Why are jet engines so expensive. Though the branding is different.

Why are jet engines so expensive In fact I cannot think of even one aircraft that has this. So why is it so expensive? Airplane engines are expensive due to the immense research, design, and testing that goes into the development of each engine. Today, there are many different models of jet-surfs on the market, but they are quite expensive: the minimum Jul 4, 2019 · On airplanes that do put the engines on top, either the engine is so far aft that it minimizes the effect and it might was well be mounted on tail pylons (like the Honda Jet), or the engines are mounted way forward to minimize the effect, plus gain from having the high velocity fan stream across the top, or it's propeller driven and the propeller flow field mitigates the Oct 1, 2024 · The integration of jet engines has greatly facilitated the advancement of aircraft. Theoretically -in terms of thrust & lift & drag- virtually every jet fighter could easily stay Why are the small airplanes so expensive? Do you know one single engine airplane like Cirrus can cost 4 Lamborghinis?This first episode of Airplane Economics 방문 중인 사이트에서 설명을 제공하지 않습니다. Feb 27, 2023 · This design made sense back when 2-engine airliners were not allowed to fly overseas routes, but 4 engines became expensive, so they opted for 3 engines. It's unlikely you will see many jet aircraft of the size of the Embraer ERJ series (30-40 passengers) with under wing engines. Turbofans are, much like any engine, does not like having anything other than air and fuel being put through it. The long cylindrical afterburner chamber, plus the variable geometry exhaust aperture, acted like a tunable organ pipe. They put out a whopping 1000+ horsepower while only having a 1. This means costly regular operating maintenance for traditional piston engines. Why are the damn things still so expensive? I would have thought that the steady progress of improved manufacturing techniques and materials would have put some downward cost pressure on them then again, that's exactly what has not happened with Lycoming and Continental over Oct 5, 2022 · I’m not sure if this is true or not, but I wouldn’t be surprised one bit if jet airplanes (Boeing, Airbus) are single handedly the most expensive products for sale on the open market. So they use engines that are kind of in between. Long Answer. Though the branding is different. Older jets such as the p Pratt and Whitney jets of yesteryear did not have the metallurgy and the Adding thrust with tail mounted engines pushes the nose down, not up. Even a single-engine plane costs upwards of $100,000. Jan 30, 2018 · This article will try to explain why, in order to make air travel cheaper, one of the heaviest, rarest and most expensive materials known to mankind is added to the alloys used in the turbine blades inside jet engines, May 24, 2024 · Jet engines are extremely expensive, primarily because they are becoming more sophisticated and fuel-efficient. The more common jet boats are from Yamaha, Scarab, and Sea-Doo. A few Oct 18, 2023 · They were already very expensive and came super late but now they are strictly worse than engine 4. The F-35's engines cost around $15 million, while widebody commercial jet engines can cost double that or even more. You'd be adding cost and sacrificing efficiency for no real gain. The company’s cars are renowned for their handcrafted construction, premium materials, Aug 7, 2022 · In a turbojet or turbofan engine the length of the combustion chamber has everything to do with the efficiency of the engine. Also, gas turbines are basically jet engines too. Home Why jet engines are so expensive? Jet engines are so expensive, because they are getting more and more sophisticated and fuel efficient. You can get the same amount of thrust by accelerating a little bit of air a lot, or accelerating a big amount of air by a little. These jets, like the Cirrus Vision Jet, are perfect for private pilots or wealthy owners and have Jul 30, 2021 · Apparently, thrust matters a lot more than lift sometimes. While the sheer number of parts may seem daunting, it’s a testament to Apr 29, 2023 · So the math doesn’t add up if a tank cost $160 and gets you 340 miles max. So long as attitude control and structural strength can keep up yes. Designed for high-speed combat missions, they comprise technologically advanced materials Nov 25, 2023 · Many more and significantly complicated parts. Nov 8, 2023 · Modern jet engines are engineering marvels that require novel materials and extreme machining precision. They massively reduce your range (-40%) and reduces the amount of thrust (-5) while slightly increasing speed (+100), cost (+1 IC and +1 tungsten), and fuel usage (+. If the expensive light blub isn't on then you are guaranteed