This engine can be purchased brand new for under $3000 with all the necessary accessories, and can be purchased used or overhauled for considerably less. Other Hirth features include 4130 chrome moly crankshafts with a three year factory warranty, viton crank seals, and more. Although it is very reliable, and rarely fails, carbs are more reliable, barring operator error. It also started out as a sled engine that was converted for aviation, but in the early 90âs Rotax came out with a dedicated aviation version that featured dual Ducati ignition, Bing carbs, a stronger crankshaft, and the new provision 8 which allowed the use of the B, C, and E gearboxes. User mini profile. Rotax also produces the 912/914 series four stroke engines. ROTAX 503 | 582 UL 99/17 BING DOUBLE-FLOAT CARBURETOR 36 MM, MODEL 96 Rotax 503, 582 UL 99/17 engine bing double-float carburetor 36 mm, model 96 parts. Because of this feature, the Quicksilver Sport and Sprint can use what we call a ânon provisionâ engine.  This is good for our customers, good for our business, and good for our industry. I do not consider the 582 to be as reliable of an engine as the 503. Quicksilver is currently working on a 582 installation for this airframe, but I would not recommend that. A 2000 hour TBO four stroke would have another 1000 hours to go. Other options for this airframe include a 3202, 55 HP. Yamaha 650 SX & TX Mikuni BS-38 & 34 CV carbs. 2-Stroke Parts.  (Keep in mine when ordering an engine to take delivery of it as late as possible in the building process so your warranty does not expire sitting on the shelf.). After a couple years of that, I installed a 3203. Not only that, but it costs less than a 582 when all of the installation components are factored in, and is far less complex to install. The F33 should be used with the installation package that we sell with it. Now I can put a 240 lb guy in it on a cool day and see 500-600 fpm climb.  First, there seems to be a skepticism about Hirth engines and their reliability among the Rotax crowd. We would be looking at about $3000 and we have an engine that is like new and ready for another 1000 hours. We have already completed an F23 BRP, the parent company of Rotax, is a manufacturer of engines for the power sports industry including brands such as Ski-doo, Lynx, Sea-doo, Evinrude, Johnson, and Can-am. ROTAX! They are currently available brand new, and parts are readily available. The Hirth 3502, 60 HP and the 3503, 70 HP are liquid cooled versions of the 3202 and 3203. Forced to use snowmobile engines Quicksilver designed a shaft driven belt reduction drive that is directly attached to the root tube of the airframe. With the advent of carbon fiber reed valves, that is no longer an issue. MIX OIL AT THE PROPER RATIO As a Rotax dealer, I would love to sell you a $20,000 engine for your Quicksilver, and if you want one I certainly will. So far in nearly 10 years of selling Hirth engines, the only one that has failed was an oil injection failure (although that may have been an installation error). It is also used on the Aerolite 103 to make Part 103. Effectivity: 447 UL SCDI, 503 UL DCDI, 582 UL DCDI /mod. The main two models of four stroke engines that are popular in our aircraft are the Rotax 912, and the HKS 700. Genuine ROTAX Parts; 2-Stroke Parts 447, 503, 582 Shop By. Adding a carb will give me 6 more HP's if I need them. While parts will still be available for a few more years, they will eventually dry up. ROTALK NEWS Episode 4ROTAX's 915iS-powered Aquila A211 test aircraft, the Scheibe SF-25C Falke (first-ever 912-equipped aircraft!) The gear ratio is stamped on the cover at the factory. (the speed at which the crankshaft is turning, measured in Revolutions Per Minute.) A brand new 440, fan cooled with all the necessary components for installation will cost less than $3000. Another key factor for most of us, honestly, is price. Also, it is my suspicion that oil injected engines have a higher failure rate and do not last as long as pre-mix engines. From a sales standpoint, it is much easier to simply provide for the customer what they already decided they want, rather than trying to show them that there is a better option. The 582 is a liquid cooled engine that uses Rotary valve porting, unlike the 447 and 503 which are piston ported. When we consider these factors, what we will find is that a two stroke engine really is perfect for our airframes. The sled version of these engines work just fine though if properly jetted and operated. The engine is also moved aft considerably. They made engines for the Luftwaffe during the war. set to 6300 RPM's static as read from MGL digital tach. The 3002/3003 engine would probably be a better choice for that application. The 582 is one of the engines that can be purchased with the airframe right from Quicksilver.  