The Honda Valkyrie is a motorcycle that was manufactured by Honda from 1997 to 2003. It was designated GL1500C in the US market and F6C (" Flat Six Custom ") in other markets.
41-412: Back in the 90's there was a resurgence of interest in cruiser motorcycles , that generally feature a V-twin engine . The idea of an American cruiser styled motorcycle featuring a flat six engine came from Josef Boyd . The Valkyrie engine is a 1,520 cubic centimetres (93 cu in) liquid-cooled , horizontally opposed flat-six engine shared with Honda's Gold Wing 4th generation model, unlike
82-403: A continuous flow of electrolyte. Flow cells typically have the fuel dissolved in the electrolyte. Power-to-weight ratios for vehicles are usually calculated using curb weight (for cars) or wet weight (for motorcycles), that is, excluding weight of the driver and any cargo. This could be slightly misleading, especially with regard to motorcycles, where the driver might weigh 1/3 to 1/2 as much as
123-406: A cutoff voltage are typically specified for a battery by its manufacturer. The output voltage falls to the cutoff voltage when the battery becomes "discharged". The nominal output voltage is always less than the open-circuit voltage produced when the battery is "charged". The temperature of a battery can affect the power it can deliver, where lower temperatures reduce power. Total energy delivered from
164-467: A fluid, or storage in a pressure vessel . A variety of effects can be harnessed to produce thermoelectricity , thermionic emission , pyroelectricity and piezoelectricity . Electrical resistance and ferromagnetism of materials can be harnessed to generate thermoacoustic energy from an electric current. All electrochemical cell batteries deliver a changing voltage as their chemistry changes from "charged" to "discharged". A nominal output voltage and
205-563: A higher discharge current – and therefore higher power-to-weight ratio – but only with a lower energy capacity. Power-to-weight ratio for batteries is therefore less meaningful without reference to corresponding energy-to-weight ratio and cell temperature. This relationship is known as Peukert's law . Capacitors store electric charge onto two electrodes separated by an electric field semi-insulating ( dielectric ) medium. Electrostatic capacitors feature planar electrodes onto which electric charge accumulates. Electrolytic capacitors use
246-406: A liquid electrolyte as one of the electrodes and the electric double layer effect upon the surface of the dielectric-electrolyte boundary to increase the amount of charge stored per unit volume. Electric double-layer capacitors extend both electrodes with a nanoporous material such as activated carbon to significantly increase the surface area upon which electric charge can accumulate, reducing
287-507: A mass of 380 kg (840 lb), giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines. This is because of their ability to operate at very high speeds. For example, the Space Shuttle 's main engines used turbopumps (machines consisting of a pump driven by a turbine engine) to feed the propellants (liquid oxygen and liquid hydrogen ) into
328-610: A naked Standard and later, a Tourer model were offered. The Tourer included a windshield and lockable hard saddlebags. It was designated as a GL1500CT In 1999, the Interstate model was added to the lineup, which included a fork-mounted fairing along with a larger capacity fuel tank with 26 Liters (6.9 US gallons) and a trunk at the rear of the motorcycle. It also featured a stiffer frame, better shocks, AM/FM radio, radiator pods for better wind management and wired intercom. Honda offered optional CB radio and fog lights mounted inside of
369-647: A period of time is equal to the difference in its total energy over that period of time, so the rate at which work is done is equal to the rate of change of the kinetic energy (in the absence of potential energy changes). The work done from time t to time t + Δ t along the path C is defined as the line integral ∫ C F ⋅ d x = ∫ t t + Δ t F ⋅ v ( t ) d t {\displaystyle \int _{C}\mathbf {F} \cdot d\mathbf {x} =\int _{t}^{t+\Delta t}\mathbf {F} \cdot \mathbf {v} (t)dt} , so
410-463: A single charge cycle is affected by both the battery temperature and the power it delivers. If the temperature lowers or the power demand increases, the total energy delivered at the point of "discharge" is also reduced. Battery discharge profiles are often described in terms of a factor of battery capacity . For example, a battery with a nominal capacity quoted in ampere-hours (Ah) at a C/10 rated discharge current (derived in amperes) may safely provide