that Jun 15, 2020 · If jet engines are smaller in diameter than propellers, Basically, a jet engine accelerates the air flowing through it by more than a propeller engine of the same thrust, right? If so, propellers should be way more efficient because, by accelerating a larger mass of air, they're able to generate more force Jun 7, 2014 · Jet engines work by drawing air in from a series of fans, the air either goes into a series of compressors or gets bypassed. Explore the concept of supply and demand and its impact o That's why you only see jet engines in fighter jets that need to go very fast, while slower airplanes like small hobby planes use propellers. Such engines are fixed-pitch propeller engines with relatively low horsepower (similar to that of a large automobile engine). Fuel efficiency, reliability, weight, and safety are mandatory for each engine and the use of exotic and new Piston engines used on small General aviation aircraft such as the Cessna 172 can cost between $40,000 and $70,000. At worst, Jun 16, 2021 · Pros and Cons of Leasing a Private Jet; Additional Fees When Flying Private; Empty Leg Flights; What Net-Worth Makes Flying Private Viable? Ways to Get Cheap Private Charter Prices; Why Is Flying Private So Aug 26, 2022 · Photo: amazon. Commercial engines and some military jet engines are designed to be quiet on purpose. In a day when $30,000 does well to buy you a new 200-hp engine -- for $150/hp -- other forms of propulsion start to look pretty good. Small piston engines that power light aircraft (with a passenger capacity of 2-4) are che Turbo props have jet engines. Mar 23, 2018 · Why is building jet engines so tough for companies from other countries? jet-engine; Share. What Are The World's Most Expensive Jet Engines? Commercial Aviation. Is mass producing a V8 really that expensive? I am not talking about hand built engines or anything super niche TL;DR - what makes one mass produced engine so much more expensive than another Ever wondered why jet engines are so loud? In this quick video, we explore the science behind jet engine noise, including the role of air compression, exhaus Jun 9, 2024 · We still use wheels, after being invented thousands of years ago!Why? It is an efficient means to be able to transport something. But that added sound damping comes at a price called increased weight. To learn more, you can also read our posts on why BMWs are so expensive, why Mercedes are so expensive, and Nov 24, 2021 · My question, then, is this: Why can't a jet engine be used to turn a driveshaft the same way an ICE turns a driveshaft? These exist. But even before Covid hit the industry, airline takeup was slow Aug 6, 2021 · via Reuters. The most expensive engines are those of older aircraft. While airplanes are incredibly expensive, the Why Jet Engines Are Very Reliable Jet engine turbine closeup. Jan 4, 2025 · Even Toyota, whose Camry still has a V6 engine, admits that the six-cylinder engine’s days are numbered, claiming that it currently accounts for only approximately 5% of Camry sales. Turboprop engines have their peak efficiency at a speed of ~ Mach 0. Today, just one F-35 costs $110 million. Oh yeah and it's one more place for ice Okay, so FOD is Foreign Object Damage. When considering the cost of producing a boat, it's important to look beyond the tangible figures and consider the intangible value that contributes to the overall cost: the luxury effect. While the fuel type may be cheaper, the cost of retrofitting an airplane with a diesel burning engine is not. Safety The most important consideration for aircraft and jet engines is safety. As a result, the price that each passenger has to pay is much higher. You inject some fuel into it and Apr 13, 2023 · Sure, engines and landing gear are the big-money parts, but CNBC says that almost every airplane part is expensive, so everything from wing flaps to drink carts can Jan 15, 2021 · One of the complications for aircraft manufacturers with engines mounted in the fuselage is that it makes the model entirely dependent on the type of powerplant for which it has Feb 25, 2020 · Why Jet Boat Engines Are Reliable. S. And why the 737 MAX needed the MCAS system. Apr 28, 2021 · In aviation forums and at small airports aircraft owners and pilots offer a familiar refrain. May 16, 2016 · Generally, smoke comes from incomplete burned fuel. So jet engine designers can make small diameter engines that move the air *really* fast, or Birds would be sucked in anyway and diced bird isn't significantly less destructive to jet engines than what makes it in right now. The jet engine is one of them. Normally, a jet engine burns a very lean mixture (due to turbine temperature constraints). Many of the other downsides (lack of Jet A1 Nov 22, 2024 · Ever wondered why jet engines are so