Sam Kurtz set out to build an RV-7A. It seemed like an ideal power plant for the new LSA type of aircraft, if you were not into the Rotax Bombardier line of engines. Proprietor Bill Clapp is dedicated to expanding sport aviation and safety as much as possible, and his Spyder Corvairs fill the power bay in his Saberwing experimental airplane. But it’s also important to match the engine to your airframe’s needs and provide you with the performance required to make your overall investment worthwhile. There are two gearbox ratios available; some can accommodate hydraulically-controlled constant-speed propellers along with either left- or right-hand rotation. Airflow Performance or Avstar constant-flow, mechanical fuel injection is also standard, along with magneto ignition. Then there are simply used engines. Robert Helms, the main ULPower spokesman in North America says the engine remains technically unchanged for 2020; market acceptance of the brand appears to be growing., It’s not everyday an engine maker says its biggest challenge is finding enough of the right employees to keep up with demand, but that’s the current challenge at the compact, privately-owned Aero-Momentum where work mainly consists of converting various non-V-8 automotive engines into aero powerplants. Therefore a stock Continental accessory case would still work—if a moon-shaped shim was inserted in the gap—but Plumb wanted the better solution of modifying the case to fit. , As its website says, AeroConversions is a product line of Sonex aircraft. , For 2020, Auto PSRU’s is phasing out the VW350 gearbox for an updated version, the SD400 (the numerals indicate the unit’s horsepower capacity). His operation also includes firewall forward parts such as cowlings, spinners, props and so on for a number of applications (Zenith and Sonex among others), plus he’s always running some sort of builder assist or tutorial programs at his Cook County, Georgia headquarters. You simply check the $29,000 box on the kit maker’s website and wait for motor freight to arrive… That approach greatly simplifies sourcing such things as inlet ducts, exhaust systems, baffling and so on. , Corvair aviation engines are just part of the very busy operation involving Saberwing aircraft and Spyder Corvair conversion engines. Traditional six-cylinder aviation engines are more like $35,000 to $45,000. Other features are a cast aluminum construction, two mounting pads machined on the sides plus two, optional, power take offs for a propeller governor, vacuum pump or standby alternator. , Gearbox-equipped models turn higher engine rpm—as much as 4550 rpm—for increased power and slower prop rpm to support longer propellers. , It may look like a VW, but it’s really the VW engine completely re-engineered as an aviation engine—the Cadillac of VWs if you will. Andy Higgs is the personality powering AC Corporation, where performance is the word and clean-sheet designs are the order of the day. This is a critical but often overlooked point: No one wants to build a ground-hugging dog, even if the goal is gas-sipping cross-country cruising or just a Saturday-morning pancake chaser. A drop-in replacement, magneto-like, electrically self-generating unit, its big potential is adjustable ignition timing for better fuel economy, along with no maintenance or overhaul requirement for the life of the engine. Contact Info : ABC Kustums Mike Bishop 864-978-8379 Kenneth Davis 864-706-9650 [email protected] [email protected] gmail.com The same six-cylinder is rated at 182 hp at 2800 rpm should you be using a long prop. Pauter VW roller tip rocker arms are among the strongest and most durable assemblies on the market today. , CAM wants to emphasize these engines are viable, reliable, real-world choices for WW-I replicas and that they’re in rotary business for the long term. Parma Technik in the Czech Republic (https://www.parmatechnik.cz/nove-motory/) are still building the old Walter Mikron III direct-drive, hanging four cylinder inline engines with 82hp. It’s best to have a thorough understanding of which wire typically goes where in electrical systems before attempting to install such e-motivation in your home-built. Optional sumps are either Titan’s vertical or the Superior Air Parts cold air intake with a forward-facing throttle body inlet. , There are two AeroVee engine kits, the 80-hp, 2.1-liter naturally aspirated engine along with a turbo version rated at 100 hp. All other parts are new. Moose Mods specializes in compete firewall-forward kits using the Camdrive 500 PSRU for the Murphy Moose, with up to 530 hp available at $45,000 plus prop and governor. AeroConversions product designers and engineers are dedicated to providing … Furthermore, Hirth two-strokes in our guide are designed strictly for aviation, meaning they are tuned for lower rpm and greater durability than typical ground-based engines. Their english website is pretty basic at the moment and those engines are not exactly state-of-the-art anyway, but could be interesting for builders who want a low-profile inline engine that was actually developed for aeroplanes in the first place. Weight naturally rises to 260 pounds, but either 100LL or mogas can still be run., Multiple firewall-forward kits are available from Viking to support these engines in Zenith, RANS, Van’s, Kitfox, Glastar and other airframes. COOLIDGE, AZ 85128 (520) 723-5283. , Because Hirth engines are manufactured in limited, non-continuous runs there can be a 4 to 6 week lead time when ordering, so planning ahead is smart. , Before talking options on the Thunderbolt engines, we should note a balanced crankshaft and reciprocating assembly is standard, as are ported cylinders and limited number of paint colors (more colors are optional, as is chrome detailing). 