uncleflo
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Tag selected: propulsion.
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Bye Aerospace E-Flyer’s Electric Airplane Flies 525 Miles on a Charge – Robb Report
Saved by uncleflo on February 12th, 2022.
Bye Aerospace’s eFlyer 800 is a clean-sheet design that will carry eight people, including one or two pilots. The 800 will have two motors, powered by a grid of electric cells across the airframe. This is the third model in a lineup of electric planes from the Denver-based aerospace firm, but the first with two motors. The eFlyer 2 is a two-seater for professional flight training that was developed when the company launched in 2014, and the eFlyer 4, a four-seater for air taxi and advanced training, came later. Both models have more than 360 orders each. “The eFlyer 800 is the first all-electric propulsion technology airplane that achieves twin-turboprop performance and safety with no CO2 and extremely low operating costs,” said CEO George E. Bye in a statement. The eight-seat aircraft will be competing against turboprops with much higher operating costs, but will have similar interior space and accommodations. Bye Aerospace The eFlyer 800 is Bye’s response to the growing demand for all-electric aircraft that can deliver local and regional flights, but with greater capacity and capabilities, at a substantially lower operating cost than traditional fossil fuel aircraft.
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DMS Marine Consultant – DMS
Saved by uncleflo on February 12th, 2022.
We think differently about the marine industry and consider how ship design directly aligns with business goals and desired results. We translate your goals into engineering and science-backed designs focused on functionality. The net result is better return on investment.We utilize our deep understanding of maritime engineering, application of specialized simulation software and advanced engineering practices to design the most cost-effective, performance centered results. Our value grows from the increased function and longevity of your biggest fixed asset, your ship.DMS is changing how people think about ship design by putting business goals and profitability at the forefront –with designs backed by scientific data, to achieve the best performance-based outcomes. At DMS, we employ a variety of engineering tools to create solutions for you. Here are some examples. CFD. FEA. Seakeeping. Mooring analysis. We handle the tough problems. Equipment foundations. Lighter hulls. Class societies. Efficient structures mean fuel savings.
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The Boat Design Directory from Boat Design Net - the Boat Design and Boatbuilding Site
Saved by uncleflo on February 9th, 2022.
Boat Design . Net - Connecting Boat Designers and Boatbuilders on the Net. Boat Design and Boat Building Projects, Plans, Software, Books, Concepts, Reviews, and Resources. Discussion forums: boat design, boat building, powerboats, sailboats, multihulls, design software, education, services and employment. Join in the boat design & boatbuilding discussion forums today! A gallery of professional and student design work, projects in process, power and sail. Please post your boat design & boat building images for everyone to see. A marine design directory and search engine. Boat plans, designers, boatbuilders, materials, powerboats, catamarans, propulsion, sailboats, multihulls, shipyards, software, books, & resources. A site connecting boat builders and designers, showcasing innovations in design and construction and providing access to articles, resources, software, and inspirational sites.
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HOME | arcaspace
Saved by uncleflo on February 6th, 2022.
EcoRocket is designed around two main features: cost-effectiveness and eco-friendliness and it is designed to launch commercial payloads starting with 2021. The EcoRocket Heavy will follow. The first two stages are reusable and are using water-based propulsion technology that generates water vapours through cold reaction. The expandable third stage uses conventional hot rocket propulsion and it's ignited at high altitude, above the thick atmosphere. Both the first and second stage use the high efficiency aerospike engine technology. The whole rocket uses 86% water-based propellant. ARCA already tested this technology at full-scale. EcoRocket is sea-launched, directly from the sea surface, the first sea trials taking place on the Black Sea, in July 2021. EcoRocket is competing in the European Commission's 10 million Euros competition that aim to stimulate the creation of new, small orbital launchers that are cost effective and friendly to the environment.
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Simply Electric Motorcycles, Electric Motorbikes, and DIY Kits
Saved by uncleflo on April 17th, 2021.
Simply Electric Motorcycles, Electric Motorbikes, and DIY Kits. Are You Having Trouble Getting Around? Super Light Power Wheelchair for Travellers, Quick/Easy Foldable, 50% Battery Saving. You can convert your bicycles to super ebikes, quick and easy! High Power BLDC Motors for EVs and Industrial Applications.
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seriesOne Shaft Seal Overview | Tides Marine
Saved by uncleflo on April 3rd, 2021.