loud? In this quick video, we explore the science behind jet engine noise, including the role of air compression, exhaus Jun 28, 2022 · Why Are F1 Engines So Expensive? Formula 1 engines so expensive because they are some of the most complex and intricate engines in the world. Extensive use of titanium alloys for example, which, being exceptionally strong, are of course very difficult to work with. Nov 26, 2020 · $\begingroup$ Another reason is to reduce the shearing force on the engine pylon. You could buy two Lambos for that price. Modern propeller planes use turboprops. I know many “boat experts” will scoff at the idea of a boat having a jet ski engine, but let’s break this down. Jet propulsion – if you don’t need to go to open seas and want Sep 30, 2021 · Here are 10 reasons Rolls-Royce cars are so expensive. Small bits of dirt or sand is already bad, and causes premature erosion on the Apr 22, 2014 · One tends to see turbine engines used in commercial operations, 1000s of hours per year, and pistons in private operation 100s of hours per year. Most of these parts are constructed using expensive materials. Some engines are reliability wonders, have logged between 30 Sep 14, 2023 · Jet engine overhaul prices are usually between $200,000-$300,000 per engine. Video. The last civilian airliner using the TF33's were retired nearly two decades ago, so the spare parts stockpile is thinning out. I mean, on a horsepower-per-dollar basis, they're way behind it. I know the quality is great and detail but does it really cost that much to make the model. Apr 5, 2022 · The older engines that it is using are aging and it's taking more hours to maintain, and parts availability too. AOPA joined forces with the FAA and other aviation Pure jet engines aren't efficient until a certain air speed is reached. Its not high octane and it is actually very low octane even compared to regular unleaded, as a matter of fact, it’s not that far off of Diesel fuel. U. Unless your airplane is going to fly a lot it would take decades to recoup the costs. 7% over the last 12 months, so more and more consumers are Mar 22, 2015 · Also they hold their value far better, they can last way longer than a gas engine if ran properly, and they also get fairly good mileage as well. Feb 12, 2021 · Keeping birds away The other reason cited for adding spirals is to help prevent bird strikes. Weight is Jan 25, 2021 · These require a suitably-large engine casing to fit. New comments cannot be posted and votes cannot be cast. What was the point of this nerf? If you really wanted something fast with no range Jun 30, 2014 · The very simple explanation for the large discrepancy is the nature of the Jet Engines compared to the nature of the pistons. Fuel octane rating is basically a fuel’s resistance to burning or detonating from compression. The requirement for high-quality crude oil was (for one example) why the war in North Africa was so important during the second world war. 7, and turbojets don't reach peak efficiency until somewhere above Mach 1. However, one question many boat enthusiasts and potential buyers ask is: why are boat motors so expensive? At first glance, the price tags on boat motors can be staggering, especially Hey there jet engine designer. So we know they’re powerful, but how do F1 engines manage to be so efficient? F1 Why are electric cars expensive? - BBC Science Focus Magazine Oct 3, 2013 · Caroline - So, a jet engine works by, air goes in through the front and is compressed as it moves through the engine. Several million dollars. The thing that makes jet engine manufacturing Oct 12, 2016 · Exhaust noise is consequently two to three times louder, unmuffled, and more difficult to silence because of the lower frequencies produced by the slow engine. Small engines like this are never going to be operating above the speed of sound, so would never be able to reach an efficient operating regime. Follow edited Mar 23, 2018 at 17:34. Jun 15, 2024 · Single-engine jet aircraft would struggle to compete with multi-engine jets in terms of speed, range, payload and performance. Whether you are talking about airlines or private jets the cost to overhaul an engine is quite significant. Can someone please explain why? My car engine goes thousands of miles (100+ hours?) without so much as an There are plenty of little mini jet engines you can buy right now for only a couple hundred bucks that are essentially made by individuals. One Boeing 717 alone, known to be one of the smallest commercial aircraft sells for an astounding $22. Sep 21, 2018 · Why don’t aircraft manufacturers produce jet engines in-house, rather than buy them from Rolls Royce, GE, and so on? This question was originally answered on Quora by Kynan Eng. $\endgroup$ – Mar 24, 2023 · Jet engines are truly remarkable pieces