Although static thrust does not tell the whole story, the resulting data does tell part of the storyplus this is great fun. By the time static thrust testing took place at 11am Saturday morning, warm temperatures had pushed the density altitude to 6,400 feet. That's a lot of extra weight out in front of the noise, which affects both the total engine installation weight and the CG of the aircraft. I test them as I fly them. I found this on the internet, so I don't know how accurate it is, but all weights are in lbs. Continental O-300 277 Lycoming O-320-A 243 Lycoming O-320-D 253 Franklin 335 320. The wieght figures are off the internet, so who knows how accurate they really are, but someone put a lot of work into finding these figures, so they are probably correct or close to it. The 912 turbo weight, I guess, is without accessories, thus it show lighter that the standard 912. I have my stock configuration of 80HP Rotax 912 UL with an Arplast 3 blade prop- not sure what the prop diameter is. The direct drive electric start VW installed weight is about 180 LBS from my experience, but you can shift some of the weight closer to the firewall by choosing alternate accessories (like dual magnetos driven off the back of the motor), which reduce the impact on the airframes CG (you can also use a light weight wood prop). Just looking around on the googlesphere and WOW Those dynamo meters are some spendy beasts. View Profile View Forum Posts Private Message Senior Member Join Date May 2009 Location Goodyear, AZ Posts 1,742. Horsepower: 35 Weight: about 64 lbs Price: $2,090 complete Also available: Kawasaki 340, air cooled, 35 hp, New, $2,595 complete Used, $1,795 complete A lightweight (only 58 lbs) version of either engine is also available. The larger and more popular (now days anyway) Subaru engine is the 2.2 Liter, which weights a whopping 315 lbs !!!!! The fuel burn of the 3002/3003 will be slightly more than a 912, but not significantly. Rotax 503 trade show display Type Piston aero-engine: National origin: Austria Manufacturer Rotax: Major applications: Quad City Challenger Blue Yonder EZ Flyer: Produced until 2011 A Rotax 503 mounted on a Flightstar II ultralight. Im posted this to try to generate some interest for a Static Thrust Competition at B-Days.Typically you compete with others with the same enginethe props, carbs, re-drives and engine compression are the key variables. To further improve our offer and our website, we collect anonymous data for statistics and analysis. I see the A-65 is 173 lbs, whereas the electric start C-85 is 207 lbs, which sounds about right. think it's also important to note that the C-85's are often fitted with a metal prop. Can't wait to see the results. Rotax 277, 58 PowerFin, 2-blade = 200.2 lbs Rotax 447, 68 Ivo, 2-blade = 300.6 lbs Rotax 503, 70 PowerFin, 3-blade = 400.7 lbs Continental A75, Warp Drive, 3-blade = 350.3 lbs. Hey good idea, the organizers just polled the forum for activities and comps. Also note the dynamometer has a memory needle so you never need to get beside or behind the prop. (but really produces the power - that weight is also from the Stratus web site). Quietestyes. I always do mine on concrete or wood planks. Here is an engine weight comparison: Rotax, Continental + others. Example - granted not a Stratus, but some of the NSI Subaru The thrust from the 3003 will leave a 912 in the dust. It was tearing up my airframe. I heard some really wonderful things about the Jabira, and I bet they would make a good light and fuel efficient engine choice for the model 3 and 4s, but have not heard of anyone using one with the fox or avid. @MontyStone showed one once he rigged up with a simple weight scale meter with a memory needle on it. Let us know what happens CBurg. I do mine by myself outside the aircraft with my hands on the throttle and near the switches. The pilot can be in or out of the aircraft, whichever is easier to manipulate the throttle and switches. Is there such thing as an affordable one? Rotax Powertrains . We will use a Y bridle with each rope end making two wraps at or near each axle and use a bowline knot. This avoids any potential damage or rope slippage. or just test in the configuration you fly? 2-Stroke; 4-Stroke; 1; 3; 2; 4; Kart; Marine; Offroad; Snow; Aircraft; Onroad; Other; None; Sequential / Semi-automatic; CVT (Continously Variable Transmission) Fix; ACE (Advanced Combustion