It was great low tech ingenuity. you know what else would be interesting would be to get a sound meter to award the quietest thrust winner also. We can go to 1,200 for any unlikely person fortunate enough to have that kind of thrust. So many airports are noise sensitive. By the time static thrust testing took place at 11am Saturday morning, warm temperatures had pushed the density altitude to 6,400 feet. Although static thrust does not tell the whole story, the resulting data does tell part of the story…plus this is great fun. The compact and light weight design of Rotax aircraft engines has been developed by pilots for pilots for use on many kind of aircraft. or just test in the configuration you fly? Please inquire. also the readings varied greatly with max rpms versus cruise.". http://www.utahrotorcraft.org/WR/Western_Rotorcraft_2013_07_hires.pdf.
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. Quietest...yes. In preparation, I Static Thrust tested my four trikes today. 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. I'm in search of empirical data…and the “perfect ride.”. 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. To further improve our offer and our website, we collect anonymous data for statistics and analysis. Also note the dynamometer has a memory needle so you never need to get beside or behind the prop. 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. FW use the tail wheel or mains (with tricycle gear), like the other aircraft.
In summary, I was very happy with the Rotaxs but did not expect a lot out of the A … In summary, I was very happy with the Rotaxs but did not expect a lot out of the A-75.Warp. How much does prop pitch play into the equation? it works good. Plus obstructions in the back have an affect...free vortex in the flow field, etc.... essentially OGE (Out of Ground Effect) compression type phenomenon. 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). @MontyStone showed one once he rigged up with a simple weight scale meter with a memory needle on it. I see the A-65 is 173 lbs, whereas the electric start C-85 is 207 lbs, which sounds about right. The Rotax 277 vibrates something fierce. I've been shopping for a better prop for a while. Re: Here is an engine weight comparison: Rotax, Continental + others Major Skeptic here. think it's also important to note that the C-85's are often fitted with a metal prop. Rotax aircraft engines stand for outstanding performance, reliability, low fuel consumption and reduced emissions. The thrust from the 3003 will leave a 912 in the dust. I test them as I fly them. Six participants submitted their machines for testing. ;). It won't handle the inertia of a longer, heavier prop. These cookies are essential for the operation of the site. Example - granted not a Stratus, but some of the NSI Subaru … 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. 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). View Profile View Forum Posts Private Message Senior Member Join Date May 2009 Location Goodyear, AZ Posts 1,742. It's designed for the short light weight props on paragliders. 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). (but really produces the power - that weight is also from the Stratus web site). FLYROTAXROTAX KARTRACELIKENEVERBEFOREROTAX ACADEMYRIC, © 2020 BRP-Rotax GmbH & Co KG Legal Notice Privacy Policy Cookie Details Imprint Links Contact. Not only that, but it also comes in at about half the cost! Continental O-300 277 Lycoming O-320-A 243 Lycoming O-320-D 253 Franklin 335 320. check out the. Mine won't win that’s for sure. Never had a problem. The larger and more popular (now days anyway) Subaru engine is the 2.2 Liter, which weights a whopping 315 lbs !!!!! We will use a “Y” bridle with each rope end making two wraps at or near each axle and use a bowline knot. It was tearing up my airframe. i was surprised to find that it took 50# thrust on damp grass just to get my trike to roll (no eng). Rotax 618 136 Includes 20 lbs radiator, etc. I’m posted this to try to generate some interest for a Static Thrust Competition at B-Days.Typically you compete with others with the same engine…the props, carbs, re-drives and engine compression are the key variables. Rotax 912 165 Includes 20 lbs radiator, et, CAM-100 225 Includes 20 lbs radiator, etc. Just looking around on the googlesphere and WOW Those dynamo meters are some spendy beasts. Do you re-pitch for the static comp? Here is an engine weight comparison. It’s expected to see 200lbs to 900lbs. But the trade off is that you get exceptionally better performance. 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. 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). The fuel burn of the 3002/3003 will be slightly more than a 912, but not significantly. I found this on the internet, so I don't know how accurate it is, but all weights are in lbs. 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
Rotax 582 95 Includes 20 lbs radiator, etc. I do mine by myself outside the aircraft with my hands on the throttle and near the switches. Marketing cookies come from external advertising companies and are used to collect information about the websites visited by the user. Rotax Powertrains . Number of cylinders 1 3 2 4. My gyro is at another airport and I will test it later. Prices include a fan or enhanced free-air cooling: Make: Kawasaki 440-A, air-cooled Like New! Productfinder Clear all filters.
Here are my results: Rotax 277, 58” PowerFin, 2-blade = 200.2 lbsRotax 447, 68” Ivo, 2-blade = 300.6 lbsRotax 503, 70” PowerFin, 3-blade = 400.7 lbsContinental A75, Warp Drive, 3-blade = 350.3 lbs. The pilot can be in or out of the aircraft, whichever is easier to manipulate the throttle and switches. Let us know what happens CBurg. I have my stock configuration of 80HP Rotax 912 UL with an Arplast 3 blade prop- not sure what the prop diameter is.
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