of engineering, with thousands of parts working together to keep planes flying safely through the skies. Manufacturers Dec 20, 2001 · Jet Engines Mounted On An Angle? #10545135. Likewise, most of the big plane designs are either civilian (passenger jets) or the exact opposite of stealth (military cargo planes), so it's not like you can just arm or militarize an existing big design. However, there are a lot of factors that determine why diesel trucks are so Feb 8, 2015 · The engines are owned by the airline or aircraft owner. Nov 9, 2023 · You underestimate just how much "suck" was present in those early jet engines. How much profit are they actually taking in. Jet engines have to be lightweight, robust, fuel Apr 25, 2018 · In particular, I was curious about what makes jet engines so expensive compared to piston engines. 6-liter capacity. These engines will eventually require less operational maintenance, but they’re not quite ready yet. The PT6 was designed in 1958 and has been flying for nigh on 60 years. Omar Memon. Bird ingestion into aircraft is a dangerous and expensive problem. 1. We might hate on certification, but I feel this is the real reason: it's priced at what the market will bear. So why have engines continued to grow? Turns Dec 6, 2021 · The "flying wing" concept isn't often seen in smaller military jets so it's not like you can just scale up an existing small design. Engine parts, particularly the turbine/compressor blades, must be extremely high quality. FI’s value of Dec 20, 2023 · Military aircraft take a long time to develop and are produced in relatively smaller numbers, increasing a program's total cost. Mar 13, 2021 · This is why jet engine manufacturers try to increase the engine pressure ratio (EPR) as much as possible. 4, turbofans at ~ Mach 0. A new (2022) Cessna 172 costs $680,000. In the case of Honda, consumers Feb 3, 2024 · Military engines, due to their specialized design and operational needs, often surpass the cost of commercial jet engines. A lack of semiconductor chips has resulted in major production problems from most car brands. A jet engine Jan 15, 2025 · Most regional jets are too small for engines under the wing. They're intended for RC planes, but they are legitimate jet engines, and you could just scale one up if you wanted to. Over the thousands of years, the wheel has improved a lot though: wood, metal, rubber Inboard jets are slightly more favourable in this respect, but comparing like for like with an outboard with a prop and the same outboard with a jet conversion, you’ll generally find about a 30% loss in horsepower in the jet version, largely Jan 15, 2025 · So not only are the engines more expensive in the first place, fitting them is very expensive as well. Why Jet Engines Are So Expensive. 1 billion last year, versus 2019’s forecast of $89. 6 billion. Navy, U. Aug 6, 2023 · Formula 1 car engines are incredibly efficient. Sep 2, 2022 · Lifecycle costs are a different matter, and early jet engines had a time between overhauls that could be measured in tens of hours. Most indicator lights on the ground don't really have all the power routed straight through them to a motor or whatever. Why Are Supersonic Engines So Complex? By Dr. If some prop-engines have contra-rotators, I The latest and exclusive jet engines coverage from Simple Flying. Feb 13, 2023 · I’m just legitimately curious what makes them cost so much. user8792 user8792 $\endgroup$ 7 and Sep 28, 2022 · If you check out the prices for diesel trucks, you’ll find that buying one can cost you a lot of money. Unlike engines that power land-based systems or vehi Aug 21, 2023 · The engine for the vehicle makes all the difference. So turbines dominate at larger sizes for all users. Jan 11, 2014 · Why Do Fighter Aircraft Cost So Representatives from districts that produce expensive The days in which the Soviet Union could use MiG-23 airframes as Mar 29, 2023 · Jet engines are expensive machines because of the use of novel materials, precise machining, and technologically-advanced systems. That's why you see afterburners on fighter jets. The next generation was more capable; most fighters in Korea and many in Vietnam were single-engined. They are not called "jet" engine but gas turbine engines. Sep 20, 2024. A well-researched and China is under sanctions from the US, so they can't purchase any jet engines for military purposes and russian engines are pretty shit, so shouldn't there be a demand for domestic engine production? (and they are expensive--that is Old propeller planes used piston engines. The Jumo engines on the Me 262 (and just about every single other major Nazi jet) for example, lasted--in the best possible conditions--about 24 hours before needing to That's because the light bulbs are part of the circuit. Let's say that you go shopping for a new car, and one car gets 1% better gas mileage that the other. Mar 2, 2009 · I was just wondering why Gemini Jets are so expensive. A recurring theme that came up, again and again, was the cost of quality control, and related factors like product liability. Share Apr 26, 2022 · SAF – Sustainable Aviation Fuel – is a new type of jet fuel that promises to curb carbon emissions by 80% on average. 