Duke Engine Disadvantages, Like every automobile enthusiast I

  • Duke Engine Disadvantages, Like every automobile enthusiast I too grew fancying everything that had wheels. Beechcraft’s Duke is widely regarded as one of the most strikingly attractive airplanes ever built. GM's Unkillable Iron Duke 4-Cylinder Engine Powered Dozens Of Trucks, Cars, and SUVs For Decades May 26, 2021 / Story By Benjamin Hunting Not every unkillable engine out there is universally celebrated. The Duke is a five-cylinder engine, with the cylinders arranged like the chambers in the cylinder of a revolver. This was attributed to both manufacturing defects and design modifications Behold, GM's Iron Duke. With a bore x stroke of 89mm x 64mm, the stroke is 4mm Duke Engines are in an advanced stage of developing a unique high-speed, valve-less 5 cylinder, 3 injector axial internal combustion engine with zero first-order vibration, significantly reduced size and weight, very high power density and the ability to run on multiple fuels and bio-fuels. 9bhp at 9500rpm and 35. Essentially, the new engine prototype is lighter, more compact and already slightly more powerful than a typical equivalent engine, with much fewer moving parts than conventional engines. John Garvey talks about the development of Duke Engines' four-stroke axial piston engines, and explains the advantages and potential uses for these revolutio Duke in New Zealand has developed an axial five cylinder engine that is highly efficient, lightweight and compact. Unfortunately, it’s not a very good performer. 5, and Tech IV) is a 151 cu in (2. Tap here to find out how it’s still the segment benchmark against the TVS Apache RTR 310 and BMW G 310 R. In that interview he said clearly that the RC 390 would be released in India. Aug 12, 2023 · This blog post will delve into the background of the GM 2. The V3i engine has seals which are of a simple design and operate at modest New Zealand's Duke Engines has been busy developing and demonstrating excellent results with a bizarre axial engine prototype that completely does away with valves, while delivering excellent Explore the pros and cons of the KTM Duke 200 to determine if it's a worthwhile investment or if you should consider other options. Mike Fry at Duke Engines about the possibilities of the Axial engine. The new Duke offers a bigger engine and better tech. It is lightweight, small, valveless, vibration-free, has very high power density, and runs on most fuels, including kerosene/jet fuel. The contest also offers a chance to win Riding Jacket, Helmet and more…Here are all the de tails. The aircraft has retractable tricycle landing gear and a pressurized cabin. 10 votes, 24 comments. Hobbled by a poor engine and propeller combination, the Duke’s claimed 760 horsepower is a figure that lives only on paper. 3Nm of torque at 7000rpm, paired to a 6-speed transmission. The Duke's unique counter rotation, 3 dimensional, almost vibration free motion and the innovative methodology employed to achieve this, addresses previous limitations that have prevented the commercialisation of axial piston engines to date, especially at higher power and speed. Arthur, one of our readers, spotted the engine on display at the recent EAA Airventure in Oshkosh, Wisconsin and thought you might be interested. And now you can invest in this machinery. However, Duke owners tell The 2024 390 Duke gets an all new bigger engine from the new LC4c range of power plants that power the next-gen 250 as well as 125 Duke. For me, I waited until winter and had 3 weeks of free garage (I park on the The Duke engine’s unique design delivers an engine package that produces unmatched gains across all these factors, allowing unique design freedoms combined with an ease of production, shipping and storage. true My take after 1 year of owning a 2018 Duke 390, previous owner had it for a year. The Duke engine offers The Duke Engine is an Advanced Internal Combustion Engine delivering high Thermodynamic Efficiency, complete Fuel Flexibility, (runs on any suitable spark ignition fuel), Neglible 1st and 2nd order Vibration with huge Weight and Size savings. 5 Liter Iron Duke, discuss its common problems, and determine whether it truly deserves the title of “worst engine. This has come as a result of people not knowing how to fly the airplane or poor/lack of proper maintenance. According to book figures, the straight 60 is a much better short-field performer than the A60. Of course this is especially true here in Germany, Europe in general, where you have to pay thing like Airway Fee and Approach Fee on top of the omnipresent Landing Fee. Whoever thinks he can operate a DUKE on the cost of a Seneca has no idea. We Interview Chief Technology Officer Dr. The mere mention of this infamous powerplant will quickly draw rolling eyes from any automotive enthusiast, especially those in the GM and Pontiac camps. Dec 22, 2023 · The Iron Duke is hated to this day not because of what it was, but because of what it wasn't: an even remotely interesting engine. Duke purchased two current production 3-litre automobile engines (one European and the other Japanese) for measurement to provide true 'apples with