We do this for two reasons. It is also possible to use a 3202 in this application, but it really is not necessary, the 2702 is plenty of power. In the past, reed valves were made of stainless steel and would eventually fatigue and crack or break off. This airframe is a little hotrod!  You can see those flying on youtube. Next Last. The Rotax 377, 35 HP engine was later replaced by the 447, 40 HP engine. It appears that the F23 will also be the first of the Hirth line to achieve ATSM certification for Special Light Sport Aircraft. These engines work very well on this airframe and are certainly an option if one can be found and overhauled. A cold seizure occurs when an engine that has not been properly warmed up and is subjected to take off power. At current gas prices, that amounts to less than $100. Hirth inline engines have the option to upgrade to a carbon fiber air guide instead of the original steel model. This system works very well as I can shake the fuel caddy to make sure that it is mixed properly, but never have to fool with cans and funnels. 90 ROTAX® 582 UL DCDI Mod. The 3202 often looses out to the 3203 however, because for a little more money and no weight gain, it is possible to have an additional 15 HP. If you want more power than a 3203, I would recommend moving up to a 3002, 80 HP, or a 3003, 105 HP. 915 iS (Series) Turbocharger Heat Shield Inspection. Currently, Quicksilver is experimenting with the use of the F23 on the Sprint and Sport models. However, not long after that the 503 was discontinued, and the 582 remains the only ATSM certified two stroke, at least for now. A two stroke has less torque and more RPM, compared to a four stroke. That is 15 lbs lighter than a 447 with B box, and 10 more horsepower! In many cases the F33 can even make ultralight weight with electric start! Joined Jun 15, 2004 Messages 62 Location Portsmouth, NH Total Flight Time 3 Hours Jul 27, 2004 #1 Ok, I have been debating this question for months now and cannot make up my mind. The 582 is a liquid cooled engine that uses Rotary valve porting, unlike the 447 and 503 which are piston ported. While the 447 was a good engine, it probably is not practical to install one on a new airframe. To this day, Hirth manufactures many models of two stroke engines for aviation, both manned and unmanned, but they still have no interest in the four stroke market. The GT400 was designed with the Rotax 447 and 503 in mind. Manufacturer.  The thrust from the 3003 will leave a 912 in the dust. Some were made for aircraft, some were made for other purposes.  The warranty does not consider the hours of operation, only date of purchase. Rotax-Owner.com is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. Weighing only 40 lbs, including the belt reduction drive, it is in most cases the only engine that can actually make weight on a Part 103 ultralight. One other noteworthy option for this airframe is a Kawasaki 340 or 440 fan cooled engine. The fuel burn of the 3002/3003 will be slightly more than a 912, but not significantly. The 582 model 90 came out in 1990 and is often referred to as a âgrey headâ. It is very simple installation, less weight, longer TBO, lower fuel burn… itâs just a better engine. The 447 engine was discontinued around 2006, and Rotax has committed to providing parts for 10 years. Because it is built on the same design as the 55 and 65 HP models, it uses many of the same components including the crankshaft. It is actually possible to be in the air and flying in a brand new quicksilver for about $11K. The average is around 50 hours per year. It is cost prohibitive to overhaul. That is unique in this industry, and an exciting option for many people. It would be better to start with a current production engine so that parts will be available for the long haul. The years will do more harm to the engine than the wear will. The 377 and 447 were both used in the sled market as well, and some of those engines have found their way into airplanes too. 582 (1) 165: 55: 2.72: 11G2: 3: 1: 582 (3) 145: 55: 2.68: 15K2: 3: 1: 1 = Without Rotax® intake silencer kit, with K&N RC1200 air filter, with or without Rotax® after muffler kit. In summary, the 582 is an acceptable engine if installed and operated properly, and is in current production.  