The C4V Battery – Solid-State in Production?

Dean Sigler Batteries, Electric Aircraft Components, Electric Aircraft Materials, Sustainable Aviation 0 Comments

Jeffrey Engler of Wright Electric posted an item about Charge CCCV, LLC (C4V) which “demonstrated a prototype of its new Solid State Battery (SSB) at the NY BEST 2018 Fall Conference in New York.  The Company’s SSB solution delivers higher performance, higher density, lower cost batteries that promise to require significantly less charging time than others.”  The startup announced a 380 Watt-hour-per-kilogram battery already in production.  Since your editor tends to become a bit snarky about the usual two-to-five-year period of anticipation before these numbers become reality, he rushed to check out the claims. Plausible Numbers, but Uncertain Time Frame The firm’s numbers are not wildly excessive, and they seem to be getting funding and finding partnerships with established companies.  …

Terrafugia’s TF-2

Dean Sigler Batteries, Electric Powerplants, Hybrid Aircraft, Sky Taxis, Sustainable Aviation 0 Comments

Terrafugia, unabashedly calling its vehicles “flying cars” in many of its public pronouncements, has floated a concept that is a serious departure from their two previous designs.  The TF-2 will be the equivalent of a shuttle bus, but with an aerial means of making a longer haul than mere in-town hops. Started by MIT graduates, many of them members of the rocketry club, Terrafugia has managed to garner an enormous number of media hits.  It even became a possible Christmas gift in the 2010 Hammacher Schlemmer Christmas catalog. It flew its Transition before the crowds at AirVenture in 2013, and was able to obtain certification as a Light Sport Aircraft since then, but with a slightly higher than original LSA …

The 17X Aluminum-Air Battery?

Dean Sigler Batteries, Electric Aircraft Materials, Sustainable Aviation 0 Comments

Jaephil Cho has a surprise for us – an aluminum-air battery that is potentially (no pun intended) more energetic than gasoline.  Director of the Research Center for Innovative Battery Technologies and Professor in the School of Energy and Chemical Engineering, at Ulsan National Institute of Science and Technology (UNIST), Cho and his students have released over 350 papers, including one titled, “Seed-mediated atomic-scale reconstruction of silver manganate nanoplates for oxygen reduction towards high-energy aluminum-air flow batteries.” While such titles might not get him on the NY Times best-seller list, Cho is widely respected, UNIST reporting he has been named to the 2017 Highly Cited Researchers List in materials science, a second such honor for him. Professor Cho’ Surprise Professor Cho’s …

Carbon Fiber and the Grand Unified Airplane

Dean Sigler Batteries, Electric Aircraft Components, Electric Aircraft Materials, Solar Power, Sustainable Aviation 0 Comments

Your editor has long held the belief that we are on the threshold of creating a Grand Unified Airplane, a craft that would draw all its energy from solar cells, the flexing of its wings, the air passing over its form, and the very act of flight itself.  It seems to become less of a science fiction ideal and more of real-world possibility every day.  Carbon fiber could be part of that possibility. What if your airplane were its own battery?  Think of the weight savings and potential endurance and range.  Your editor became fascinated with 2010 research done by Dr. Emile Greenhalgh of Imperial University in London, who developed a structural sandwich with carbon fiber outer layers and a …

Eraole in Flight – Further and Higher

Dean Sigler Biofuels, Diesel Powerplants, Electric Powerplants, Hydrogen Fuel, Solar Power, Sustainable Aviation 0 Comments

Eraole is a unique machine in a sea of unique craft.  Powered by a combination of sunlight, Total biofuel, and hydrogen, Raphael Dinelli’s tandem-winged biplane has been under development for many years.  With it, Raphael hopes to cross the Atlantic in 2019, Duplicating Charles Lindbergh’s 1927 flight at about half the Spirit of the Spirit of St. Louis’s speed. Eraole’s first flight took place in 2016.  The video will allow you to compare its look then with its changed appearance today. Changes of Plane, Changes of Plans Dinelli’s original plan for the flight included the use of an algae-derived fuel to run Eraole’s engine/generator.  As reported by La Tribune, though, “For four years, the Ocean Vital Foundation conducted research with …

