Compass Avionics Incorporated Manufactures and sells redundant electronic fuel injection & ignition systems for converted auto engines. They are compact but require accurate alignment. Raven ReDrives introduced their new supercharging kit for the Geo - Suzuki auto engine conversions at Airventure 2000. Distributor. Somewhere between 150 and 250 of these engine conversions have been built and are flying today. The company is using Honda L15-series and Mitsubishi car engines for their conversion to an aircraft application. Unfortunately, many radiator systems in homebuilt aircraft look like afterthoughts. Thread Tools Search this Thread 27th Apr 2019, 23:26 #21 tail wheel. Gears are manufactured in sets and can be manufactured to a variety of accuracy standards. Engine mount and hardware . Save my name, email, and website in this browser for the next time I comment. MojoGrip. Myth: Aircraft Engines are easier to install. 03-20-2015, 07:18 AM #6. sledg77. Dean Berry's 4.3 Chevy RV-6A Aircraft -Berry 67. Raven Rotorcraft & Redrives Inc. Geo Metro/Suzuki auto engine reduction drives and conversion manuals. Yes, we like doing engine conversions. One of the most efficient was the Mosquito, whose radiators were buried in the wing between the fuselage and the engine nacelle. Raven Rotorcraft - Manufacturer of Geo/Suzuki turbo engine conversion & belt-drive reduction units for small ultralight aircraft & marine use. Many homebuilt aircraft have flown for years with auto engines and Finch explains how others have done it and saved big money engines, maintenance and fuel. Engine oil systems, the sump, pump, distribution galleries and bearings are generally adequate for the normal rated power. Robinson V-8 Aircraft has everything you need to convert to a LS series V8 with our Base Engine Conversion System. This month we address the question of where flight-test areas may be and how they may be structured; Throughout human history, societal groupings of like-minded people have developed certain requirements for new... Fuel Flow TestsAll the engineers here at the Light Aircraft Association HQ in the... © 2020 Kitplanes.com. However, when automobile manufacturers offer the same engines as industrial engines, they are rated at normal rated power. 1. Provided the correct power and torque ratings are observed, any core automobile engine should provide reliable service. Toothed-belt manufacturers do not endorse PSRU applications, so users are on their own establishing application factors and service life. Our 82mm crankshaft is made specifically for aircraft … All rights reserved worldwide. AeroConversions is a product line of high-quality powerplants, systems and parts for use in recreational aviation. Chains are prone to galling (tearing away of metal from load- bearing surfaces), tension failures and fatigue failures. G.E.M. When you apply the cold, hard engineering realities, it turns out that most of the time, replacing a Lycoming or Continental air-cooled aircraft engine with a liquid-cooled piston engine is a bad idea. Called the RG TT2000, the engine produces 100 hp and over 225 ft. lbs. For decades converting automotive engines for aircraft use has attracted great interest. Eggenfellner, Vesta and Powersport offer everything from small, turbo charged engines … This fact is rather obvious, but the engine rated speed and the optimum propeller speed determine the actual ratio. Subaroo Specialties Performance Subaru engines. Stratus rebuilds its engine-changing the camshaft to optimize the torque curve for aircraft use. View Profile View Forum Posts Join Date Mar 2015 Location Charlotte, NC Posts 1. Automobile engine power is quoted as maximum rated power. Lubricating oil should be the type and grade recommended by the engine manufacturer. Contrasting this, in an aircraft, we expect TBO of 1500-2000 hours in an engine that delivers 55%-100% of rated power, averaging about 75% of rated power. The function of the inlet duct is to increase in area gradually so the air velocity slows to the most efficient heat-transfer speed. February 16, 2004. Gears are precision-machined components whose contact surfaces have been hardened. What do we do different? Main housing is cast aluminium and all internal components are machined from billet aluminium with extremely close tolerances of 0.005”. History demonstrated that the use of automotive conversions in aircraft results in a higher risk of engine failure than when using certified engines or engines designed purposefully for aircraft use. This engine is comparable in power to the Lycoming O-235 but lighter in weight. A planetary reduction like on a PT6 or double helical reduction like on a … This PSRU is a Supermarine Aircraft design for our engine packages with thousands of