451-401: A speed | v ( t ) | {\displaystyle |\mathbf {v} (t)|\;} and angle ϕ {\displaystyle \phi \;} with respect to the centre and radial of a gravitational field by an onboard powerplant , then the associated kinetic energy is where: The work–energy principle states that the work done to the object over
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#1732801704172492-667: A train. As the coefficient of friction between steel wheels and rails seldom exceeds 0.25 in most cases, improving a locomotive's power-to-weight ratio is often counterproductive. However, the choice of power transmission system, such as variable-frequency drive versus direct-current drive , may support a higher power-to-weight ratio by better managing propulsion power. Most vehicles are designed to meet passenger comfort and cargo carrying requirements. Vehicle designs trade off power-to-weight ratio to increase comfort, cargo space, fuel economy , emissions control , energy security and endurance. Reduced drag and lower rolling resistance in
533-522: A vehicle design can facilitate increased cargo space without increase in the (zero cargo) power-to-weight ratio. This increases the role flexibility of the vehicle. Energy security considerations can trade off power (typically decreased) and weight (typically increased), and therefore power-to-weight ratio, for fuel flexibility or drive-train hybridisation . Some utility and practical vehicle variants such as hot hatches and sports-utility vehicles reconfigure power (typically increased) and weight to provide
574-408: Is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used as a measurement of performance of a vehicle as a whole, with the engine's power output being divided by the weight (or mass ) of the vehicle, to give a metric that
615-402: Is an important vehicle characteristic that affects the acceleration of sports vehicles. Propeller aircraft depend on high power-to-weight ratios to generate sufficient thrust to achieve sustained flight, and then for speed. Jet aircraft produce thrust directly . Power-to-weight ratio is important in cycling, since it determines acceleration and the speed during hill climbs . Since
656-417: Is conversely usually lower. Fuel cells and flow cells , although perhaps using similar chemistry to batteries, do not contain the energy storage medium or fuel . With a continuous flow of fuel and oxidant, available fuel cells and flow cells continue to convert the energy storage medium into electric energy and waste products. Fuel cells distinctly contain a fixed electrolyte whereas flow cells also require
697-500: Is equal to thrust per unit mass multiplied by the velocity of any vehicle. The power-to-weight ratio (specific power) is defined as the power generated by the engine(s) divided by the mass. In this context, the term "weight" can be considered a misnomer, as it colloquially refers to mass. In a zero-gravity (weightless) environment, the power-to-weight ratio would not be considered infinite. A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and
738-420: Is independent of the vehicle's size. Power-to-weight is often quoted by manufacturers at the peak value, but the actual value may vary in use and variations will affect performance. The inverse of power-to-weight, weight-to-power ratio (power loading) is a calculation commonly applied to aircraft, cars, and vehicles in general, to enable the comparison of one vehicle's performance to another. Power-to-weight ratio
779-522: Is mostly due to the fact that besides the engine, all remaining parts were custom made by Honda exclusively for the Rune. The production numbers are not confirmed, allegedly Honda made around 3,000 units and assigned one to each licensed dealership in the North America. To quote a Canadian Honda representative in 2004: "There will definitely be less than one per dealer.". Apparently the original idea
820-499: Is only delivered if the powerplant is in motion, and is transmitted to cause the body to be in motion. It is typically assumed here that mechanical transmission allows the powerplant to operate at peak output power. This assumption allows engine tuning to trade power band width and engine mass for transmission complexity and mass. Electric motors do not suffer from this tradeoff, instead trading their high torque for traction at low speed. The power advantage or power-to-weight ratio
861-405: Is then where: The useful power of an engine with shaft power output can be calculated using a dynamometer to measure torque and rotational speed , with maximum power reached when torque multiplied by rotational speed is a maximum. For jet engines the useful power is equal to the flight speed of the aircraft multiplied by the force, known as net thrust, required to make it go at that speed. It