1/2 vw (half vw) engine conversion plans for. 1500 cc VW aviation conversion engine on frame with wooden prop and spinner. , Certainly the Volkswagen-based engine world is a price-conscious market, but even so Hummel Engines stands out as the minimalist’s choice. , Core to AeroMomentum’s conversions is a helical, spur-gear prop reduction gearbox. Electric start, Lithium battery, Big Main tires, Steerable nose wheel w/large tire, Wire rudder brace, Full instrumentation in pod, after … Furthermore, Rotax says the 912’s market share is starting to transfer quickly to the 912 IS and turbocharged 915 IS engines, both of which feature electronic fuel injection. While the project was announced several years ago, it is still in development and is not for sale at this time. Titan simply machines its cases to accept the steel thrust washers first seen in Continental 470/520 engines to essentially eliminate this issue. More practically Coy can also source a factory overhaul—now a fixed $21,500 if you have a core. These smaller Auto PSRU’s are also good for inline six-cylinders for narrow-nosed aircraft, WW-I replicas and so on. This can be a meaningful amount of time with some of the overseas makers, so if you’re considering something such as a Jabiru or Rotec radial, definitely call ahead well in advance. P-MAG and LightSpeed Engineering Plasma series are popular. They seem to offer somewhat better power or performance depending on the application due to either higher engine output or the propeller gearing. , There aren’t too many homebuilts that take all the muscle a 621 cubic inch M-14P radial can dish out, but if you want a new $50,000+ one from builder Motorstar Romania then Coy Aircraft Sales is also Motorstar NA, and they can make it happen. Bill reports about two years and 300 hours of turbo prototype engine run time so far with no issues, and more beta engine testing to come. Titans allow front or rear propeller governors as the customer specifies, too. Titan has one helicopter customer taking a slow, steady supply of these, along with the occasional RV-10 builder. Their combination of lower cost and simplicity via air cooling, direct-drive and simple slide-carburetion have made them popular at the populist end of the light aviation market, including the Arion Lightning, which is appropriate as Arion is the Jabiru distributor for North America. Alternately, the larger shops keep surprisingly large inventories of core engines and parts on hand, so if you are starting from scratch, the shop can often supply a core to start from, for a price, of course. That’s pretty much the entire line of current Lycoming production save the eight-cylinder 720, which can still be had as a certified engine if you really need that much oomph. Good looking, spacious and well equipped, but the wow-factor is only surface-deep. The sleeve can be field-replaced at overhaul time. It is the SD400 box beefed up with an external brace, much stronger prop shaft, larger bearings, different splines on the top gear drive, all to better withstand gyroscopic loads. Embracing the experimental airframers years ago has been a big part of why its engines—or clones thereof—are seen more often than any other in the burgeoning build-it-yourself airplane neighborhood. Be aware that even with Lycoming and Continental, the engine makers keep few of their engines in stock. Best known for his AX50 cylinder based on Lycoming 360/540 parallel-valve architecture, Higgs has combined that cylinder with his own Lycoming-based crankcase and intake designs to arrive at some very modern-looking flat engines that will fit under common kit-aircraft cowlings. homebuiltairplanes.com is a dicussion forum centered on homebuilt aircraft. There are distributors, but they have no timing component as timing is fixed. Hummel Engines have powered aircraft designs like the Sonerai, Sonex, Ultracruiser Plus, Aerosport Quail, Avid Flyer, Corby Starlet and others. On Van’s RVs, of course, followed by the back country airplanes according to Lycoming. To provide slimmer packaging, Plumb has spent the last two years redesigning the oil sump and case to accommodate the intake runners. , Notable improvements are a reinforced magnesium case, one-piece crankshaft with integral propeller flange (like Lycoming, Continental, et al.
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