hours testing and flying in the field with no failures. One of our recent conversion projects (2011) was the development of the V8-powered, EPI Mark-9 equipped Periera GP-5 Reno Racer, which competed … The theme of all of these was efficient inlet and exit ducting with few or no bends, with the radiator core perpendicular to the airflow direction. The Stratus EA-81 can be installed in planes like George Thiel’s Avid Heavy Hauler. Automotive engine conversions and conversion kits. It is better to make a duct that increases the airframe frontal area but is well streamlined on the outside and inside, than to try mounting the radiator in the space between the engine and the firewall with several 90 bends in the duct. Equipped with an experimental Chevy 4.3L V6 engine that can be sold with the plane or not. Lone Star Light Sport VW aircraft engine conversions. As there are hundreds of parts in the links and pins, many more parts can fail compared to gears. Ls3 aircraft air trikes s and conversion kits stratus ea81 aircraft build a aircraft cessna grand caravan 208b ls3 aircraft The State Of Auto ConversionsSafety Is No AccidentAuto S In Aviation2016 Er S Traditional And ConversionZodiac Xl Corvair Custom Automotive Conversions For AircraftAir Trikes S And Conversion KitsWhat Hened To The Subaru Aircraft JdfinleyNsi Subaru […] Although they are light, relatively inexpensive and quiet, the reinforcing fibers have a finite life, and the molded teeth need to be inspected on a regular basis for wear. Also closing out many VW engine conversions. History demonstrated that the use of automotive conversions in aircraft results in a higher risk of engine failure than when using certified engines or engines designed purposefully for aircraft use. Chain drives may be either roller chain or Morse Hy-Vo chain. Rolling-element bearings are preferred for both the thrust bearing for the propeller and the radial bearings for the input and output shafts. The Viking company Zenith CruZer is faster than any other flying at 126 kts / 154 mph TAS @ 8500 ft DA. Firewall forward packages for almost any homebuilt aircraft. The engineering in these support systems can be considerable. Raven Honda Fit Engine Conversion(Pt. It is interesting that the aircraft conversion lists two power ratings. SubieLyc Engine Systems Aircraft alternate engine and reduction drive based on the subaru EJ-22 and the Lycoming engine mount. If we plot a typical engine power curve against a propeller demand curve, we see the information in Chart 1. FAA Certifies Diesel Auto Engine Conversion Certification First. Helical gears are quieter due to the sliding action of the teeth, but they are slightly less efficient and require the bearings to absorb the end thrust. Learn about Raven's innovative rotocraft gyroplane tractor autogiro autogyros for ultra light airplane helicopter trikes. $68,000 with the engine or $48,000 without. Note that the automobile sports engine power rating is 75% higher than the industrial version. Aircraft engines are designed to sustain this punishment reliably over a typical 2,000-hour service life. Interest in 4-stroke auto-moto engines converting for Light Sport and Ultralight aircraft is growing all over the world. If we choose the aircraft conversion figures as an example: T=275 x 5252/3500=412 lb.-ft. The EA-81 is a 1.8 L, with two Bing carburetors, single ignition, liquid cooled, belt driven reduction for the propeller, equipped with a 45 amp alternator and its maximum power is 100 hp. The system fill/pressure cap should be a coolant-recovery type, and the pressure rating should be the same as that provided by the manufacturer in the automobile application. The P-51 Mustang used an aft-fuselage-mounted radiator, while the P-40 Warhawk’s was mounted beneath the engine. Auto engines today are designed and routinely tested to higher standards than certified aircraft engine requirements. While an engine’s power rating is the most widely used rating, it is an engine’s ability to do work – its torque rating – that is most important. The valves should be those recommended by the manufacturer. That being said, there are a few cases where it is an excellent choice. Stratus Incorporated Converted Subaru EA-81 engines for use in Avid Flyers and similar light, home-built aircraft, and the Cessna 150F. Aircraft homebuilders usually do so to save money. Atkins Rotary Specialties Inc. We have done thousands of hours in the air and on dyno rigs for fine tuning and testing. One unique feature is the fact that there is no need to cut the case. The function of the propeller is to convert the engine power into thrust. Naturally aspirated aircraft engines typically weigh 2 pounds per horsepower. 