Efficiency) Turbocharged; E-TEC; Range Extender; Engine family 2-Stroke 4-Stroke. Looking forward to the results of this comp April 3-6. Productfinder Clear all filters. Hope some electric trikes / planes show up to the comp!! Number of cylinders 1 3 2 4. But the trade off is that you get exceptionally better performance. The results (in pounds of thrust, top of page) include an estimate ("ISA") of equivalent thrust at sea level under standard conditions (15oC, barometer 29.92). Rotax aircraft engines stand for outstanding performance, reliability, low fuel consumption and reduced emissions. The prototype Blue Yonder Twin Engine EZ Flyer is powered by two 503s in pusher configuration. Re: Here is an engine weight comparison: Rotax, Continental + others Major Skeptic here. on blacktop it ' only'took 25# to move it. check out the. The one weak point on the Polini is the gearbox. There will be a cross-category Static Thrust Competition at: April 3-6, Bensen Days, 40th AnnualWauchula FlStatic thrust competition - Gyros, Trikes, PPCs, Airboats, PPCs, FW welcomehttp://www.bensendays.us.com http://www.bensendays.net. It's designed for the short light weight props on paragliders. It was great low tech ingenuity. In summary, I was very happy with the Rotaxs but did not expect a lot out of the A it works good. My gyro is at another airport and I will test it later. The Subaru weight quoted is the smaller size EA-81, which has had several different re-drives used over the years, so the weight listed at 205 lbs is probably just typical (The stratus web site list 200 lbs for their engine). Please inquire. Six participants submitted their machines for testing. also the readings varied greatly with max rpms versus cruise.". I Other engines can use a light weight (and cheapish) wood prop, which gives a lighter total installed weight and affects the aircraft CG less (but it's hard to beat metal for durability), If this is your first visit, be sure to i was surprised to find that it took 50# thrust on damp grass just to get my trike to roll (no eng). The Rotax 277 vibrates something fierce. We can go to 1,200 for any unlikely person fortunate enough to have that kind of thrust. I've been shopping for a better prop for a while. Here is an engine weight comparison. http://www.utahrotorcraft.org/WR/Western_Rotorcraft_2013_07_hires.pdf. The installed weight of a 3002/3003 engine typically comes in at about 45 lbs less than a Rotax 912. ;). HighWing. Using these cookies, we can, for example, determine the number of visitors and the effect of certain pages on our website and optimize our content. How much does prop pitch play into the equation? Monty replied by email to me: "hi xc, the scale was a game scale, $20 on internet, i made the 'tell-tale out of scraps. Never had a problem. I would think it also puts more stress on the engine mount, so your engine mount would need to be more hefty). It won't handle the inertia of a longer, heavier prop. Marketing cookies come from external advertising companies and are used to collect information about the websites visited by the user. These cookies are essential for the operation of the site. Mine won't win thats for sure. (rebuilt) Horsepower: 40 Weight: 55 lbs Price: $2,850. Its expected to see 200lbs to 900lbs. The VWs do not require a large battery to start, the ULTRASTART RED BATTERY weighs 4.4 lbs and will start the engine just fine (but not much power is left in reserve if you loose the generator). Rotax 912 165 Includes 20 lbs radiator, et, CAM-100 225 Includes 20 lbs radiator, etc. FW use the tail wheel or mains (with tricycle gear), like the other aircraft. The compact and light weight design of Rotax aircraft engines has been developed by pilots for pilots for use on many kind of aircraft. you know what else would be interesting would be to get a sound meter to award the quietest thrust winner also. Not only that, but it also comes in at about half the cost! 11-12-2011, 11:34 AM #2. Wow, this is cool. FLYROTAXROTAX KARTRACELIKENEVERBEFOREROTAX ACADEMYRIC, 2020 BRP-Rotax GmbH & Co KG Legal Notice Privacy Policy Cookie Details Imprint Links Contact. Rotax 582 95 Includes 20 lbs radiator, etc. In summary, I was very happy with the Rotaxs but did not expect a lot out of the A-75.Warp. Prices include a fan or enhanced free-air cooling: Make: Kawasaki 440-A, air-cooled Like New!

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