14). As engines get larger and more powerful, piston engines get more expensive and complex because they are limited by engine knock. I knew someone would take the bait. Why Are Rolls-Royce So Expensive? (Top 10 Reasons) 1. Unfortunately, at lower altitudes Temp & pressure limits would be exceeded so, to produce a given amount of thrust eg maximum or some cruise setting, the RPM must be reduced from maximum. Then too, I think turbines actually place a lot less stress on their components. Fixed wings have an engine and a prop, or just an engine (jets). Aug 7, 2024 · These days, it’s expensive just to go where you need to go every day. However something not many people know is that services and repairs are also far more expensive as the components of Diesel engines are very expensive. I think the difference is the cockpit sits up extra high so the crew can have an unobstructed view in every direction. the Space Shuttle) can fly and land by just going fast enough. After landing the A380, the controls to shutdown the engine were not working. More specifically, modern jet engines don't get most of their thrust directly from the hot air going out the back of the jet engine. Nowadays, technology is much more advanced than before. Jan 15, 2025 · Why are contra-rotating jet engines so rare? Such a jet engine would have contra-rotating turbines, or contra-rotating compressors, or both. Each engine can cost upwards of $10 million to manufacture. The compressors compresses the air where it gets extremely hot, fuel is sprayed into the combustion chamber and ignited the hot gasses pass through a series of turbines connected to a shaft to the compressors, then it passes again Mar 13, 2015 · Jet engines can be very large heavy and expensive items. The local airflow behind the wing is tilted back ELI5: In modern aircraft, why are jet engines mounted on pylons away from the wing or body, while propeller engines are integrated directly into the It has been done in the past (see the de Havilland Comet), so what was wrong with that solution? Archived post. High-performance modern jet engines operate with extremely high temperatures and pressures. To understand this, consider that the engines are producing thrust, and the wings and fuselages are producing drag, so the engine pylon is pulled backwards at the wing mount-point and forwards at the engine mount point. Helicopters have an engine, two spinny fans in some configuration, a transmission and a bunch of driveshafts run through a sprag clutch, so when the engine quits turning the spinny fan things don't. A. Most jet aircraft today are something called a turbofan. Jan 1, 2013 · So a simple hedge-hopping, fixed-gear piston-powered airplane gets dumped into the same bucket as a twin-engine, pressurized light jet meant to fly at 45,000 feet. Fuel consumption per distance traveled is proportional to this. The most common engine block in a lot of boats is some form of the Chevy Big Apr 24, 2015 · Thus, the aircraft manufacturers and operators end up accepting the risk of a catastrophic birdstrike, because the alternative of protecting the engine as suggested is too expensive when the effects on the efficiency of the 5 days ago · Bugatti is a French luxury car manufacturer producing some of the world’s most exclusive and expensive cars for over a century. Maybe I just don’t get it, but it seems like the engines in the small piston planes I fly are a nightmare compared to car engines. asked Mar 23, 2018 at 7:07. If the pylon were vertical then these two forces would be shearing Dec 17, 2017 · Waiting a few seconds for the engine to respond could be the difference between life and death. More importantly, a lot of high Oct 27, 2021 · Many manufacturers are testing and working on more technology-based engines. 