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#1732801704172902-455: Is used when calculating propulsive efficiency . Thermal energy is made up from molecular kinetic energy and latent phase energy. Heat engines are able to convert thermal energy in the form of a temperature gradient between a hot source and a cold sink into other desirable mechanical work . Heat pumps take mechanical work to regenerate thermal energy in a temperature gradient. Standard definitions should be used when interpreting how
943-520: The Honda Goldwing 5th Generation. It was a major departure from the original Valkyrie in styling and purpose. The objective of the Rune was to be a tour de force, showing what Honda as a manufacturer could develop. To quote the project leader, Masanari Aoki, "No performance goals, no distinct function, purchase price not a consideration.". Its debut price in 2004 was US$ 27,000, but they actually cost over US$ 100,000 each to be manufactured. That
984-799: The V-twin engine commonly found on "cruiser" style motorcycles . In its transplant from the Goldwing , the most notable engine changes were the camshaft and the change to six individual 28 mm carburetors , one for each cylinder, changes which increased power and torque . The Valkyrie was offered with a reverse gear in Japan. The Valkyrie was made in the United States at the Honda motorcycle plant in Marysville, Ohio . On introduction in 1997,
1025-405: The derivative with respect to time of the work done). The typically used metric unit of the power-to-weight ratio is W kg {\displaystyle {\tfrac {\text{W}}{\text{kg}}}\;} which equals m 2 s 3 {\displaystyle {\tfrac {{\text{m}}^{2}}{{\text{s}}^{3}}}\;} . This fact allows one to express
1066-474: The fundamental theorem of calculus has that power is given by F ( t ) ⋅ v ( t ) = m a ( t ) ⋅ v ( t ) = τ ( t ) ⋅ ω ( t ) {\displaystyle \mathbf {F} (t)\cdot \mathbf {v} (t)=m\mathbf {a} (t)\cdot \mathbf {v} (t)=\mathbf {\tau } (t)\cdot \mathbf {\omega } (t)} . where: In propulsion , power
1107-473: The 1980s have more neutral riding positions. While traditional cruisers have limited performance and turning ability due to a low-slung design, power cruisers or similar performance-oriented cruisers can be leaned further for better cornering. Otherwise, customization can increase the bike's lean angle to enable cornering at higher speeds. Power-to-weight ratio#Vehicles Power-to-weight ratio ( PWR , also called specific power , or power-to-mass ratio )
1148-674: The EVO6 produces more power than its touring ancestor. The EVO6 features Honda's Human Friendly Transmission (HFT) that can be operated in a fully automatic mode or a six-speed manual mode. The Valkyrie was reintroduced in November 2013 (as a 2014 model) as a redesign of the GL1800 Gold Wing. The reintroduced Valkyrie (NRX1800) shared the same liquid cooled 1832cc flat six engine (117 bhp at 5,500 rpm/123 lb.-ft. torque at 4,000 rpm) as well as underlying frame and 5-speed transmission as
1189-837: The Honda Goldwing. However the Valkyrie loses the fairing, windshield and bags (windshield and bags are available Honda optional accessories). ABS is also available (not standard). The Valkyrie has an all digital multi-instrument dash screen. At the Tokyo Motor Show , Honda revealed their new 'naked' version of the GL1800, as the 2014 Valkyrie, using the same 1832cc six-cylinder engine as the Gold Wing but weighing 70 kg (150 lb) less. The new Valkyrie has increased rake and trail, front and rear suspension revised for
1230-506: The basis for custom motorcycle projects that result in a bike modified to suit the owner's ideals, and as such are a source of pride and accomplishment. Power cruiser is a name used to distinguish bikes in the cruiser class that have higher levels of power. They often come with upgraded brakes and suspensions , better ground clearance, and premium surface finishes, as well as more exotic or modern muscular (non-traditional cruiser) styling. Many power cruisers and Japanese cruisers of
1271-864: The bike in the US market. Cruiser (motorcycle) A cruiser motorcycle is a motorcycle in the style of American machines from the 1930s to the early 1960s, including those made by Harley-Davidson , Indian , Excelsior and Henderson . The riding position usually places the feet forward and the hands up, with the spine upright or leaning back slightly. Typical cruiser engines emphasize easy rideability and shifting , with plenty of low-end torque , but not necessarily large amounts of horsepower , and are traditionally V-twins . However, inline engines have become more common. Cruisers with greater performance than usual, including more horsepower, stronger brakes and better suspension, are often called power cruisers. Japanese companies began producing models evocative of
