rotax 915 dimensions

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. While the extra horsepower is notable in the Searey, it’s hardly night and day. View and Download Rotax 915 i A SERIES operator's manual online. Paul's an ATP-CFII-MEI. : +43 (0) 7246 601 -0 Fax. 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. To further improve our offer and our website, we collect anonymous data for statistics and analysis. 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 … It also has a torsion bar arrangement to damp prop and shaft harmonics. Wider acceptance is less certain. 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. The intercooler is mounted aft of that, poked up into the airstream on the front of the engine. For reference, Lambda 1 is a stoichiometric air-to-fuel ratio of 14 to 1; 1.05 is slightly lean of stoichiometric. In the Searey test article I flew, it took longer to explain the system than it did to run through the preflight checks. The 915 iS has a new, redesigned gearbox that extends 50 millimeters farther forward than the 912’s gearing. 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. Välkommen till vårt webbordersystem. Kitplanes.com and the Kitplanes logo are protected properties under international copyright law. The 915 iS has the same system. Generally yes, although engines from the legacy companies have a profusion of models and weights that complicate the comparison. BEST POWER TO WEIGHT RATIO! 84.0 mm 3.31 in 61.0 mm 2.4 in 1,352 cm˝ 82.5 cu. Don't be surprised if it inspires a new design or two. 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. 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.. Vacuum electrical connectors before installation to avoid difficult troubleshooting later. In case you were thinking maybe there would be a free lunch on the weight compared to the 912 iS, sorry. Builders, I’m sure, will see this as an option. 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. Bristell 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. You have entered an incorrect email address! The 915 iS Searey didn’t have a power indicator, so I couldn’t estimate brake specific fuel consumption. 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. Whether the 915 iS is a great leap forward depends on how you define great leap. When it introduced the 912 iS in 2013, Rotax also added electronically controlled dual-port fuel injection. 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. 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. Rotax 377 engine, 377 Rotax engine specifications and technical data: When was the last time you did maintenance on your K & N Airfilter? Installed weight will vary somewhat with installation because the intercooler will need airframe-specific ducting to feed air into the heat exchanger. That’s kind of fantastic when you think about it,” Heintz added. 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. Rotax engine experts felt most of this is attributable to software and the same code can also be applied to the 912iS. The 915 iS shows that heritage. AKI 91 WWW.FLYROTAX.COM. The 915 iS will require a constant-speed prop. Rotax’s software includes performance numbers up to 23,000 feet. Lockwood’s Dean Vogel told me he did just that with the Questair Venture as a thought exercise. Builders will need to find room for both an oil cooler (left) and a turbocharger intercooler. It's got a great power-to-weight ratio, but also a complex installation procedure. The electronic hooks for turbo controlling are in the ECU with the appropriate software to make it work. But in a new cutting-edge engine, why not the direct injection that’s pretty common these days in new cars? Press. ROTAX 915 iS/iSC. That requires a gearbox to step the torque and rpm down to something a prop can digest. Vill du fråga något?, sänd ett e-mail adressen är; info(at) lycon.se And the boost is right up there, at a maximum of 50 inches, according to Rotax’s Marc Becker. The O-360s are typically in the 0.55 hp/lb. 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. 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). The gearbox is noticeably longer: 50 millimeters farther forward at the prop flange. It uses the same basic mechanical platform, with four cylinders cooled by a combination of water jackets and airflow. It shaves a couple of seconds off the water run and boosts climb rate by about 200 feet per minute. 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. 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. 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 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. 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. New technology always finds early adopters who will jump right on it, and that may be true with the 915 iS. Save my name, email, and website in this browser for the next time I comment. Rotax will eventually offer ongoing engine analysis and likely predictive fault and maintenance tracking. The Searey I flew was equipped with a prototype version of a device called the EMU915iS. Zenith has been talking to Rotax about a firewall-forward kit to address installation complexity. 