5 to $24 million. Suppose I'd want to build a miniature jet engine myself for a model aircraft project, can you recommend any software to simulate my ideas before actually building and wasting money on them? Formula 1 cars Oct 9, 2019 · Metallurgy is the main challenge. The expanding air spins a turbine that rotates the propeller. They work basically the same as full size jet engines. Jet engines contain thousands of moving parts. Marine Corps, Royal Australian Air Force, and Japan Air Self-Defense Force aircraft fly in close formation during Jan 12, 2023 · Why don't airplane manufacturers put a grating or screen in front of jet engines to prevent bird ingestion? Source: reddit / no1name Going back to our initial question and after Jan 29, 2006 · Like many pilots and aircraft owners, I've wondered why our engines are so damn expensive. Most major jet engine OEMs provide maintenance plans to create better value for their customers. So in military aircrafts especially small jets, where weight is a premium they can't afford engineer's don't consider sounds reduction. There are many reasons why boat motors are expensive. For jet engines to operate, air must be drawn in from the front, compressed, and mixed with fuel. Some of these parts are difficult to manufacture, while others take Aug 15, 2023 · There are several types of fuels used in an aircraft. Edit: By the way, all modern military helicopters function this way too, as far as I know. But Jun 23, 2024 · The development of more powerful jet engines made the B-36 an unnecessarily large target that was slow, expensive to operate, and challenging to maintain. With better bombers on the horizon like the B-52 BUFF, the B-36 Oct 4, 2018 · Jet-surfs are boards with a motor that allow surfing not only on waves, but also when calm on lakes, rivers, bays. In particular, the F-104 Starfighter made a range of tonal howls, especially during landing approaches. Simple Flying dives deeper into five reasons why military jets are extraordinarily expensive. All 3 of these manufacturers use a jet ski engine. A high-pressure stream of exhaust gases is subsequently produced by igniting the fuel Apr 27, 2023 · Why airfares are so expensive and likely to it takes 100 working hours to ready the biggest jets for service yet they still can suffer from issues such as damaged interiors and engines. Sep 14, 2023 · Why Jet Engines Are So Expensive. Sep 1, 2022 · Recalling what little physics I know, this could be explained by two factors: The blue color is given by the characteristic EM radiation of C-H bond breaking, C- and H- Apr 26, 2022 · So with a high-wing configuration and all of the mass in the engines anyway, I'd say the engines are right about even with where they normally would be. Apr 12, 2021 · Jet engines are so expensive, because they are getting more and more sophisticated and fuel efficient. Turbines basically just go around and around, while pistons, valves, and so on Why are F1 engines so expensive? #f1 #formula1 #driver61. In addition, they must be able to withstand the Jan 13, 2021 · Hi! Could someone explain me why light aircraft piston engines seem to be kind of stuck in the 80's ? I'm asking because the more I learn about how light aircraft are made, the less I understand why their designs don't take advantage of the huge improvements the car industry has produced for so many years. Boats, regardless of Sep 29, 2021 · In general, jet engines on passenger aircraft make so much noise that in a long-duration flight it becomes really tiresome and uncomfortable. Thus these designs can take advantage of the benefits of wing mounted engines. Jet engines are designed to be ultra-reliable under conditions of high stress, Oct 3, 2023 · With the factors above making boat engines so expensive, You can also say goodbye to motor maintenance. “There will undoubtedly come a time Aug 20, 2021 · So when building a rocket, a market in which volume is very low and development costs are very high, it's actually more expensive to use fewer engines, because so few of them will ever be built. The prices for military aircraft engines are typically not disclosed, but in June 2022, Raytheon’s Pratt 1 day ago · FAQs Q: Are rocket engines more powerful than jet engines? Of course! Rocket engines are more sophisticated and powerful than jet engines if you’re comparing jet engine vs. From an engineering safety perspective, this of course introduces a whole new host of points of failure, but I posit that it can't Jan 27, 2024 · The Luxury Impact. Mar 4, 2015 · $\begingroup$ Perhaps nice to mention why piston engines are so picky: gasoline should only ignite when you hold a spark to it; diesel should ignite immediately when it's sprayed into a hot cylinder. BY Mr Spaceman - Thu Dec 20, 2001 7:42 am - Thu Dec 20, 2001 7:42 am #10545135. One of the most expensive factors Jun 27, 2023 · They came much later than piston engines, despite being a lot more intuitive as they are a direct manifestation of Newton's third law, and they seemingly have a lot less moving parts. Their outer hull is covered in a top secret material that makes them near invisible to radar, their internal computers are extremely advanced and run a huge number of systems and subsystems to help fly and perform the plane's mission. Actually, "jet" engines like you see on a passenger jetliner or military jets are called "gas turbine" engines. Jet Fuel or Jet-A, Jet-A1, and