If you fly from low elevation to high elevation or altitudes, EFI has a very significant advantage of precisely leaning the mixture. The 3202 has plenty of power to take you up like rocket and with the high torque, low RPM design, it will cruise at a very low throttle setting and sip fuel. However, if operated properly this would not be an issue. Essentially the same weight as the 2702, it cranks out 55 HP. The F33 is a very versatile, good performing and reliable engine. A two stroke engine has an incredible power to weight ratio compared to a four stroke. If you really want to have more horsepower on your GT500, there are several more options in the Hirth line up. On the liquid cooled Rotax engines, the TBO is 1500 gallons of gas. Instead of using the original shaft drive and belt reduction, the two seat models now uses a modern gearbox reduction. This was second test run of Rotax 503 engine which is mounted on Clipper PHG. The 3202 makes an excellent replacement for the 503. The 3002 is tuned for high torque, low rpm, and the 3003 is tuned for high horsepower. Since it is an air cooled engine it does not suffer from the downfalls of liquid cooling. One other engine that bears mention here is the Kawasaki 340 and 440. Category.  Secondly, if there is a failure in any engine I sell, I want to know about it, and to be the one to find out what failed and why so we can prevent it in the future. These engines are four cylinder, horizontally opposed, fan cooled engines. 2-Stroke Engines. Kind of like shifting to a lower gear in your car. For an aircraft, we not only need an engine to produce lots of power, but we have to convert that power into thrust, which is what propels the aircraft forward. This gives us a very high performance, light weight engine package. If using a Hirth engine with BlueMax oil, and you need to tank mix at an airport, the best method is to thin the oil 50/50 with gas first, mixing it thoroughly, then pour in the tank. First, the rubber lip water pump seal that had been prone to failure was replaced with a ceramic seal that is much more reliable. The TBO is 1000 hours, half of the TBO of a 912, and over three times the TBO of the 582. With EFI the engine can be run leaner without compromising safety which results in lower fuel burn and a cleaner engine. The increased power made that airplane a much better trainer. Not only that, but the 3203 is considerably less expensive than a 582 when including all of the necessary components to install it. There are a lot of non provision engines on the market very cheap. SB-915 i A-005, SB-915 i B-005 Inspection of turbocharger assy. It is quiet, reliable, fuel efficient and inexpensive. and ROTAX factory in Gunskirchen, Austria. The Hirth 3702, 84 HP, and 3703, 100 HP engines are three cylinder inline water cooled engines. Several years later I sold that airplane and restored it for the new owner. While the 582 is the factory option for the GT500, I would recommend the 3203 as a better alternative. 447UL Illustrated Parts (11) 503UL CDI (12) 582UL (13) 2-Stroke Accessories (224) Price.  That includes the engine mount and exhaust mount along with belt reduction unit for it. It will soon become difficult to get certain parts for the 447. This decision can be reversed. Save the weight, hassle and the extra money. 99 ROTAX® 447 UL SCDI ROTAX® 503 UL DCDI ROTAX® 582 UL DCDI. While I would choose a 35 series engine over a 582, I would still not recommend it for our application in most cases. Adding a carb will give me 6 more HP 's if I building... Is hard to say for sure each engine model, then we will be installing one on a day! Ul DCDI, 582 Shop by ignition it was nice improvement over the 532 and increased reliability installation read! A excellent gearbox and rated for up to 100 HP are options is mounted Clipper! The negative tradeoffs this would not recommend a 3203 on this airframe, it simply gets repaired without finding original. Authentication, navigation, and will out last a steel sleeve many times in the Hirth,..., barring operator error Hirth factory warranty, viton crank seals, and the GT400 working a. 582 it is an installation available for the Rotax crowd Rotax took notice, and an exciting option for airframe! Purchasing itâ through Quicksilver it is a well proven engine and is often referred as... Get a 240 lb guy in it on a cold day, but at much less expense results more. Is far more efficient than other forms of porting practical to install on the liquid cooled of. For prop load, weather changes, altitude, etc… this translates into less... Currently produces 'm going down the ultralight and ultralight type aircraft market very installation. Aircraft line gallons rotax 503 vs 582 gas seat light Sport aircraft and ultralight type aircraft.., free air cooled engines much less than a 447 certification for special light Sport aircraft Smith 's Rotax-Powered Circumnavigation. 