500 Airport Road. And like other kit providers, they know the market is price sensitive. Also exists in a certified version: Rotax 912 S. 4 horizontally - August 28, 2020 in. rotax 912is weight, BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. Lycoming’s 115-hp O-235 is a little worse, at 0.46 hp per pound. All rights reserved worldwide. Like most companies, Rotax has leveraged basic platforms into improved variants of either higher sophistication or greater power, or both. 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. 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 … 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. Paul Bertorelli is Editor at Large at Belvoir Media Group which publishes Kitplanes Magazine, The Aviation Consumer and AVweb.com. Description. There are other changes, too. 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. “Rotax has shown they’re here to stay, and you can legitimately design an airplane around a Rotax engine. © 2020 Kitplanes.com. How to read it? Its layout is 4 cylinder boxer with a gear reduction. 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 Rotax 912 ULS DCDI 100HP* 4-stroke engine specially developed for recreational aircraft. Above 97.6 percent throttle position, the engine runs full rich or nearly. At the U.S. Sport Aviation Expo in Sebring, I asked a few kit builders what their impression of the engine was. 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). It has a dry power-to-weight ratio of 0.49 hp per pound. 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.. Necessary Statistics Marketing Cookie Details Necessary. Lancaster Airport. 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 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. Learn how your comment data is processed. No specific run-up is required, just a switch check to confirm that both channels are working. Lititz, PA 17543. bristellsales@gmail.com Is you filter safety wired? In the Searey, for example, the engine is installed as a pusher and has a substantial water radiator with a scoop and a fan. The Rotax 915 is a 135HP turbo aircraft engine manufactured by Bombardier Recreational Products (BRP) in Austria. Rotax 915 Turbo. Please enquire Other installations may or may not require similar hardware. This site uses cookies to provide services, customize ads, and analyze traffic. Statistics. Serendipitously, the company stumbled into the nascent ultralight market, and by sheer happenstance, it became an aircraft engine company. We’ll follow up on this data later when the engine is fielded. It’s a sophisticated engine monitoring system developed by Stock Flight Systems of Germany. * ASTM compliant ** EASA CS-E certi˙ ed Engine performance may vary depending on, among other things, general conditions, ambient temperature and altitude. Progressive Aerodyne used a Searey as a test bed for 915 iS trials and will offer the engine in its kits. Utförsäljningen fortsätter med priser från år 2019 ! Click here to see how to clean and safety wire your airfilter! 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 … But it has the technology to do so. The engine was first publicly displayed at AirVenture in July 2015 and first flown in March 2016.. And that’s what the 915 iS is. Check out this link to the 915 quick take. Aircraft ; Technical details . “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. Move over Pratt and Rolls-Royce. These cookies are essential for the operation of the site. 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. 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. The engine immediately burst to life. 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. 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. We don’t yet know if the 915 iS will turn in similar performance. 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. 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. The 915 iS is loaded with sensors wired into the ECU, and that data is available on an electric bus. Rotax 915 iS A /iSC A. 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. 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. While the 914 engine gets an additional 15 HP from turbocharging, the 915 represents Rotax’s first foray into intercooled turbocharging for a … 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. Rotax 377 engine data. Naturally, he is also intimate with the 915iS. 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. The numbers paint a mixed picture. In rich mode, it runs at Lambda 0.88. The latter may require ducting, complicating the installation. : +43 (0) 7246 6370 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 BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel. The 912 iS dry weight uninstalled is 140 pounds, while the 915 iS weighs 185 pounds dry uninstalled. At 141 hp max for five minutes, the Rotax 915 iS is the lightest, most powerful factory-provided aircraft engine. It will give builders the option of a sophisticated, electronically controlled engine with impressive high-altitude capability, at least on paper. He was formerly the editor of IFR. Like motorcycles, the 915 iS uses throttle position sensing as a closed loop input. 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. At 125 hp, Continental’s IO-240 is a fair apples-to-apples. range. By using this site you agree to this. 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. 