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Topic: Power-to-weight ratio

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Encyclopedia: Power-to-weight ratio In this usage the power-to-weight ratio is typically used to refer to the weight of the engine alone, as a useful way of comparing various aircraft engines. In any vehicle the engine power-to-weight ratio is essential for vehicle power-to-weight ratio. The power-to-weight ratio is often used as an indication of likely accelerative performance. www.nationmaster.com /encyclopedia/Power_to_weight-ratio   (308 words)

power/weight ratio, gas vs. electric? : RC Universe! The Ultimate RC forum An electric motor, to be sure, is capable of competing with an internal combustion engine in terms of power to weight ratio, but only if you could run a power lead to the plane from a wall socket, which would compromise the aerobatics a bit! Certainly if power, torque, run time, thrust etc were all equal one would prefer the setup with the lower weight but they never are all equal. Genuine gas engines and ancilliaries tend to be rather heavy for the power they produce so they too have low power/weight. utopia.rcuniverse.com /rcarchive/130/2003/04/1/144529   (1968 words)

NewBeetle.org Forums - Powr To Weight Ratio Power to weight ratio is a very important aspect in the quest for speed. My original GTI had only a 90 hp engine (stock) but the power to weight ratio was good, However it still is over weight when compared to a Lotus Elise that wieghs in at 1500-1800lbs depending on the market. forums.newbeetle.org /showthread.php?threadid=34910   (1274 words)

RX8Club.com - Power-to-Weight Ratio Comparison Mazda designed the gearing ratios of the RX-8 to emphasize the wide powerband rather than quickest acceleration. Power band is the RPM range for the engine where it is operating at or near peak torque. Ideally you want the power band to be as broad as possible, starting as low as possible. www.rx8club.com /showthread.php?t=8704   (1586 words)

Club RSX Message Board - 12 second quarter mile traction & power to weight ratio First; I read somewhere that a power to weight ratio of 10 to 1 makes a 12 second car. It should actually be Weight to Power ratio. Power to weight is generally less than one, but bigger numbers are easier to compare so weight to power is what is generally looked at, but still referred to as power to weight for some reason. forums.clubrsx.com /showthread.php?t=68751   (916 words)

Description of a very simple model to predict vehicle performance from power to weight ratio alone Power is calculated by multiplying the torque by the speed of the crank. So if the gear ratio is 2 and the final drive ratio is 4 then each rev from the engine will be divided by 2 and then divided by 4 to come up with 1/8th of a rev at the wheels. The power at the wheels is used to overcome rolling resistance and drag power losses. www.tomstickland.co.uk /astra/homework/hwork.htm   (2622 words)

Electric power to weight ratio - RC Groups In level flight and at constant airspeed, lift is approximately equal to weight and thrust is approximately equal to drag. So, my roughly weight estimation for your model should not be greater than 1.0 to 1.8 pounds dependig on the wing's airfoil and size. It is true that if you use inefficient cheap can motors you probably need a bit more power than the formula would suggest and if you use high quality brushless at around their optimum efficiency point you could get away with less. www.rcgroups.com /forums/showthread.php?t=242678   (1371 words)

Power To Weight Ratio refers to the ratio of the horsepower as compared to the weight of a given vehicle. This, and a few other very important factors such as traction, power curve, and final drive ratio are directly related the the vehicle's acceleration ability. This is due to the fact that the rated 345 horsepower is only avalible within a limited RPM range, and the single 1:1 drive ratio would only allow a practical.5 P:WR over an approximate 15 - 20 MPH range of the bikes total speed potential. www.richmondlabs.com /Automotive/RichmondV8/PWR.html   (158 words)

CarStereos.org / SoundIllusions.net - Power to weight ratio Q's Power to weight ratio is the most important factor in accelerating quickly. But the raw numbers are 13.78:1 power to weight ratio is about what my car sits at, and it's went a traction limited 13.3. The good thing about a car with little power, but good p/w ratio, not only do you have the acceleration of a larger car with the same p/w ratio, your usually way more nimble. www.soundillusions.net /Forum/printthread.php?t=32562&pp=40   (2304 words)