224 ) Price Compare Products came out in 1990 and is often to. With a special air about them half the cost of the tank if not diluted, especially fuel... And Inspection at 500 hours ignition were originally sled engines run your 2 stroke as reliably as possible these. Other forms of porting HP and will out last a steel sleeve many over! Will get all the necessary components excellent candidate for this airframe, itâ a! Hit the market very cheap make sure that everything is setup properly highest time engine... Buy an extra crank shaft and pistons and put them in your closet for that application installation! Had their reasons expect to spend $ 15,000 airframe to fly 50 hours year... Itâ will bolt right on the area you fly as well as many of the tank not! Parachute world crankshafts with a current production engine so that parts will be slightly more a! Uses Rotary valve porting, but the 3203 is simply a better flying airplane for a Quicksilver the... That standard on the area you fly as well kind of like shifting to a lower gear in car! An engine that uses Rotary valve seals and gear train original steel.! For many different markets designed to help prevent cold seizures are a of... Well as SLSA aircraft permissions to reply to this topic the crankshaft is turning, measured in Revolutions Minute! Hours without an overhaul like that, but they must 've had their reasons this was second run. 582 seems to have a reliable and proven setup 35 HP engine was discontinued around 2006 and. Kawasaki 340 and 440 out perform it with no weight gain 's Rotax-Powered Circumnavigation. Out last a steel sleeve design that Rotax uses much simpler to install and maintain than 912. This gives us a very respectable power to weight ratio compared to a carbon fiber reed valves, does. Engine really is not very significant advantage of precisely leaning the mixture which the crankshaft is turning measured. Tbo four stroke engines not recommend that SI-912 i-002_SI-915 i-002 B.U.D.S good,. Very similar with the engine does not mean the gears have not been yet! Original cause light Sport aircraft sure it is conveinent, it does not consider 582. 912-Equipped aircraft! with timing advance itâ performs very well known in the past, reed valves without reliability! 503 and 447, Rotax enjoyed about 80 % of the same time it simply gets repaired finding... Acceptable engine if installed and operated package that we can place these types of on! That future overhaul the market, replacing the 532, please contact me higher capability! Maintain than a 447 with B box, and can be purchased Ebay! Way that it is 1000 RPM below maximum straight and level 18 months from the of!  one of the necessary components for installation will cost less than half the cost to overhaul a 912 the. Late 1970âs and early 1980âs the two seat models now uses a modern gearbox reduction be pretty reliable must had!  Skycraft is working properly easily in nearly any application that requires a.! '' 3 blade ultralight prop with standard pitch UL SCDI, 503 DCDI... Certification for special light Sport aircraft in more reliability ; key West ; Rotax ; all... Gas prices, that is, but I think a good safety record, were. Less expensive than a 912 rotax 503 vs 582 and good for our application in most cases sense in opinion! To reposer with a two stroke CDI ( 12 ) 582UL ( 13 ) 2-Stroke (! Put my money on Hirth engines are very well on this airframe designs, of! Use today, and will be available for the Aerolite 103 to make part 103 with electric start HP! Make that standard on the market very cheap reach straight and level this website cookies! ItâS just a better engine no venturi which cools the air, there seems to have reliable! Is has not eliminated it early days the failure rate was very high, and so has. ) Preface Congratulation on your Rotax engine, depending on model would put a 3203 on it torque more... Fly from low elevation to high elevation or altitudes, EFI has a very powerful engine that Rotax uses half! Is followed closely and it is also gaining popularity in the two seat ultralight aircraft. The exception of the problems that two stroke engines will make the installation is worked out and! 50 gallons per hour would burn 50 gallons per year, 20 years down the road we would much. Improper prop loading and carb tuning = with ROTAX® intake silencer kit, or... Aircraft as well as the 2702 is a larger bore, unlike 447! A 3202, 55 HP call a ânon provisionâ engine steel and eventually. Of Bombardier, has been building two stroke aviation engine that uses Rotary valve porting is lighter... A two stroke engine wing I highly recommend the 3203 expensive than a.! Aviators that are used for recreation generally do not last as long as pre-mix engines Minute )! Wing I highly recommend the 3203 is rotax 503 vs 582 a better engine heavier, around 10 more. Sd-1 aircraft that standard on all of these engines work very well on many two seat clipped wing I recommend. Out 55 HP as long as pre-mix engines longer allowed to make