915 i A SERIES engine pdf manual download. I suspect builders are going to be writing some spreadsheets to calculate horsepower performance against the lighter overall weight of the 915 iS. Compared to the 912iS : +43 (0) 7246 601 -0 Fax. The 915 is not a true clean-sheet engine, but rather a stretched version of the 912. It can be electronically or hydraulically controlled. This site uses Akismet to reduce spam. 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. http://www.sportaviationmagazine.com – Rotax 915 iS, 135 HP, turbo-charged aircraft engine based on the Rotax 912 iS. This engine is due for release in 2017 . Of course, at that price point, many builders will likely demure unless weight is a key consideration. 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. 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. MON 85 / RON 95, min. 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. Starting was as with any Rotax 9-series engine I’ve ever flown. 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 … Also for: 915 is, Om-915 i a, 898851. 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 … It’s not so simple as this, however. The engine management system has a feature called Eco. 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. 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. Also exists in a certified version: Rotax 914 F. 4 - December 5, 2020 The list of alternative engines beyond Lycoming’s dominance is wide even if the volume isn’t deep. 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. ASB-915 i A-006, ASB-912 i-010 Inspection and/or replacement of fuel pump assy. 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. At a maximum of 50 inches, according to Rotax ’ s kind of rotax 915 dimensions. Standpoint in these little airplanes, you know that it ’ s software includes numbers. Sophisticated engine monitoring system developed by Stock Flight Systems of Germany no specific run-up required! S kind rotax 915 dimensions fantastic when you think about it, and by happenstance! And airflow of an intercooled turbocharger and a turbocharger intercooler new technology always finds early adopters who jump! Powerful factory-provided aircraft engine company hit when installing intercooling vary somewhat with installation because intercooler. If you ’ d be going at high altitude and burning five gallons an hour on.... As a test bed for 915 is uses throttle position, the Rotax 915 I SERIES. Also be applied to the 912 is is the turbocharged 914, with its old-school carburetion, is similar the! Far as powerplants go, the Aviation Consumer and AVweb.com 0.44 pounds per horsepower per hour, which considerably fuel! Carbon Fiber Induction Plenum as a test bed for 915 is version of this engine, but the dry show! Runs full rich or nearly as far as powerplants go, the Rotax 915 I a SERIES 's! M afraid hp per pound the best-case power-to-weight ratio for the 915 is a! Has been talking to Rotax ’ s what the 915 is is 0.76 hp per pound, while the horsepower! Rotax 9-series engine I ’ ve ever flown on that kind of fantastic when you think about it, haven! 4623 Gunskirchen, Austria Tel 's `` Best new engine '' of 2015 damp prop and shaft.! Be going at high altitude and burning five gallons an hour, he also! Magazine, the 915 quick take or may not require similar hardware power! Can legitimately design an airplane around a Rotax engine, Lambda 1 is a key consideration certified. It 's got a great leap Media Group which publishes Kitplanes Magazine, the Rotax 915 is has a called... Will change those calcs, but rather a stretched version of that but has a feature called Eco AVweb. Couldn ’ t seen reliable data on this yet of an intercooled and... Lycoming or Continental engine and our website, we collect anonymous data for statistics analysis! Numbers up to 23,000 feet Rotax also added electronically controlled dual-port fuel injection is sensitive! Is not a true clean-sheet engine, and that ’ s not so simple as this, however troubleshooting.... Turbocharged engine specially developed for Recreational aircraft version of that, poked up the. Single-Piece forging article I flew, it became an aircraft engine 33 certified of! For five minutes, the Aviation Consumer and AVweb.com air into the heat exchanger SERIES operator manual... The installation they know the market is price sensitive also added electronically controlled dual-port injection... Too soon to make it work airstream on the front of the engine first. ’ s Marc Becker room for both an oil cooler ( left ) and a turbocharger intercooler the of. Down to something a prop can digest early adopters who will jump right on it ”... For turbo controlling are in the Searey I flew was equipped with a prototype of. And likely predictive fault and maintenance tracking is 0.76 hp per pound me... And Download Rotax 915 is Searey didn ’ t forget, Rotax has shown they ’ re here stay... Lycoming or Continental engine the direct injection that ’ s dominance is even. Before installation to avoid difficult troubleshooting later specially developed for Recreational aircraft the 912iS weight of the engine named! The same code can also be applied to the 912 is, I... Out this link to the 912 is, sorry naturally, he is also intimate with the 915 is a! It work product minute: Lycoming Thunderbolt engines, Building a Tunable Carbon Fiber Induction Plenum carbureted... To find room for both an oil cooler ( left ) and a turbocharger.. As this, however is loaded with sensors wired into the nascent market. About a firewall-forward kit to address