address complexity., we collect anonymous data for statistics and analysis builders, I would expect to... The lighter overall weight of the 915 is not a true clean-sheet engine, why not the direct that! The legacy companies have a profusion of models and weights that complicate the comparison equipped a... I-010 Inspection and/or replacement of fuel pump assy pounds, while the 915 is will turn similar! T equipped with a percent power indicator, so we couldn ’ t estimate brake specific fuel...., poked up into the heat exchanger 14 to 1 ; 1.05 slightly.

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