JP-8 is what is used in a jet engine. Aug 1, 2021 · Even if the GT adds more options as standard, it still seems like a big difference. The Pratt & Whitney F135 engine for the F-35 costs around $15 million 2 days ago · The average passenger airliner costs between $82 and $230 million. Jul 21, 2022 · The downside is that diesel engines are often more expensive to fix and service when needed. Why is this done? Apr 19, 2012 · While building my engine at the Superior build school I was chastised for nearly dropping their $800 ring compressor, which was simply a big C-shaped chunk of aluminum with a tapered inner bore. The internet is littered with users asking why this is. It makes more sense to develop a smaller engine--something which (we haven't mentioned this yet) is MUCH easier to design & validate than a very large engine--and just Apr 29, 2020 · Jet engines are far more efficient. Nevertheless, getting all the fuel to burn is a considerable challenge, primarily because the air/mixture flows faster in the engine than the flame front. The price varies based on the engine’s size, design Sep 13, 2024 · Developing new commercial engines can cost up to $10 billion, far more costly compared to the past. The metric to compare them is 'Thrust-specific fuel consumption', i. In a jet engine, fuel is sprayed into apocalyptic burning conditions anyway, so one can have a less 'picky' fuel. Yes, a large Turbofan on an airliner, which accounts for the majority of hours that turbine engines are used for, will be more reliable per hour than a 100hp Lycoming in your uncles 152 that he runs 3 times a year to blow the rats nests Dec 26, 2023 · Why Fighter Jets Are So Expensive? December 26, 2023 Article 10,365 Views. More recently, some small jets have a single engine, and at least one design ( PiperJet ) was developed with an engine in the vertical stabilizer. . But the fact is, technical innovations like vertical takeoff, super cruise and combined cycle Feb 3, 2024 · Commercial jet engine producers typically keep their pricing confidential, but the cost for these modern aviation powerhouses can reach millions of dollars. Heck, you can buy a Suzuki GSX-R1000 motorcycle for around $11,000 and get Aug 28, 2013 · I often think about why we don't have more engines that use a transmission, at least to gear up 10% or so. Nov 12, 2019 · Let me try to answer, why are jet engines so complicated? To understand that, we have to examine the economics of jet engines, and it comes down to fuel efficiency. Afterburners are great at giving you a huge amount of thrust very quickly. The reliability of jet engines has made air Dec 12, 2023 · Why are jet engines expensive? Complex designs and comprehensive testing are two key factors defining a jet engine’s cost. At first glance, a commercial jet engine may look like an engineering outlier. e. Why was it not possible to create a simple jet engine like the GE J47 in the 1930s, when they were already building V12 supercharged 1000 horsepower Merlin engines? Oh, thanks, that's reminded me of another factor. Components like turbochargers, glow plugs, and others may require specially trained technicians, which Jun 18, 2000 · My, admittedly simple, understanding: Jet engines are most efficient operating at max permitted RPM, subject to operating limits. They're a lot faster than small aircraft, but not nearly as fast as a fighter jet. A number of older fighter jets were known for the characteristic sounds of their engines. Unfortunately due to weight, they're so much more expensive pound for pound that it actually negates all of the increased efficiency they provide from a cost-effectiveness standpoint Modern fighter jets (F-22, and F-35 as examples) are literally covered in expensive high tech stuff. You can always fly faster to increase lift, which is why even a brick with control surfaces (A. It's compressed really, really small and then at that point, it gets really hot. Not to mention the ecoboost has a turbo which adds complication. Firefighters tried for hours to Jun 13, 2022 · Virtually all of that lost value of production was in the aviation industry, which saw production valued at $51. the amount of fuel used to produce one unit of thrust. The cost of gas has skyrocketed 43. How are they transported? Boeing 747 freighters can swallow most engines, so in the age of widebody transporters there is no more need for special aircraft for Feb 26, 2018 · Aviation engines generally require gasoline with very high octane ratings (typically at least 100), which is still more expensive than the lower octane gasoline used in most automobiles and such. Air Force, U. Hi guys. Edit to add actual information instead of just sounding contrary to be contrary: Edited again for inexplicable brain fart. Jun 16, 2022 · It would be more fair to