267. Real World Solutions Producing and flying a PSRU for Mazda rotary engine conversions, electronic fuel injection controller for Mazda rotary, Subaru and Chevy V-8 engines, and the book, "Aviator's Guide to Mazda Rotary Conversion.". Contact: Jerry, the Owner/Builder at 810-329-7083 (home) or 810-300-1140 (cell) First one in Canada Some are cheaper, some more expensive. Powersport Aviation, Inc. I'm Fly'N Producing Subaru engine conversions and accessories for homebuilt aircraft. Like the story of the Stratus conversions listed elsewhere in this magazine, few recent developments hold as much prom­ise for the future of light-to-moderate weight sport aircraft as do the recent introduction of a series of Subaru engine conversions for sport aircraft use. Aero Tech Automotive engine conversions. The AeroVee 2.1 package is a 2180 cc, 80 hp Aero-Engine that can be run on AvGas or Auto Fuel. There was a great discussion about the engine on the Zenith Engine page but it seems the moderator was pressured to delete the thread. Viking & Valkyrie Power. By the time you add accessories, mount, cowl and prop, it will cost about the same as most auto conversions. The Spitfire, Hurricane and Bf109 used underwing radiators. The difference between a reliable and unreliable installation is in the systems engineering, which means all of the support systems, PSRU, fuel, oil, cooling and controls that the engine needs. It also has the shortest takeoff roll of any CruZer. $68,000 with the engine or $48,000 without. Our Raw Power engine conversion kit means replacing an aircraft engine with an engine of a different type or size, and requires our registered Supplemental Type Certificate (STC). The typical road-load power (rolling resistance plus aerodynamic drag) required of an automobile engine is only about 20 hp at highway speeds. In addition to the tension force required to transmit power, additional tension force is due to the centrifugal force caused by the rotational speed of the drive. In aircraft powerplant design, this can lead to forced landings or worse. The AeroVee 2.1 is a complete VW Conversion Engine Kit Package, by AeroConversions. Return to Powerplants and PSRUs Return to Vendors Return to Homebuilt Homepage. 2) We're now on: 'How do we plan to optimize and streamline the auto engine to aircraft process' from our initial outline below. Wow, whoever wrote this must be wearing rose colored glasses! Don Bouchard talks with Don Hansen about how he converted … If a separate radiator-type cabin heater is used, make sure this can be shut off completely in the event of a leak. GM produced 1.7 million Corvair automobiles between 1960 and 1969. All chain drives require an enclosed housing and continuous oil lubrication. Prices of certified 4-stroke aviation engines are quite high. This engine is an automotive conversion that will provide the full 250hp for takeoff and climb continuing all the way to FL250 by using a boost pressure up to 2.5bar. Join Date: Jan 1996. Firewall Forward Aero Engines Inc. Producers of the CAM series of Honda based liquid cooled aircraft engines complete with a belt drive PSRU, and the CAMDRIVE 500 helical gear psru for up to 500 Hp engines. Auto engines today are designed and routinely tested to higher standards than certified aircraft engine requirements. ENGINE BEAT: June 1994. Huronia Aero-marine Belt reduction units for a variety of motors. TEAM-38 Manufactures V-8 engine conversions. Aircraft Auto Engine Conversions. RAM Performance Subaru Offering 1.8 and 2.0 Subaru engines for aircraft, hovercraft, etc. Automotive V8 Engine Conversions for Aircraft. 276 hours of total run time. In some cases, these pins are designed to break if the pump encounters debris. Auto Conversion Aircraft Engines. Reply Subscribe . Hose clamps should be constant-tension type, and two clamps per hose end provide extra safety. One of the most common experimental aircraft engine conversions in the world is the VW Type 1 based, long block , 1600 cc. VW Engine Centre Producing an Austrailian design … When you do a true, accurate, apples-to-apples comparison of the total, … Spur gears are more efficient because they have no sliding friction and no end thrust. We offer a full line of machine shop services for VW aircraft engine conversions. If you are convinced that you have decided on a sufficiently-reliable powerplant to replace the existing one, here are some thoughts to help decide whether to go further. This two-part article will try to impart some basic engineering knowledge and analysis for those who wish to experiment with converted automobile engines. Radiator design is rather complicated because the heat rejection depends on the air and water temperatures and the air and water flow rates. This is normally measured on a dynamometer or brake, resulting in the term brake horsepower. TEAM-38 Manufactures V-8 engine conversions. “The best conversion I know is to take $8000 and convert it into a good, used Lycoming.” That may sound a bit narrow-minded, but it reflects the basic truth: No non-aircraft engine has yet proven to be as reliable, maintainable, available and inexpensive (everything considered) as a traditional aircraft engine. 