ESPN.com: OLY - Armstrong needs to attack To determine the ratio, we take a rider's maximum sustainable power and divide it by his weight in kilograms, giving us a value in watts per kilogram. Power-to-weight ratio matters most in the mountains, where riders have to use their power to overcome the effects of gravity. Power-to-weight ratio is one of the measures used to compare Tour de France contenders, and Armstrong has an advantage over Ullrich in that he has a higher ratio. espn.go.com /oly/tdf2003/s/2003/0718/1582754.html   (839 words)

MATERIAL-HANDLING EQUIPMENT: Search High and Low Side-mounted engines also require an angle drive, resulting in a loss of power and a poor power-to-weight ratio. This provides many significant advantages, including a better power-to-weight ratio, easy-to-access service points and a direct drive to the transmission. However, the low-profile high-boom pivot design, with its 95-inch overall height, is superior for safe handling of materials and an excellent power-to-weight ratio. rermag.com /mag/equipment_materialhandling_equipment_search   (546 words)

Lance Armstrong makes the Tour climbs look easy. Ever wonder how he does it? To determine your power-to-weight ratio, perform a 30-minute uphill time trial using a powermeter to monitor the watts you are able to generate on the bike. Maintaining an efficient power-to-weight ratio is a key concern for athletes during the mountain stages of the Tour de France. Power-to-weight ratio may play an even bigger role in events like Wildflower or Ironman Canada, where the hills on the bike course can be extremely demanding on the body. www.insidetri.com /train/tips/articles/1639.0.html   (1004 words)

Naval Technology - Rolls-Royce MT30 delivers a market leading power-to-weight ratio The Rolls-Royce MT30 delivers a market leading power-to-weight ratio and reduced operating and through-life costs. It has been selected by the US Navy to power the technology demonstrator for the DD(X) programme. This image is to illustrate the Rolls-Royce company profile. www.naval-technology.com /contractors/propulsion/rolls/rolls3.html   (75 words)

GTP Forums - Power-to-weight ratio calculations? The power-to-weight ratio given in the showroom screen is the standard weight of the car divided by the true, broken-in power of the car. As it is, GT3's "Power-to-weight ratio" is incorrect, as that implies an amount of power per unit weight, the higher the better. However, the Toyota Supra RZ which has a weight of 1510kg and 276HP gives a power to weight ratio figure of 4.631. www.gtplanet.net /forum/printthread.php?t=44320   (1928 words)

Increasing Power to Weight ratio It's virtually always better to think about increasing the amount of power that you can produce, it's generally easier to increase power rather than loose mass, has added benefits (you'll be faster on the flat and uphill) and is more trainable. However, if you are looking at weight loss, then aim to loose no more than 0.5 kg per week, which is a kcal deficit of 500 kcal/day. Generally, the purpose of training is to increase power output. www.cyclingforums.com /showthread.php?t=16222   (303 words)

Description of a very simple model to predict vehicle performance from power to weight ratio alone This means that over the 0-60mph increment cars with high power to weight ratios don't do as well as expected, whilst those with low power to weight ratios do better than expected. Alternatively, take your percentage change in power to weight ratio, divide by 3 and that will be the percentage change in 1/4 mile time. The equation shows that instantaneous acceleration is the power to weight ratio divided by the instantaneous speed. www.tomstickland.co.uk /astra/homework/simple_acc_model.htm   (1554 words)

www.ifish.net: Power to weight ratio with SJ and OJ motors.... So if power to weight ratio were equal (in general), I could go up to a boat that weighs another 250# and still maintain 'similar' performance. Power to weight ratio with SJ and OJ motors.... Re: Power to weight ratio with SJ and OJ motors... www.ifish.net /forum/showflat.php?Number=776196   (603 words)

1 1, Power to weight ratio is commonly used when comparing vehicles or engine and aircrafts. 1, "Power to Weight Ratio" means how much power something has opposed to how much it weighs. 2, To improve the "power to weight ratio" we must reduce the weight of the car. intranet.footscray.vic.edu.au /solar_2004a/unnamed/Power.htm   (101 words)

Runner's & Triathlete's Web Cycling: Going Uphill Fast Power to weight ratio has two components: first, the ability to ride for long periods of time at a Maximum Sustainable (MS) power. Increasing your power to weight ratio by reducing your body fat (for those of you who can loose a few extra pounds). On short climbs being a typical pure climber (slight build with an excellent power / weight ratio) is not always an advantage over a heavier but more explosive rider with a very high MS power over short climbs. www.runnersweb.com /running/news/rw_news_20050516_TSF_Climbing.html   (1616 words)