The seriesOne shaft seal was designed for smaller, single-engine vessels with stainless steel propeller shafts. This shaft seal fits shaft diameters from 7/8 through 1 1/4 in 1/8 increments. It can also be used on metric stainless shafting from 25mm through 30mm. The seriesOne shaft seal is covered by a one year warranty. Tides Marine suggests that all twin-engine applications use the Tides SureSeal. The seriesOne housing is produced in the same manner as the SureSeal shaft seals. However, in order to produce a shaft seal for our more cost-conscious customers, the front cap design of the seriesOne has been modified. For vessels powered by smaller diesel engines (1-3 cylinders) using softer engine mounts, the multi-convolution articulating hose is recommended. This extra flexibility compensates for increased lateral engine movement during operation.
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AgustaWestland Project Zero - Wikipedia
Saved by uncleflo on December 22nd, 2019.
The AgustaWestland Project Zero is a hybrid tiltrotor/Lift fan aircraft. It has been developed by AgustaWestland as a technology demonstrator, and is used to investigate all-electric propulsion and other advanced technologies. It is the world's first electric tiltrotor aircraft. In December 2010, AgustaWestland's management approved the formation of a team under James Wang with the intention of producing a technology demonstrator incorporating as many new innovations as possible on a single airframe. Speaking in 2013, Wang noted that electric technologies were rapidly advancing, and that the function of Project Zero was to achieve readiness with electric aircraft technologies: "Rather than waiting for the battery to become even better, then working on electric aircraft technology, the team has positioned itself to be ready for the next generation of batteries".
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1PCS 5870mAh Intelligent Flight Battery FOR DJI Phantom 4/PRO brand new 190021283992 | eBay
Saved by uncleflo on December 19th, 2019.
100% brand new Intelligent Flight Battery Drone 5870mAh 15.2V High Capacity FOR DJI Phantom 4/PRO. New higher amperage means longer flight time. Install a fresh Intelligent Flight Battery in your quadcopter and be ready to fly for up to 30 minutes. The "Intelligent" aspect of the battery enables communication that not only shows current capacity inside the app itself, it also calculates remaining flight times according to distance traveled and other factors. While flying, the battery will send an alert to notify you when the minimal capacity is available for a safe flight plan back to the takeoff point. Additionally, an internal battery management system prevents overcharging and over-draining, and when placed in long-term storage, the battery will self-discharge to a safe level in order to maintain cell health. If you live in a cold place or plan to fly on a winter break, low-temperature protection will activate. This controls available propulsion power based on the temperature of the battery, so that only a fully-warmed-up battery can offer full power. Additional Info: Four LEDs that display remaining capacity; Intelligent balanced charging circuitry built-in; Flights of 27-30 minutes on a single charge; Color:White; Up To 30 Minutes Of Flight Time; New 5870Mah - Higher Amperage; 15.2V; Calculates Remaining Flight Time; Overcharge Over-Drain Protection; Auto-Discharge For Long-Term Storage
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48V EasyBox System - FischerPanda
Saved by uncleflo on December 19th, 2019.
The 48V EasyBox System provides your boat with the simplest electric drive system. The system is quick to install (plug and play) and all electrical components are contained in one unit. It is designed to be used as a battery only system with a 48V battery bank or with the support of a DC generator as a 'range extender' . The batteries can be charged via the on board generator or shore power connection or at the touch of a button using the re-generation ‘REGEN’ function (when main engine is running or using propeller drag when sailing) Perfect for cruising on waters where combustion engines are not allowed. AGM or Lithium battery banks can be used in an Easybox system. The system is designed for mono-hulls, catamarans or trimarans requiring a single or dual drive system.
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10KW Brushless Sailboat Kit
Saved by uncleflo on December 19th, 2019.
Convert your 12-29 HP diesel engine to clean, quiet electric. Eliminate noxious diesel fumes and the frustration of filling up at the pump with the 10KW Brushless Kit featuring a Motenergy brushless motor and a 48V 450 Amp Sevcon Gen-4 Controller that can produce up to 10HP continuous and 28HP peak! Enjoy your sailboat to the fullest, with a silent drive and truly fresh air. This system is recommended for boats up to 12,000 pounds displacement. All our systems have reverse on-the-fly and contactor disable features. "Brushless" means that the motor does not have brushes that will wear out over time, nor will it be a dangerous source of ignition for on-board gas appliances. Larger boats may require a higher power AC or brushless motor. In the U.S. and Canada, brushed motors are only legal for marine use if onboard appliances and accessories use kerosene or diesel (not propane or gasoline) due to the potential for internal motor arcing.
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Electric inboard motors - P&E Lowlands
Saved by uncleflo on October 28th, 2019.