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1312-458: The dielectric medium to nanopores and a very thin high permittivity separator. While capacitors tend not to be as temperature sensitive as batteries, they are significantly capacity constrained and without the strength of chemical bonds suffer from self-discharge. Power-to-weight ratio of capacitors is usually higher than batteries because charge transport units within the cell are smaller (electrons rather than ions), however energy-to-weight ratio
1353-688: The early cruisers in the mid-1980s, and by 1997 the market had grown to nearly 60 percent of the US market. A number of motorcycle manufacturers including BMW , Honda , Moto Guzzi , Yamaha , Suzuki , Triumph and Victory have currently or have had important models evocative of the American cruiser. Harley-Davidsons and other cruisers with extensive luggage for touring have been called, sometimes disparagingly or jocularly, baggers, or full baggers, as well as dressers, full dressers, or full dress tourers. These terms are no longer limited to cruisers, but may be any touring motorcycle . Cruisers are often
1394-436: The engine's combustion chamber. The original liquid hydrogen turbopump is similar in size to an automobile engine (weighing approximately 352 kilograms (775 lb)) and produces 72,000 hp (54 MW) for a power-to-weight ratio of 153 kW/kg (93 hp/lb). In classical mechanics , instantaneous power is the limiting value of the average work done per unit time as the time interval Δ t approaches zero (i.e.
1435-442: The perception of sports car like performance or for other psychological benefit . Increased engine performance is a consideration, but also other features associated with luxury vehicles . Longitudinal engines are common. Bodies vary from hot hatches , sedans (saloons) , coupés , convertibles and roadsters . Mid-range dual-sport and cruiser motorcycles tend to have similar power-to-weight ratios. Power-to-weight ratio
1476-431: The power-to-weight ratio purely by SI base units . A vehicle's power-to-weight ratio equals its acceleration times its velocity; so at twice the velocity, it experiences half the acceleration, all else being equal. If the work to be done is rectilinear motion of a body with constant mass m {\displaystyle m\;} , whose center of mass is to be accelerated along a (possibly non-straight) line to
1517-701: The propulsive power of a jet or rocket engine is transferred to its vehicle. An electric motor uses electrical energy to provide mechanical work , usually through the interaction of a magnetic field and current-carrying conductors . By the interaction of mechanical work on an electrical conductor in a magnetic field, electrical energy can be generated . Fluids (liquid and gas) can be used to transmit and/or store energy using pressure and other fluid properties. Hydraulic (liquid) and pneumatic (gas) engines convert fluid pressure into other desirable mechanical or electrical work . Fluid pumps convert mechanical or electrical work into movement or pressure changes of
1558-546: The radiator pods. It was designated as a GL1500CF. As sales eventually dwindled, the Interstate and Tourer models were dropped after 2001, leaving only the Standard model remaining. 2003 saw the Standard offered only in black and was the last year of the original Valkyrie. Honda introduced a limited edition model in 2003 named the Valkyrie Rune with a 1,832-cubic-centimetre (111.8 cu in) engine, sourced from
1599-456: The reduced weight, 50/50 weight distribution and large tires after the fashion of sport-bikes. The Valkyrie's horsepower-to-weight ratio puts it in the muscle bike class according to some reviewers. It was expected to be on sale in early 2014, priced at about $ 17,000 for the base model (the model with an anti-lock braking system will cost more). The reintroduced Valkyrie was only available for two model years (2014 and 2015) before Honda dropped
1640-516: The vehicle itself. In the sport of competitive cycling athlete's performance is increasingly being expressed in VAMs and thus as a power-to-weight ratio in W/kg. This can be measured through the use of a bicycle powermeter or calculated from measuring incline of a road climb and the rider's time to ascend it. A locomotive generally must be heavy in order to develop enough adhesion on the rails to start
1681-531: Was to collect consumer's feedback on the limited production Rune in preparation for an upcoming commercially viable model to be released in the coming year. This model was produced at the Honda motorcycle plant in Marysville, Ohio . Honda presented the EVO6 concept motorcycle at the Tokyo Motor Show 2007. Based on the flat-six 1,832 cubic centimetres (111.8 cu in) engine from the Goldwing,