The Sport Factory - Atlanta's Coaching and Training Resource Off Season Training : TRAINING NEWS Increase his power to weight ratio by either getting stronger, getting lighter, or both. Simply stated, the ability to move a lot of weight on the leg press can eventually be converted to the ability to apply more power to the pedals. Ultimately increases the amount of power that can be applied to the pedals, swim stroke, or running stride. speed-factory.com /offseasontraining.shtml   (1085 words)

Best power to weight ratio, or more hp and tires? - Forza Motorsport Forums power to weight ratio is the way to go, but if the tire cannot stand it... Increasing your power to weight ratio helps in the 60-100 range, but can actually hurt you in the 0-60 range. Shouldn't the best power to weight ratio give you more 'real' power. forums.forzamotorsport.net /forums/42/ShowPost.aspx   (1478 words)

AudiWorld Forums: I thought it had to do with power to weight ratio as well. AudiWorld Forums: I thought it had to do with power to weight ratio as well. I thought it had to do with power to weight ratio as well. Would the A6 4.2 have the same weight concerns as the RS6? forums.audiworld.com /rs6/msgs/8509.phtml   (152 words)

NASIOC - 2.5RS power to weight ratio? That comes out to about a 21:1 weight to power ratio...not good. NASIOC > NASIOC General > General Community > 2.5RS power to weight ratio? View Full Version : 2.5RS power to weight ratio? forums.nasioc.com /forums/showthread/t-413342.html   (1486 words)

DragSource.com - Power To Weight Ratio Calculator Horsepower to weight ratio is the amount of weight every 1 horsepower on your car has to push. Your power to weight ratio will appear here once you input your Wheel Horsepower and Curb Weight above. www.dragsource.com /ptwcalc.html   (36 words)

Dictionary of Automotive Terms Abbreviations The ratio of the depth of the deepest pit to the average penetration as calculated from weight loss A white, ductile, malleable, noble metal of the platinum family; atomic number 46, atomic weight 106.4; resembles platinum and together with other platinum metals is used as a catalyst in automotive exhaust converters. An automatic transmission gear that shifts a vehicle into a lower gear for a short burst of extra power to pass other cars on the highway. 100megsfree4.com /dictionary/car-dicp.htm   (8264 words)

power to weight ratio? I'll put power to weight like this, if you have 1hp for every 10 pounds of weight, your cars is pretty fast. In other words, a 2800LB neon, with 280hp has the same power to weight as a corvette which is about 3500Lbs with 350Hp. Dodge Forum.com is not affiliated in any way with DaimlerChrysler. www.dodgeforum.com /m_119602/tm.htm   (285 words)

Page 2 - Power to Weight Ratio So that is a power to weight of 5.0. 77 kg, and my updated power (from a 22 minute time trial this afternoon) is 388 watts. Powered by: vBulletin Copyright © 2000 - 2005, Jelsoft Enterprises Ltd. www.cyclingforums.com /t-283764-15-2.html   (163 words)

Commuting/Touring Bike The NiMH have the highest power/weight ratio, but are expensive ($190 for NiteRider replacement) and don't handle cold well. Generator systems don't put out much light -- typically 2 Watts compared to 10-32 for battery powered devices. And the weight of both is 3.59 pounds. www.faughnan.com /touringbike.html   (4676 words)

Enjoy The Drive -- Lots Of Power, Little Weight Oh, and about the license plate: That extra line on the bottom ("The power is on") isn't standard New York DMV issue. It sends the power through a Borg-Warner 5-speed manual transmission and a narrowed Vega rear end with 3.36:1 Posi. It's running about 180 horsepower and weighs about 1,600 pounds, which makes it run about even up with Corvettes and musclecars. www.enjoythedrive.com /content?id=9483   (179 words)

Power-to-weight Ratio Encyclopedia Article, Definition, History, Biography Looking For power to weight ratio - Find power to weight ratio and more at Lycos Search. Find power to weight ratio - Your relevant result is a click away! Look for power to weight ratio - Find power to weight ratio at one of the best sites the Internet has to offer! www.karr.net /encyclopedia/Power-to-weight_ratio   (148 words)

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