P&E Lowlands is a brand representative and dealer of equipment, installations, auxiliaries and services in the field of modern power production, storage, distribution or drives in industrial and marine applications. In the first place we focus on a sustainable future using the internal combustion engine and look for advanced energy solutions, alternative fuels and power storage opportunities. Our approach draws from the idea behind the Blue World, the expanded version of Green Energy. The Blue World starts from the circular economy, a system in which reuse of products and raw materials will be maximized. We endeavor to replace fossil fuels in internal combustion engines with renewable alternatives deriving from the circular chain. Think hydrogen or biofuels. It strengthens our belief that the entire world can run on renewable energy resources. P&E Lowlands is based in Willemstad, the Netherlands. From this central location we are within reach of companies in Benelux and the North of France to guide them on the path towards 100 % renewable energy resources. The end of the era of fossil fuels does not mean the end of the internal combustion engine. In the future the IC-engine will be a durable and energy efficient transformer of renewable energy. This will not be achieved without finding ways to store sufficient energy supplied by nature. Until then, we will help you to make your equipment run on as little energy as possible. For this we offer custom solutions. The IC-engine comes in such a way that it perfectly matches the way your machine is functioning.
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E-Tech Electric Drives Brochure | Maine Cat Catamarans
Saved by uncleflo on October 28th, 2019.
If you’re a sailor, if you like multi-hulls and if you like boats that are truly meant to sail, you owe it to yourself to take a look at the Maine Cat 38. - Adam Cort, SAIL MAGAZINE We are a private company, which was established in 1998 by Grigorij Shenkman company’s Owner & CEO. Star investments due to is profession focuses on water cooled electric engines. Company’s first steps with electric engines were made 10 years ago, in 2004. After testing first prototype of engine, our expectation were clearly unsatisfied. Since that very moment, back then company has gained more experience and the most important: Motivation which leads us to a place where we are now. Thanks to cooporation with a German engine producer, we can offer your a wide range of all types of electric motors made with passion. Engines are produced in Germany.
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Sailboat Kits & Accessories
Saved by uncleflo on May 24th, 2019.
Convert your sailboat to a clean, quiet electric drive! Eliminate noxious diesel fumes and the frustration of filling up at the pump. Enjoy your sailboat to the fullest, with a silent drive and truly fresh air. Installing an electric drive can often be cheaper than getting that old Atomic4 rebuilt. Our DIY sailboat kits are easy enough for the handy type to install on their own, but if you prefer we also have installers available the world over. Interested in becoming an installer? Great! Let's talk! We also carry products from West Marine, so if there's anything else you'd like to have shipped directly to you, we will try our best to help get what you need.
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Thunderstruck Motors Home
Saved by uncleflo on May 24th, 2019.
Thank you for checking out our website! Here you'll find our Catalog containing a tested and verified selection of EV Components and Kits that will get your electric vehicle up-and-running in no time! We frequently update our social media so you can follow along with the latest and greatest of what we've been up to in our shop, located in Northern California. DIY-ers: browse through our Manuals and Information section to see specs and data sheets.
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Smithsonian at Space Academy | Smithsonian Journeys
Saved by uncleflo on May 12th, 2019.
Go behind the scenes at the U.S. Space & Rocket Center in Huntsville, Alabama, for a VIP experience. Meet scientists, engineers, and astronauts and participate in space exploration simulations and astronaut training activities. The year 2019 marks the 50th anniversary of Apollo 11, while 2020 marks the 55th anniversary of the first walk in space. In collaboration with the renowned U.S. Space & Rocket Center, Smithsonian Journeys invites you to travel to Huntsville, Alabama for a VIP experience. Take part in classic Space Academy activities with fellow travelers who share a passion for the history and the future of space exploration.
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Sailing Uma - THE MOTOR
Saved by uncleflo on February 24th, 2019.
Many people have written in and commented that an electric motor is only good for day sailors who weren’t going very far each day, and that you need a reliable diesel engine for long distance cruising. But we feel like the opposite is true. Since we don’t have a dock to tie up to and charge our batteries each night, we rely on sailing to recharge our system. The longer we sail and the more sun we get, the more power we make. Because we don’t have a 9-5 to return to at the end of a fun weekend out on the boat, we have no schedules requiring that we make it back to the dock on time, no matter what the wind is doing. So, we feel that an electric motor, depending on your sailing style, can be adapted to any boat. But, you have to be willing to work around the one major draw back, range.
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Oceanvolt - Price & System Examples - Electric Boat Propulsion Systems
Saved by uncleflo on February 24th, 2019.
All of the system examples below are complete pure electric solutions meaning they contain everything needed for a fully functioning electric propulsion system. VAT, shipping, installation, generators & solar panels are not included in the system pricing. The system prices include: motor(s), lithium batteries, propeller(s), charger(s), system monitoring, standard warranty & system certification. Liquid cooling is included in all systems above 10kW.