1. You have entered an incorrect email address! Filters must be lockwired so they don’t unscrew. We also produce slightly bigger engines. An engine’s end use determines its characteristics. The maximum rated power gives an indication of the ultimate performance of the vehicle. The FAA only requires 100 hours of full throttle, full rpm for certified engines and another 50 hours at 75-100% power, 50 hours of which are required to … It currently powers Aerodrome Airplanes replica aircraft, Aerosport Quail, Benson Gyro, Brock Gyro, BK-1, BK-1.3, Corby Starlet, Cygnet, Double Eagle, Dragonfly, Easy … Failure means that the races will start to exhibit rough surfaces causing noisy operation. Many housings have open sides to facilitate inspection, but consideration should be given to enclosing them to prevent debris from damaging the teeth or breaking the belt. When you opt to build your own airplane through a kit, one of the important things to consider is your power plant. First of all, unless you are you are a very timid driver, EVERY auto engine sees full rated power every day you floor the gas pedal and crack off a redline shift in your car. Torque (T), power (P) and engine rotational speed (N) are related by: If we choose the aircraft conversion figures as an example: Interestingly, if we check the torque at the maximum power rating we find: which is 7% less than the peak torque rating. Able Experimental Aircraft Engine Company Manufactures and sells worldwide: VW-based, high-performance, 2 and 4 cylinder engines for use in sport aircraft, airboats and industrial applications; AltiMizer altitude-compensating carburetors; high-performance induction systems for VW, Subaru, Rotax and other engines; sells Prolong Super Lubricants to aviators. Electramotive has adapted two automotive derived engines for aircraft, one for the “Pond Racer”, a Reno type unlimited air racer and the other a commercial crop duster. The Better Half VW The Better Half VW engine conversion was started in 1993, and so far have sold about 3000 plans set. The plane is in great condition and has always been stored in hangar. VW 1/2 engine. BUT. All PSRUs require bearings. November 8, 2018 April 20, 2019. The difference between maximum rated power and normal rated power is extremely important to this discussion as it directly affects reliability and TBO. The FAA only requires 100 hours of full throttle, full rpm for certified engines and another 50 hours at 75-100% power, 50 hours of which are required to … All of the supplied components are brand-new, zero-time parts. Raven Rotorcraft - Manufacturer of Geo/Suzuki turbo engine conversion & belt-drive reduction units for small ultralight aircraft & marine use. This PSRU is a Supermarine Aircraft design for our engine packages with thousands of hours testing and flying in the field with no failures. Torque (T), power (P) and engine rotational speed (N) are related by: T (lb.-ft.) = P(hp) x 5252/N(rev./min.) Consider that the industrial version power curves show increasing power and torque at engine speeds greater than shown in the table, but the engine is not rated at the higher speeds. KITPLANES Magazine, August 2001 Auto Engines for Aircraft Part 2 of an engineering perspective on these popular conversions. The cooling system is a primary engine support system, along with the fuel and ignition systems. Designed by M.J. Spring, these are the complete plans to convert a Volkswagon car engine into a 1/2 aircraft engine. Stratus 2000, Inc. Jan Eggenfellner comes to mind. what engine are you going to fly behind? This company uses a four cylinder EA-81 or an EJ-22 Subaru engine for conversion to an aircraft engine. Next month we will continue with a discussion of ignition, balancing, and using the right fuel. Most aircraft weigh 10 pounds per horsepower, so the substitution of a heavier engine means the airframe must be lighter, or the payload must be reduced. An experienced company with a lot of engines flying. These plans go along with many of the airplanes plans and info that we sell. The plane is in great condition and has always been stored in hangar. Should be more than competitive with a falconer V12 and a heck of a lot more reliable … Oil-lubricated bearings should reach the calculated life. Components are assembled and delivered as a unit. To compare these in more detail, we need some definitions: The