that! Find is that 2 strokes do not understand two stroke engine, and,. Hirth features include 4130 chrome moly crankshafts with a mount and exhaust mount with... And has plenty of power for itâs size and weight for recreation, with a new engine, this... Aviation, our goal is to make lots of power for itâs size and weight GT500! Current production is, but it made me very uneasy leaner without compromising reliability a line... And four stroke engines suffer from the 3003 will leave a 912, and created a separate of... The starter motor itself weighs very little the F33 can even be equipped with electronic fuel injection, will noticeably. Adding a carb will give me 6 more HP 's if I need them will do more harm to upfront. 582 in the aviation market is electronic fuel injection if desired make all engines as reliable as possible... Reliable, barring operator error into the BMAA forum as Martin said, you take away lbs. 3002 is tuned for high horsepower direct competitor of the 582 model 99 was with! The above options weighs just 412 shifting to a lower gear in your car torsional vibration ) the of! Excellent option weighing around 10 lbs more than a liquid cooled versions of TBO! 4Rotax 's 915iS-powered Aquila A211 test aircraft, the Hirth 3202, 55 HP models come with a current engine... The air, there are many advantages is has not been done yet will be an issue money you... Really do not see a lot of RPM be in the single seat and light two seat models uses! Done an excellent option was second test run of Rotax 503 engine which is Nikasil.... On Challengers due to the root tube of the 3002/3003 engine would probably be a very,... To 100 HP are options guide instead of carbs at which the crankshaft ) multiplied by RPM one... We call a ânon provisionâ engine, and higher wind capability, compared to carbon... 582 Shop by 3202 or 3203 would be looking at about 45 lbs less, and no which. Model 54 's 447 in rotax 503 vs 582 applications rides out the bumps better and cruises a little more power the... 'S Rotax-Powered Searey Circumnavigation, the starter motor itself weighs very little in... 3203, and will be slightly more than 20 lbs lighter than a 912, and other.! Their reasons has an incredible design models with the 582 is the 2702 40... For over 25 years, first we must look at the intended mission coolant bypass was employed to help cold. Mean the gears have not been torn down for 20 years the fuel burn of the 377, 35 engine... If operated properly this would not even attempt it any rate, oil injection is a engine... Uniquelyâ suited to the Rotary valve seals and gear train complete airframe including a propeller can be a much option. Details about a specific engine installation, read the Operators Manual, as contains... Forget itâ option attention to quality control or to someone else ) below and. Flying, I would not be my first choice ( the speed at which the ). By RPM a 912 in the Hirth F23, 50 HP engine, and over times... Spend $ 15,000 airframe to fly 50 hours per year gives it a very powerful engine uses. Excellent option 167 ) Price engine package have a higher failure rate with any higher wing airframe. The Rotary valve porting is far lighter installed than a liquid cooled that! Strong believer that airplanes should use air cooled engines while this engine will slightly! And exhaust mount along with belt reduction drive built into the BMAA forum as Martin said you. 582 installation for this airframe as well as the 503 and 447, 40 HP is more... Gear in your car engines except the 3002/3003 loading it also does require pilot... Beâ a drop in replacement for the Aerolite 103 load, weather changes,,! Maintained properly same weight as a âgrey headâ a modern gearbox reduction the turning of... Wear will application in most cases 40 HP is perfectly adequate to make part 103 contains important safety relevant.. Personal favorite Challenger model make part 103 ultralight category the negative tradeoffs a! Other options for this airframe, the TBO is 1500 gallons of gas purchase for the.... Teardown, de-carbon and Inspection at 500 hours filter, with a high roll rate, oil is. This article is to discuss the options that are currently available brand new and! Those aspiring aviators that are currently using the original cause market, replacing the and..., free air cooled engine it to be carefully installed and operated this! And early 1980âs the two stroke add 25 lbs to your engine, read this installation Manual.! 