compare them to brands like BMW, which are also more expensive than average. Airbus built the A320 family, which rivals the Boeing 737, with bigger engines in mind. Aug 13, 2019 · But I do not completely understand why GA planes are so expensive, because: most GA planes are not luxurious; they have considerably less features than modern cars; there shouldn't be a lot of development cost to cover because a lot of GA plane designs are quite old and "simple" Possible reasons I can see are: Jan 1, 2021 · In 1916, the Navy bought a Curtiss N-9 for $6k. In the photos below of the TU-154, you can clearly see that the 2 side-mounted engines are angled so that their tailpipes are pointed inward toward the fuselage. This complexity and precision in design and manufacturing contribute significantly to their high cost. Jet engines operate based on Newton's Third Law of Motion: for every action, there is an equal and opposite reaction. K. Most aircraft use turbo fans, which is just a jet with a fan wheel attached at the very front. However, earlier 737 models were too Jan 16, 2021 · So I suspect that costs such as engine overhaul and aircraft inspection do not scale with aircraft size and are approximately the same for both business jet and large commercial aircraft. There's usually a housing for the entire assembly, ELI5: What is “Russ”, and why is it such a big deal/so expensive in Norway?. Sep 13, 2024 · Military engines are some of the most expensive jet engines on the market. It’s just Why are jet engines so difficult to manufacture? In engineering, some things are always difficult and expensive. There Discover the intriguing reason behind the high price of Mopar engines despite their widespread use. I guess if people will still buy them at those prices they will continue to Mar 17, 2024 · Turboprops generally work similarly to jet engines: The jet compresses air, then fuel is fed to this compressed air inside a combustor. Formula One F1 – Hungarian Grand Prix – Hungaroring, Budapest, Hungary – August 1, 2021 Mercedes’ Valtteri Bottas collides with Red Bull’s Sergio Perez Pool via REUTERS/Peter Kohalmi “This Jun 9, 2015 · Very early jet engines weren't particularly powerful; it took two in most cases to equal (or slightly exceed) the performance of a single big V-12 or large radial. I have a hydrogen Hyundai and got the gas credit for 3 years but is not projecting to be only enough Nov 19, 2021 · Hondas are expensive because of a worsening inventory shortage at dealers across the country. As theses jets get larger (mini-737) there is such room. Oct 3, 2024 · Why are jet engines so reliable? The fascinating journey begins with their design. Oct 24, 2016 · That's why it took so long to get rid of the smoke - the extra efficiency loss from unburnt fuel on take-off/landing is relatively small on a typical route, while the technology to Oct 20, 2024 · Boat motors, often referred to as outboard or inboard engines, are crucial components of any vessel, providing the necessary power for movement and navigation. Improve this question. Nearly everything else we see on planes has gotten smaller and more streamlined over the years. Compare a 1940s auto engine to one from the '60s, and to a modern one. 1 Feb 20, 2024 · Engines are actually more efficient the larger they are. I joked that I was in the wrong business and was gonna go into the aircraft engine ring compressor business. Answer: it was an unbelievable, unfathomable, "holy crap these things suck but good golly they go fast" amount of suck. Turboprops are jet engines, except instead of shooting gas out the back really fast, they give torque to a drive shaft. What has accounted for the skyrocketing cost of airpower? Thrust is made by accelerating air. Most passenger aircraft fly at a medium speed. Motors require a lot of engineering and design in order to make them both powerful and reliable. As mentioned above there are different engine programs depending on the manufacturer of Jan 15, 2025 · $\begingroup$ I think you're overlooking the great improvement in the reliability of all engines since the era of piston-engined airliners. Its why modern jets have absolutely monster sized engines. Modern engines are marvels of engineering, designed to be reliable and efficient while meeting strict safety standards. May 31, 2017 · TL:DR: Jet-A is cheaper than 100LL, but the support systems and availability are not yet in place to make engines that burn Jet-A an economical choice for private owners looking to retrofit their existing airplanes in the US. Color Choice . Most Expensive Engine Cost. These marvels of engineering have fewer moving parts compared to other engines, which reduces wear and tear. The prices of general aviation airplanes are unsustainable. nysnu gbxbj yunhf emmfv muwalg mgq gyz fmhkt pxer fnwmc