rate at which the engine does work. The history of engineering is full of examples of experimenters confounding the theorists and vice versa, but in general, successful engineering depends on a combination of knowledge, analysis, experimentation and test. Manufactures and sells worldwide: VW-based, high-performance, 2 and 4 cylinder engines for use in sport aircraft, airboats and industrial applications; AltiMizer altitude-compensating carburetors; high-performance induction systems for VW, Subaru, Rotax and other engines… Once the loads are accurately known, bearing manufacturers’ handbooks provide excellent formulas to rate the life of the bearings. They should read this book to try to get their mind out of the rut that the outrageously overpriced aircraft engine is a necessity. Learn about Raven's innovative rotocraft gyroplane tractor autogiro autogyros for ultra light airplane helicopter trikes. Mounted on the engine on display was a 40 mm CV carburetor which is used to prevent carb icing, it also helps deliver 75 to 80 pounds of torque to the propeller. Cascade offers a variety of STC’d engine conversions for agricultural aircraft. Units are horsepower (33,000 foot-pounds per minute). The RG TT2000 is able to swing composite props. Note that the internal clearances in the journal bearings and cam drives are designed with the recommended grade in mind and that using a heavier grade may lead to increased wear. Automobile radiators can be used, but it may not be possible to obtain performance charts from the manufacturer. A gear drive is the most reliable and the most costly. Our kit accepts Constant Speed Propeller. You may buy them new from Honda but most customers opt for used engines that have been used in cars for less than six months or 5000 miles. Over the last century, the internal combustion aircraft and automobile gasoline engines have evolved to have the characteristics found in Table 1. Hurricane Force Producing the Hurricane Force 541, a big block Chevrolet conversion which is ideally suited for 3/4 or larger scale warbird kits or other experimental aircraft requiring sustained, high horsepower. In addition to a coolant temperature gauge, cockpit instrumentation should include a coolant pressure gauge, which will give the fastest indication of leakage. The auto/industrial engines in the table weigh 3-3.5 pounds per horsepower including the cooling system. All pins should be examined to determine if the shear feature provides a margin of safety or if it is a single-point failure that will disable the entire engine. We cover topics relevant to anyone who has ever dreamed of building or owning a homebuilt experimental aircraft. of torque. This Eggenfellner Subaru conversion lost power a couple days ago and Crashed. By Viking Aircraft Engines. OUR GOAL To inspire today and tomorrow’s generations by offering low-cost services and reliable products all while gaining performance and becoming a part of a community. Able Experimental Aircraft Engine Company. CONTACT! Homebuilt Homepage Vendors Powerplants and PSRUs. Victim of a bored god Moderator . Great Plains Aircraft Supplier of VW engine conversions, conversion kits and components. Contact: Jerry, the Owner/Builder at 810-329-7083 (home) or 810-300-1140 (cell) First one in Canada This is mainly because of the high cost of aircraft engines. Supermarine Aircraft has spent the last five years developing the V6 and now the V8; both have been test flown by our CEO, Mike O’Sullivan. Try running your car’s engine at or near redline rpm all the time and see what happens. The aircraft engine is expected to run at high power for up to 2000 hours without a hiccup." If left in service long enough, all bearings will fail due to fatigue failure of the rolling surfaces. Airbus offers cargo conversion for a330 autorotating the tiltrotor auto conversion reliability s aero lab article skybolt with subaru aircraft The State Of Auto ConversionsSafety Is No AccidentAuto S In Aviation2016 Er S Traditional And ConversionZodiac Xl Corvair Custom Automotive Conversions For AircraftWhat Hened To The Subaru Aircraft JdfinleyNsi Subaru Ea81 Aircraft Conversion Build A … Kitplanes Magazine: Your Homebuilt Aircraft Authority. DIESELS: A Prototype Airplane with a Diesel Engine-Lucas: 48. Of course there are reduction drives on many aircraft engines Leadsled, that goes without saying. The function of the exit duct is exactly opposite: contracting gradually to increase air velocity. Viking Aircraft Engines. 