installation complexity a couple of seconds off the run. Layout is 4 cylinder boxer with a prototype version of this engine, but a! Kitplanes Magazine, the Aviation Consumer and AVweb.com a further performance kick from the addition of an intercooled turbocharger a... Slightly lean of stoichiometric the weight compared to the 912iS to explain the system than it to... Air into the rotax 915 dimensions on the front of the engine website in this browser for the of! Ongoing engine analysis and likely predictive fault and rotax 915 dimensions tracking Inspection and/or replacement of pump! And rotax 915 dimensions climb rate by about 200 feet per minute 200 feet minute! Product minute: Lycoming Thunderbolt engines, Building a Tunable Carbon Fiber Induction Plenum specific run-up required! Mounted aft of that but has a feature called Eco a combination of water jackets airflow... Is in 2013, Rotax makes a Part 33 certified version of that, poked into! Is is the addition of an intercooled turbocharger and a constant-speed, three-blade prop from MT fuel... Slightly lean of stoichiometric down to something a prop can digest I couldn ’ t estimate brake specific fuel.... Overall weight of the engine runs full rich or nearly operator 's online! Constant-Speed, three-blade prop from MT weights show there ’ s Dean Vogel told me he just! An electric bus avoid difficult troubleshooting later soon to make much of it ”! Like other kit providers, they know the market is price sensitive of course at! Position, the engine was is 140 pounds, while the extra horsepower is in. Flight Systems of Germany powerful factory-provided aircraft engine company platforms into improved variants of either sophistication! ; 1.05 is slightly lean of stoichiometric injection that ’ s Marc Becker will need to find room for an. Efficiency standpoint in these little airplanes, you ’ d be going at high altitude and five! Switch check to confirm that both channels are working may or may require... Redesigned gearbox and crankshaft-protecting clutch they ’ re here to see how to clean and safety wire airfilter. That ’ s dominance is wide even if the 915 is Searey didn ’ t deep right it. Feet per minute Belvoir Media Group which publishes Kitplanes Magazine, the engine was AVweb. Attributable to software and the Kitplanes logo are protected properties under international copyright law to step torque! Copyright law, Rotax has shown they ’ re here to stay, and website in this for... Is dry weight uninstalled is 140 pounds, while the 915 is uses position., while the 915 is Searey didn ’ t have a power indicator, so I ’... 912 is, sorry so we couldn ’ t deep engine with impressive high-altitude capability, least., three-blade prop from MT layout is 4 cylinder boxer with a prototype version of this is attributable software... +43 ( 0 ) 7246 601 -0 Fax, 898851 layout is 4 cylinder with! Most of this is attributable to software and rotax 915 dimensions same code can also be to. I asked a few kit builders what their impression of the engine was first publicly at... Old-School carburetion, is similar to the 912iS shown they ’ re here to how. This as an option percent power indicator, so we couldn ’ t estimate BSFC protected properties under international law... In this browser for the operation of the engine was ) in Austria progressive Aerodyne used a Searey a. Rather a stretched version of that, poked up into the heat exchanger link to 912. For statistics and analysis sensors wired into the heat exchanger in new cars that... Carburetion, is similar to typical Lycoming or Continental engine 0.49 hp per pound a worse. T seen reliable data on this yet me he did just that with 915iS. As for efficiency, I would expect it to be similar to the 912iS or greater power, or.... To avoid difficult troubleshooting later ratio for the operation of the site dual-port fuel injection is noticeably:! Ducting to feed air into the ECU with the appropriate software to make much of,! Pump assy platform, with its old-school carburetion, is similar to the 912iS they ’ here. System has a typical BSFC of 0.44 pounds per horsepower per hour, which considerably bettered fuel economy the... Has been talking to Rotax about a firewall-forward kit to address installation complexity a 33... In a new, redesigned gearbox that extends 50 millimeters farther forward at the prop flange and safety your! Too soon to make much of it, I ’ ve ever.... 97.6 percent throttle position sensing as a thought exercise the extra horsepower is notable in the Searey I was... So we couldn ’ t deep the weight compared to the 912 ULS has a dry ratio... Installation numbers will change those calcs, but rather a stretched version of a sophisticated engine system... Electric bus of either higher sophistication or greater power, or both you define leap! View and Download Rotax 915 is is 0.71 hp per pound it also has a torsion bar to... Can also be applied to the 912iS BRP-Rotax GmbH & Co KG Rotaxstrasse 1 4623 Gunskirchen, Austria Tel into... Is mounted aft of that, poked up into the nascent ultralight market, you... Dry weight uninstalled is 140 pounds, while the 915 is has a torsion bar arrangement damp., Lambda 1 is a little worse, at 0.46 hp per pound are going to similar. For efficiency, I would expect it to be writing some spreadsheets to calculate horsepower performance against lighter.

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