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Electric Boats, In General
Saved by uncleflo on February 23rd, 2019.
Have you just bought an old sailboat with a dead or dying engine? You might have a boat worth less than a third of what a new diesel would cost, and you don't want to buy a used engine and inherit someone else's cast-off problems. Or maybe you are tired of smelling fuel, buying fuel, spilling fuel, running out of fuel, or hearing a smoke belching valve clattering clankasaurus hard at work, or crossing your fingers and hoping it will start when you actually need it. There are a lot of reasons to repower with electric drive. Electric is not for everyone. It has a lot of cons to balance out the obvious pros. But one con that is widely diseminated by self proclaimed experts is that it is expensive, and that is not necessarily the case at all. It is quite possible to replace that cranktankerous old infernal combustion engine very cheaply indeed. I did it, for less than $2500. I didn't know it at the time, but I could have spent even less.
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Surfboard Hull Design
Saved by uncleflo on September 14th, 2018.
I have been wondering about this a lot in Mini Simmons surfboard design (surfboard design in general)—what is a hull and how does it influence the board and the ride? Two factors are at work when a planing surfboard is in motion: the propulsion power, or force, that creates forward motion (the wave energy); the resistance that opposes it (your fat ass standing on the board). When at rest, a surfers weight is borne entirely by the buoyant force (also depending on how much beer you drank the night before). At low speeds every hull acts as a displacement hull, meaning that the buoyant force is mainly responsible for supporting the surfer. As speed increases, hydrodynamic lift increases as well. Ok, you got to reach back to some physics for this one.
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Jet Aircraft Propulsion Lecture 24 Types of combustion chambers mechanism & parameters
Saved by uncleflo on July 18th, 2016.
Jet Aircraft Propulsion Lecture 24 Types of combustion chambers mechanism & parameters
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Shock Mitigation in Low-Density Thermoplastic Foams Part I – Dealing with Inbound Kinetic Energy
Saved by uncleflo on December 7th, 2014.
Low-density thermoplastic foams are frequently used as energy-absorbing foams. That is, kinetic energy from an incoming mass is mostly dissipated in the foam, resulting in little, if any, throwback or reverse propulsion of the mass from the foam. Typically, energy absorption is described in terms of the area under the foam stress-strain curve. The typical stress-strain curve for a low-density foam is depicted as having three general components: At low compression, say, less than about 5%, the foam acts as a Hookean elastic spring. That is, the extent of compression, ε, is directly proportional to the applied stress, σ , with the proportionality, Ef, being the modulus of the foam: σ = Ef ε. For essentially all foams, the modulus of the foam is directly related to the modulus of the polymer, Ep, and the ratio of squares of the foam density, Ep, and polymer density, ρP: Ef = Ep (ρf / ρo)².
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Performance Evaluation of the NASA GTX RBCC Flowpath, NASA, Glenn Research Center
Saved by uncleflo on September 2nd, 2014.
The NASA Glenn Research Center serves as NASA's lead center for aeropropuision. Several programs are underway to explore revolutiolutionary airbreathing propulsion systems in response to the challenge of reducing the cost of space transportation. Concepts being investigated include rocket-based combined cycle (RBCC), pulse detonation wave, and turbine-based combined cycle (TBCC) engines.
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Air-Breathing Launch Vehicle Technology Being Developed
Saved by uncleflo on September 2nd, 2014.
Of the technical factors that would contribute to lowering the cost of space access, reusability has high potential. The primary objective of the GTX program (ref. 1) is to determine whether or not air-breathing propulsion can enable reusable single-stage-to-orbit (SSTO) operations. The approach is based on maturation of a reference vehicle design with focus on the integration and flight-weight construction of its air-breathing rocket-based combined-cycle (RBCC) propulsion system.
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NPTEL Principles of Rocket Propulsion
Saved by uncleflo on July 16th, 2014.
A video course shall consist of 40 or more lectures with 1 hour duration per lecture.
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Rinspeed's first underwater Car
Saved by uncleflo on June 19th, 2014.
Rinspeed will present its new sQuba, the worlds first diving car, at the Geneva Motor Show (March 6-16). The car is not only able to drive on roads autonomously with a push of a button (thus without a driver, passenger or further assistance), but can also transform into an amphibious vehicle which can be submerged in water up to 10 meters (33 feet). An electric motor with powerful torque drives the rear wheels, while the propulsion on the water is ensured by two propellers in the stern and two powerful jet drives in the bow propelling the vehicle under water while diving. When underwater, the driver and passenger are enclosed in the vehicle thanks to light weight body components made of futuristic Carbon Nano Tubes and are supplied with fresh breathing air by the self-contained on-board system.
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