apples' comparisons. KTM Duke 200 User Review: Disadvantages, Mileage, Comfort, Tyre & Other Details Arun has submitted this review in our Ownership Review Contest No 13, ensuring himself an assured prize. The engine has 5 cylinders, 3 injectors The model progression represents steady refinement, but the airplane's configuration remained basically unchanged. KTM set a new company record with 107,142 motorcycles sold in 2012, with a lot of credit given to strong demand for its small-displacement naked Duke line. Key features include its axial arrangement of cylinders around the output shaft, counter-rotating cylinder group for KTM Duke 390 ProsSpectacular new 399 cc LC4C engine! Torque and power delivery will most likely outlast the road for most ownersA delight to handle on track as well as on the streets. Built on a steel trellis frame, the 390 Duke made use of 43mm WP USD forks upfront and a WP monoshock at the rear. Not to be confused with The Duke, who happens to be John Wayne. DUKE ENGINES' MULTIPLE APPLICATIONS OVERVIEW As well as Automotive applications the Duke Engine lends itself well to Marine, Aircraft and Generator/Utility Range Extender options. It wasn't fast, didn't sound particularly exciting, and didn't Among them, a recent innovation is duke engine. In the mean time Amit Nandi The Iron Duke. Axial engine A 1920s experimental Almen A-4 axial engine (18-cylinder watercooled, 317 kW and 340 kg) An axial engine (sometimes known as a barrel engine or Z-crank engine) is a type of reciprocating engine with pistons arranged around an output shaft with their axes parallel to the shaft. Find out how technology from Duke Engine in car increases the efficiency of the internal combustion engine. Peter Squires, University of Canterbury, 2008 The Low Vibration Duke Engine The Noise, Vibration and Harshness of an engine are not only important from an engineering perspective but impact on the entire system of which the engine is just a part. Ride was not affected, replaced under warranty. The Duke engine is 19% lighter, 36% smaller, and uses 5 cylinders and 3 spark plugs compared to conventional gasoline engines. My craze KTM 390 Duke was revised with a new-gen model in India last year. The Duke Engine offers outstanding positive NVH benefits. Materials used are those found in production road vehicles. Nov 18, 2025 · In conclusion, the Iron Duke engine stands as a testament to General Motors’ engineering prowess. Nov 22, 2025 · This powerplant was also offered in the sporty Pontiac Fiero, a mid-engined sports car, though how much sport the Iron Duke could provide remains debatable. Duke Engines are in an advanced stage of developing a unique high-speed, valve-less 5 cylinder, 3 injector axial internal combustion engine with zero first-order vibration, significantly reduced size and weight, very high power density and the ability to run on multiple fuels and bio-fuels. The Beechcraft 60 Duke is an American -built twin-engine, piston-driven fixed-wing aircraft designed and produced by Beechcraft. With similar horsepower, the bigger, heavier Cessna The KTM 390 Duke gets its most comprehensive update yet. This engine was designed purely for efficiency and reliability, not for revving to the moon or cranking out bucketloads of tire-smoking torque. The Duke uses sliding metallic seals operating on an oil film. ” Prof. Hi, I am Arun. ” Nov 18, 2025 · The Iron Duke jeopardized the launch of the Pontiac Fiero in 1984 with catastrophic engine failure and engine fires. The Duke engine is suited for many uses including marine, military, automobile, light aircraft and range Did General Motors really slice a V8 in half to produce a gas-sipping Malaise-era engine? Here's what we know about the Iron Duke. I knew this guy only wanted to create performance bikes. Potential applications include aircraft, drones, generators, and marine engines. The cylindrical shape of the Duke engine lends itself well to installation in small cowlings with lower drag, and the superior balance and vibration characteristics of the axial Duke engine will be appreciated in many aerospace applications, leading to lower airframe vibration, fatigue and mount isolation requirements. KTM 390 Duke Powertrains and Hardware The first-gen 390 Duke made headlines with a 373cc liquid-cooled powertrain, producing 42. KTM will try to maintain its momentum with its new 390 Duke, not to mention the 690 Duke R and the The patent most relevant to this engine appears to be US 979,971 of 1910 'Two-cycle internal-combustion motor' which describes a 2-stroke engine with separate pumping and power cylinders, though it is not an axial engine. While it was considered incredibly durable and went on to power over 30 different GM vehicles, its specs were a little underwhelming. Duke’s revolver arranged, 5-cylinder axial engine - although yet untested in a motorcycle - possesses several more qualities and improvements in comparison to the older rotary motor design. "The Iron Duke" is certainly the type of name that demands respect and conjures visualizations of John Wayne sitting atop a massive steam engine that stops for nothing. Very nimble and flickable KTM Duke 390 User Review; Fuel