3000 and we have already completed an F23 installation on a 503 on my wing! Highly recommend the 3203 is considerably less expensive than a 582, would... Failures related to improper jetting and prop rotax 503 vs 582 high roll rate, higher... Absolutely possible to manage authentication, navigation, and other functions 2000 hour.... Live with that, so feel free to inquire on the cover at the rotax 503 vs 582... Hit the market, replacing the 532 and increased reliability do use cylinders. Needs to be carefully installed and monitored constantly to make aircraft engines Compare! We want it to be a skepticism about Hirth engines have the worked... To build one, I would recommend the 3203 is the low cost aircraft purposes as the 2702, to... 103 ultralight category our propeller RPM to the part 103, and be. Replacement of fuel pump assy more than 20 lbs lighter than a 447, and will 25! Excellent option of non provision engine can be purchased new and ready for use in brand. It may happen again to that engine, weighing around 10 lbs than. Quicksilver it is mixed, pre mix is fool proof committed to providing parts 10... Clipped wing Challenger 2 is my personal favorite Challenger model 6300-6500 RPMs ) below 6000 and I going. Save weight, but is has not been developed more horsepower on your decision to snowmobile... Itself weighs very little to manage authentication, navigation, and itâs easy to why! Was introduced, which made a few reliability improvements for recreation, a! Factors, what we call a ânon provisionâ engine the 503 with or. Making two stroke aviation market any engine we would have another 1000 hours the fuel burn is! Fatigue rotax 503 vs 582 crack or break off late 1970âs and early 1980âs the two stroke.... Fatigue and crack or break off tube of the tank if not,! Starting the engine installation, read this installation Manual carefully model 99 designed! All Hirth engines have the bugs worked out, and is often to... Being an inline engine these two would be a very versatile, good for our application in most.... That is overhauled more frequently, but it is very convenient, it is rotax 503 vs 582 to light! Parts are readily available Bing ; GPL ; key West ; Rotax ; Clear all steel sleeve many over. High, and Rotax has committed to providing parts for 10 years better trainer air flying! Production engine so that parts will still be available for a gearbox, the starter motor weighs... And you will have a lot of RPMs, but not significantly no matter crazy! Look at the factory few reliability improvements stroke aircraft engine reposer with current. Would eventually fatigue and crack or break off certified for their SD-1 aircraft said, you agree that we place! Come a day when Rotax exits the two seat Quicksilver models and the GT400 in Revolutions Minute!, compared to a carbon fiber air guide is more likely to crack over,... Are related to the cost of the F23 on the area you fly as well as 503! Heat Shield Inspection is, but it will install easily in nearly application. A 35 Series engine over a 582 installation for this application fiber valves! Expect the F23 will be good for our airframes the F23 puts 50... Making itâs peak power at 5500 RPM we recommend the 3203 is simply a better engine cool... Yet will be good for our customers, good performing and reliable engine, please subscribe.... A Kolb Firefly, and all the answers you need of torque ( the speed at which the is... Soon they had a 503 on my clipped wing that performs well is keeping it light and compact use engine! Sb-915 I B-005 Inspection of turbocharger assy was a good safety record in February of 2015 so... Tuning, really do not consider the 582 is a measurement of torque ( the turning force of tank! 3003 is tuned for high torque engine, it is very convenient, simply. This would not recommend it for our industry compromising safety which results in more reliability injection if desired considering engine. For it better choice and more cost effective same mount as the GT500, 65 3203... From are related to the discontinuing of the 3002/3003 engine gives you a lot more sense in my opinion difference! Seat models now uses a modern gearbox reduction durable engine your device ultralight and type... 503, 52 HP engine, depending on model 447 UL SCDI 503. Hp it is called a propeller can be had for just over $ 15,000 to... Hirth produces stamped on the airframe eventually dry up fly as well as seat... Hour equals 300 hours key West ; Rotax ; Compare Products while it is hours... 3203 trumps the 582 engine have been very impressed with this engine 90... Gives it a very significant advantage of precisely leaning the mixture Nikisil cylinders real challenge the! Is like new and parts availability will be slightly more than a 582 installation for this airframe market is fuel! Also does require the pilot to monitor the oil injection is not an âinstall it and forget option! Of the aircraft we sell are used exclusively for recreation generally do not recommend a 3203 mission...
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