Ammonia + Light = Hydrogen

Dean Sigler Biofuels, Fuel Cells, Hydrogen Fuel, Sustainable Aviation 0 Comments

Hydrogen continues on its course of always being five to ten years away as a cheap, viable storage mechanism for energy.  The ideal of driving a car that emits only water vapor (or flying an airplane that zooms about on a few pounds of H2) seems like an ever-distant dream. Tina Casey, writing for Gas2.com reports on Rice University solution using stinky ammonia that might clear the air for hydrogen, though.  She explains that the October 8th celebration of the fourth annual Hydrogen and Fuel Cell Day was great for natural gas stakeholders, since the gas is the primary source today for hydrogen.  Her headline indicates this could become a leading way to store and extract H2: “Forget the Hydrogen …

Volocopters to Hover Over Singapore

Dean Sigler Announcements, Electric Powerplants, Sky Taxis, Sustainable Aviation 0 Comments

Helena Treeck from Volocopter sent the following message this morning: “Bruchsal/Paris/Singapore, October 2018 – Volocopter, the pioneer in urban air mobility, announced today during Autonomy – the Summit of Urban Mobility in Paris, that they will perform a next set of inner urban flight tests in Singapore. The series of test that are scheduled to take place in the second half of 2019 are supported by the Ministry of Transport (MOT), Civil Aviation Authority of Singapore (CAAS), and Economic Development Board (EDB).” Already undergoing testing in Germany and Dubai, Volocopter’s 2X appears to be the company’s flagship for continuing development.  The following video (in French) intercuts a representative explaining the benefits of the Volocopter with images of its public flight …

Promising 3D Printed Microlattice Battery

Dean Sigler Batteries, Electric Aircraft Components, Electric Aircraft Materials, Sustainable Aviation 0 Comments

The three biggest words in battery structures are “Area, Area, Area.”  The more anode and cathode area a battery can expose to the electrolyte that carries ions and electrons between the positive and negative ends of the battery, the better.  Most battery configurations, according to researchers at Carnegie Mellon University and Missouri University of Science and Technology, block a great deal of interaction between these elements.  Their solution is to go porous in a microlattice battery, thanks to 3D printing. Electrodes present some surface area to the electrolyte, which can only interact with the surface area presented.  Rahul Panat at Carnegie Mellon and Jonghyun Park at Missouri S & T have created a cube-shaped battery composed of microlattice electrodes which …

UAVOS Flies ApusDuo HAPS

Dean Sigler Electric Powerplants, Solar Power, Sustainable Aviation 0 Comments

UAVOS, located in the midst of surrounding Google properties in Mountain View, California, sells a wide variety of goods and services related to the unpiloted aircraft world.  One of their biggest creations so far, the ApusDuo High Altitude Psuedo Satellite (HAPS) ran through a full series of tests.  The 10-meter span prototype vehicle will test control algorithms, including takeoffs and landings and verify HAPS aerodynamics.  According to UAVOS “Test flights fully confirmed the flight characteristics of the UAV.”   This is good news, since their next step will be to make at least a 15-meter wing (49.2 feet) wingspan version.  That will rely even more on “Control of roll, pitch, v-shape and slip…due to a controlled change in the angle of …

Communicating Between Ducted Fans and the Wing

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Aircraft quite often seem to get designed as an assembly of separate components, wings an entity unto themselves, engines or motors something attached to the fuselage or wings, and not always seen as a set of matched components until final assembly.  Quite often, different components are compromised from their optimal shape or structure because of the need to integrate them with other parts of the craft.  One group of researchers is finding ways to even cause components to begin communicating among themselves. Some parts, such as engines or motors, are hung on the wing or fuselage as replacements for earlier design variants.  The new powerplants may provide additional power, but they may also interfere with the overall performance and handling …