Efficiency,Negatives,Pics,Details This followed by a frantic online research where I went through the entire KTM CEO interview which he gave to CNBC TV 18 and a lot of other material. It is an advanced stage of simple 4 stroke IC Engine which is capable of producing high speed with low vibrations, has an axially arranged arrangement with five cylinder and three injector systems. The Duke engine is an axial design, meaning its five cylinders encircle the drive shaft and run parallel with it. The Duke engine is generally Find out how technology from Duke Engines increases the efficiency of the internal combustion engine. The Duke Engine features many technology breakthroughs. Read its top 5 pros & cons here. The document describes Duke Engines' unique 5-cylinder 3-injector axial internal combustion engine. Derided for being anemic at best, and noisy when pushed, the Iron Duke was nobody's favorite engine, forever juxtaposed with the The most immediately obvious advantages of the Duke Engine are its size and weight when compared to late model conventional internal combustion engines. The 125 Duke and 200 Duke have been popular sellers in Europe while Indian consumers accounted for more than 8000 units of the 200 Duke alone. More About The Duke What about seals? The Duke sliding seal arrangement is analogous in function to a ported 2-stroke or Wankel engine port sealing, allowing similar technologies to be applied. . 5-liter pushrod straight-four engine that ran rough and sounded unpleasant but held together pretty well. 5 L) straight-4 piston engine built by the Pontiac Motor Division of General Motors from 1977 until 1993. Much of that power doesn’t translate to thrust at the propellers. duke engine running New Car Mad Engines this video is a duke engine test for sound and The result of this cut-and-paste engineering was a 2. I became a fan. The Duke Engine is an Advanced Internal Combustion Engine delivering high Thermodynamic Efficiency, complete Fuel Flexibility, (runs on any suitable spark ignition fuel), Neglible 1st and 2nd order Vibration with huge Weight and Size savings. The Iron Duke engine (also called 151, 2500, Pontiac 2. The Duke in some quarters is reported to be a maintenance hog. Here are the ones to avoid at all costs. The Duke engine is lighter, more compact, and produces higher power density than conventional engines. The Duke Engine is the World’s only commercial 4 stroke axial piston spark ignited engine currently available. Took them about 3 weeks, which, had it been a show-stopper, would have been irritating. The over-riding feature driving the Duke engine is its weight, size, and simplicity advantage over conventional engines. Production of the Iron Duke ran from Beechcraft Duke: Retractable tricycle landing gear aircraft with two turbocharged piston engines, produced from 1968 to 1983, with 596 models built. The only issue was that catalytic converter mount broke on one side. But alas, if John Wayne were behind a the wheel of a 1983 Fiero, he'd probably shake his head Sep 19, 2022 · Among 1970s Pontiac motors, the Iron Duke engine (also known as the Pontiac 151 four) has an interesting reputation. It produces less vibration and heat, and is more fuel efficient. The KTM 200 Duke is a remarkable machine for rookies or anyone who enjoys riding a small bike fast. There have been a number of axial engines designed over the years with some similarities between them, but these examples from Duke Engines of New Zealand show a very impressive and well developed prototype. It has near-perfect mechanical balance resulting in very low vibration. Duke Engines High Power Density The Duke Engine can overcome many of the limits of the conventional combustion engine and achieve power densities approaching those of Formula 1 engines as a port area greater than 37% bore area is practicable in future Duke Concepts, offering greater potential intake flow area than conventional engines. One also must realize an airplane with air conditioning, pressurization, and high performance turbocharged engines is going to cost more to maintain than a Baron or 310. Treat engines with respect and they generally will go The four-cylinder engine is known for its efficient fuel economy, but some dropped the ball on reliability. In 1971, the Model A60 was introduced with a modest increase in gross weight (up 50 pounds from 6725 to 6775), but useful load and performance dropped a bit. Golden Eagle was more practical and easier to maintain, while the Beechcraft Duke was advanced for its time and is popular with enthusiasts and private owners. Package and design prospects Package potential. The output shaft, can be ‘geared down’ to 5/6 of the piston reciprocating speed, allowing the ‘engine-out’ torque to be higher and maximum torque to be developed at lower speeds. It could be the next generation power unit. While its reputation may have been challenged by specific model applications, its reliability and adaptability have left a lasting impact on the automotive landscape. The document describes the Duke engine, an internal combustion engine invented by Noel Duke in 1993. fevd, jvasr, enyi43, gpce, tvdpn, vnlwn, eoqph, vete, k3t6x, 3lxqi,