0204_Box1_v2_F. We know that popular 2-stroke Rotax 503 and 582 are not certified aviation engines but variations of snowmobile engines with all 2-strokers' problems. No engine will function for long without adequate cooling. While an engine’s power rating is the most widely used rating, it is an engine’s ability to do work – its torque rating – that is most important. Whenever you need reliable Volkswagen power the information here can help you. The upright versions are mostly used in trikes, light twins and replica aircraft that require a narrow engine package. They do not have the surface hardness and wear characteristics that the special valve and valve seat alloys used by the engine manufacturer have. Lone Star Light Sport Aircraft was founded with the goal to offer premium craftsmanship and superior customer service. Aftermarket valves made from titanium or stainless steel are made specifically for reduced valve inertia at high rotational speeds or for special fuels such as alcohol. This site uses Akismet to reduce spam. Nobody is standing up and preaching to the masses about the benefits of the Subaru engine. Brand new LS2 6L V8 crate Motor modified by Supermarine Wayne Scraba Producing and selling big block Chevy conversion engines for homebuilt aircraft. There are many hundreds of other one off auto powered aircraft flying today and there are more companies than ever offering engine packages, parts, reduction drives and propellers to consumers. A new Superior XP-360 engine costs $20,000 just for the engine. Serving the experimental amateurbuilt, homebuilder, we specializing in 1/2 VW and VW aircraft engine conversions. Neither the crankshaft nor the crankshaft bearings was designed for side loads. But note that the power absorbed increases as the cube of the rpm and the fifth power of the diameter. At one time, it was thought that auto engines were for cars, boat engines were for boats, and airplane engines were for airplanes. Come New Years we enter our 19th year of converting auto engines for aircraft. Gain performance and lower your operating costs with a Robinson engine conversion kit!. Therefore, if our engine is rated at a higher rpm than the optimum propeller speed, we need a propeller speed reduction unit (PSRU). The Subaru cylinder heads are ported for better breathing The engine is fitted with a custom intake manifold and two Bing altitude-compensating carbs. There is no evangelist for Subaru Aircraft Engines or the conversions of them. 2) We're now on: 'How do we plan to optimize and streamline the auto engine to aircraft process' from our initial outline below. Kitplanes.com and the Kitplanes logo are protected properties under international copyright law. He flies his own airplane and is working on the Canadian equivalent of an A&P mechanic’s rating. As a minimum, the L10 life calculated should be at least 1.5-2 times the TBO of the engine: 3500-5000 hours. There have been a few that some would label as such (but I disagree). Engine Conversions STC's. Higher-pressure caps will raise the boiling point of the water, but may also cause head gasket or water pump seal leaks. 180-320hp. The L10 life is generally used, which means that for the load in question, 10% of a large sample of bearings will fail before reaching the calculated life (either hours or revolutions). However, the pump drive system should be checked to see if there are any pins connecting the drive gears to the shafts. If sealed bearings are used, they may not reach this life if the hours per year are low because the grease sealed inside the bearings can dry out. By Terry Edwards. Automotive V8 Engine Conversions for Aircraft It's been long postulated that car engines are unsuitable for aviation use because of the high continuous power demands compared to motoring. To minimize the tip losses and noise, the propeller blade tip speed should be less than the local sonic velocity. Builds Mazda rotary engines for experimental aircraft. Custom radiator shops use charts to determine radiator area and core thickness. Main housing is cast aluminium and all internal components are machined from billet aluminium with extremely close tolerances of 0.005”. Because heat (energy) is added to the air in the middle of the duct, it is possible to obtain net thrust from the duct as exit energy is greater than inlet energy. Posts: 6,627 Quote: The most disappointing thing about this thread is that they never built a production radial car engine. KITPLANES Magazine, August 2001Auto Engines for Aircraft, Part 1 Part 1 of an engineering perspective on these popular conversions.By Terry Edwards. Aircraft Engines l Auto Conversions VS Certified Engines. 15.5K. Corvair engines have been powering experimental aircraft since 1960. There have been many successful installations of such engines, but the builder must be aware of the engineering aspects of engine characteristics and systems. Weight-shift aircraft (trikes) end everything for them: Eagle trike plans, trike wings and chassis, Suzuki and BMW converted engines. It will be the same one used on the Hybrid model. Aircraft Auto Engine Conversions This Eggenfellner Subaru conversion lost power a couple days ago and Crashed. The Raptor Diesel will be powered by a Fiat 1.9L TDI engine. Sharp bends increase cooling drag. Automotive engine conversions and conversion kits. He was a … Custom built. There are a couple of firewall forward kits that make it just as easy to install an auto-conversion as it is to install a standard airplane engine. AeroConversions products include the AeroVee Engine, AeroCarb, AerConversions Trim System and Throttle Quadrants, along with many other parts and accessories. Auto conversion engine is a thing in civil aviation. We can calculate, optimize and propose the best propeller for your craft. 13. Table 2. Produces the PS-215 Mazda rotary based engine, the PSRU-300 reduction drive for Mazda rotary conversions, and computer based Multi-Function Displays. We sell In-flight Variable Pitch and ground adjustable KOOL propellers, different spinners, spare parts for propellers. Point is, many look to auto conversions due to the affordability factor, without considering the need for reduction. Come New Years we enter our 19th year of converting auto engines for aircraft. AUTHOR TERRY EDWARDS is a senior mechanical design engineer currently working on marine propulsion drives. NorthWest Aero Products Suppliers of the Chevy LS1 V8, Chevy V6 and Ford V6 convertions, as well as PRSU and other engine accessories. VW Engine Centre Producing an Austrailian design VW conversion with a U.S. Lone Star Light Sport 1/2 VW Aircraft Engine Conversions. Location: Utopia. The American Gear Manufacturers Association (AGMA) lists these standards in their publications. In fact, the airplane is so powerful; it can takeoff much shorter than a full fledged CH-750 STOL airplane. The primary cause for the lower reliability resulted from the lack of adequate communication between fellow experimentalists. A close examination of WW-II-era aircraft will give some guidance in how to integrate the cooling system into the airframe. Topics included propellers and speed-reduction units, cooling and lubrication systems. However, the aircraft conversion is still rated much higher than the engine manufacturer’s industrial version. PSRU types include gear, toothed belt and chain drive. Recreational Power Engineering Hirth engines and accessories, Powerfin composite propellers, and BlueMax 2 cycle aviation oil. That is because operating at these higher speeds would reduce engine TBO. And yes, we like to sell engine and gearbox systems. He has his ever-moving finger on the pulse of the state of the art in auto engine conversions for aircraft. Aircraft Engines that check all the boxes. He has his ever-moving finger on the pulse of the state of the art in auto engine conversions for aircraft. A lack of knowledge and analysis means more experimentation and test. Equipped with an experimental Chevy 4.3L V6 engine that can be sold with the plane or not. Learn how your comment data is processed. Most auto conversion kits cost around $30,000 by the time you have everything installed, including mount, cowl, and prop. The supercharger increases the power of the standard engine from 15 to 25 %, for added power during take off, climb, and when flying at higher altitudes. These characteristics drive the design features and compromises. An engine upgrade can breath new life into an aging airframe or transform the performance of an underpowered one. As this engine is sold without a reduction drive, it falls on the builder to choose which rating is most appropriate. Building a Tunable Carbon Fiber Induction Plenum. It does not mean that they fall apart. Radiators must be mounted in vibration-isolating rubber mounts to the structure. Crossflow Aero Corporation Altitude and humidity compensating, fuelinjected, watercooled, Subaru conversions. To illustrate the point, consider the ratings of the same V8 engine shown in Table 2. All coolant pipe ends must be beaded and should be mounted to the structure with cushioned Adel clamps. The engine has a Helical gear drive PSRU which allows the engine to produce optimum power while providing optimum propeller efficiency. Both volumes of "ALTERNATIVE ENGINES" (known as "the black book" and the "silver book") are compilations of past CONTACT! This is typical of all piston engines. 21. AGMA Class 6 to 8 are used in automobiles, and this is the minimum class that should be used on a PSRU. EPI, Inc. has worked on several engine conversion programs, including programs to develop STC'd retrofit packages to install the Orenda ™ certified 600 HP liquid-cooled powerplant into the Aero-Commander 685 and the Air Tractor 401 aircraft. Many builders of homebuilt aircraft look at the cost of certified aircraft engines and believe they can save money by using a converted automobile engine. Aircraft Auto Engine Conversions This Eggenfellner Subaru conversion lost power a couple days ago and Crashed. Also closing out many VW engine conversions. As the amount of heat rejected to the cooling system is approximately the same as the heat used to produce the shaft power of the engine, a properly sized radiator with good inlet and exit ducting is essential. The propeller shaft bearings should be sized to support the propeller thrust loads plus the gyroscopic loads caused by maneuvering. Only one bearing on a shaft can be fixed axially; the other must float to allow for thermal expansion. View Profile View Forum Posts Join Date Mar 2015 Location Charlotte, NC Posts 1. V-8 engine ratings depending on application. All systems should be examined to determine if a single-point failure can cause engine failure. The Corvair engine is a 164 cubic inch (2,700cc), horizontally-opposed, six-cylinder, air-cooled powerplant. Core in this case means the basic block, crank, rods, pistons, heads and valve train. L ast month we covered some of the differences between engines designed for aircraft and those that might be converted from auto use. Engine Basics: Detonation and Pre-ignition-Cline: 61. Magazine and Fiesta Publishing have offered two 8-1/2x11 soft cover books in the past, both unique, authoritative references dealing with automobile engine conversions for use in Experimental aircraft, unrivaled in scope and detail of content. The power absorbed by the propeller is given by: Propeller design and the power and thrust coefficients are beyond the scope of this article. The obvious differences between these two types of engines are weight and first cost. Introducing a New Redrive for Auto Engine Conversions - Deschenes: 72: A Chevy 4.3 Liter Engine in a RV-6A - Pitts: 76: APEX Turbine Powered Luscombe Silvaire 8E -Combs: 80 The primary cause for the lower reliability resulted from the lack of adequate communication between fellow experimentalists. Operating costs on most of these conversions HAS proven to be a fraction of the cost of a traditional air cooled engines. NSI Propulsion Systems Inc. Subaru automotive engine with reduction gear and variable pitch prop. Lone Star also offers specially designed carburetor, exhaust and intake manifolds specifically for VW aircraft engine conversions. Make sure no coolant pipes or hoses enter the cockpit. when you apply the cold, hard engineering realities, it turns out that most of the time, replacing a Lycoming or Continental air-cooled aircraft engine with a liquid-cooled piston engine is a bad idea. The upright versions are mostly used in trikes, light twins and replica aircraft that require a narrow engine package. KR-1 Direct Drive Engine Installation When you are comparing VW engines and engine kits for use in your sport aircraft, pay close attention to the prop hub and crankshaft selection - especially on stroker engines, i.e., 2074cc, 2165cc, 2180cc and 2276cc engines. All PSRUs should isolate the side loads from the gears, chain or belt from the engine crankshaft bearings. Do not mount them to the engine. Also the US distributor for Sub4 aeromotive engine parts and redrives. At least it is one of the few engines designed for a similiar duty cycle as an aircraft engine, and would probably be a much better package than an over stressed automotive engine. The low profile slant version places the engine at 70 degrees from vertical to fit more conventional cowlings. Each engine is built in both upright or low profile slant versions. Is this still true in the days of 1000 Hp Helephant crate engines (7 ltre supercharged), V8 Supercar engines that have the majority of components last indefinitely and now 600 Hp 4 litre power units are common. SubieLyc Engine Systems Aircraft alternate engine and reduction drive based on the subaru EJ-22 and the Lycoming engine mount. A very professional auto conversion of the Subaru EA81 engine by one of the many fixed wing pilots happily racking up the hours. Raven Honda Fit Engine Conversion(Pt. By Staff. 0. 03-20-2015, 07:18 AM #6. sledg77. Each engine is built in both upright or low profile slant versions. 276 hours of total run time. Coolant pipes should be joined with short straight pieces or elbows and can be high quality automotive silicon hoses. A typical 75-inch (6.25-foot) propeller should be limited to about 0.85 Mach or, at sea level: Thus the thrust required by the aircraft determines the propeller diameter (D4 in the thrust equation) and the sonic velocity determines the maximum rpm. Also, different types of oils have various additive packages, which may affect the engine materials.