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Electric plane at Paris Airshow
http://www.cnn.com/videos/tv/2015/06...e-fan-orig.cnn
Brian -- http://www.earthwaves.org/forum/index.php - Earth Sciences discussion http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism Sed quis custodiet ipsos Custodes? |
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Electric plane at Paris Airshow
On Wed, 17 Jun 2015 04:28:34 +0000 (UTC), Skywise
wrote: http://www.cnn.com/videos/tv/2015/06...e-fan-orig.cnn Brian Interesting. The Airbus E-Fan is intended for flight instruction. Would that be multiengine flight instruction? ----------------------------------------------------------------------- https://en.wikipedia.org/wiki/Airbus_E-Fan Airbus E-Fan From Wikipedia, the free encyclopedia E-Fan Airbus E-Fan (14088845198).jpg Airbus E-Fan in flight at 2014 Berlin Air Show Role Electric aircraft Manufacturer Airbus Group Innovations Designer Didier Esteyne[1] First flight 11 March 2014 Introduction 2017 Status Under development Number built 1 The Airbus E-Fan is a prototype two-seater electric aircraft being developed by Airbus Group. It was flight demonstrated to the world press at the Farnborough International Airshow in the UK in July 2014. The target market is pilot training. Contents 1 Design and development 2 Variants 3 Specifications 4 References 5 External links Design and development Airbus Group is developing an electric aircraft with Aero Composite Saintonge. The aircraft uses on-board lithium batteries to power the two electric motors and can carry two passengers. A test flight was conducted in April 2014 at Mérignac Airport, France, landing in front of a large audience, the French Minister of Industry Arnaud Montebourg being one of them. At the 2014 Farnborough Airshow, Airbus announced that the E-Fan 2.0 will go into production by 2017 with a side-by-side seating layout.[2] Airbus has stated that there are plans for development of a commercial regional aircraft in the near future.[3][4] The E-Fan is an all-electric two-seat twin-motor low-wing monoplane of composite structure. It has a T-tail and a retractable tandem landing gear with outrigger wheels. The two motors are mounted on either side of the rear fuselage. Two production variants are planned, a two-seater E-Fan 2.0 for use as a trainer, and the E-Fan 4.0 four-seater. The E-Fan 4.0 appears identical to the E-Fan apart from a fuselage stretch. To increase flight duration the E-Fan 4.0 will have a hybrid-electric system that will have a small engine to charge the battery, which will increase its duration from 2 hours to 3.5 hours. First flight of the E-Fan 2.0 is planned for 2014 and the E-Fan 4.0 should follow in 2019.[1] A ducted fan on the E-Fan The E-fan is of all-composite construction and is propelled by two ducted, variable-pitch fans spun by two electric motors totaling 60 kW of power. Ducting increases thrust while reducing noise, and having the fans mounted centrally provides better control. The motors moving the fans are powered by a series of 250-volt lithium-ion polymer batteries made by South Korean company Kokam. The batteries are mounted in the inboard section of the wings. They have enough power for one hour and take one hour to recharge. An onboard backup battery is available to make an emergency landing if power runs out while airborne. The E-fan's undercarriage consists of two retractable fore and aft wheels, with another two under the wings. Unusually for an aircraft, the wheels are powered by a 6 kW electric motor, which allows the plane to be taxied without the main motors, and are able to accelerate it to 60 km/h (37 mph; 32 kn) for takeoffs. Having the takeoff run performed by the undercarriage relieves some of the burden on the flight motors.[5] In December 2014 Airbus announced that DAHER-SOCATA will complete the design work on the aircraft and certify it. VoltAir, an Airbus subsidiary, developed the initial prototype and will work with Daher-Socata during the testing phase as the project manager.[6] At this point the aircraft became the VoltAir E-Fan.[1] On 30 April 2015 the company announced that the aircraft will be produced at Pau Pyrénées Airport, south-west France, at a new facility to be constructed in 2016, that will be near the DAHER-SOCATA plant at Tarbes. First deliveries are expected at the end of 2017 or early 2018.[7][8] Variants E-Fan Two-seat concept aircraft ad technology demonstrator, first flown March 2014.[1][9] E-Fan 2.0 Proposed all-electric two-seat production variant, to fly 2017.[1] E-Fan 4.0 Proposed hybrid-electric four-seat variant, to fly 2019; a kerosene fuelled generator will extend endurance from 2 hr to 3 hr 30 min.[1] E-Thrust Proposed 90-seat regional jet based on the principles of the E-Fan.[9] Specifications Data from Jane's All the World's Aircraft 2014/15[10] General characteristics Crew: two Length: 6.67 m (21 ft 11 in) Wingspan: 9.50 m (31 ft 2 in) Max takeoff weight: 550 kg (1,213 lb) Powerplant: 2 × Electric motor , 30 kW (40 hp) each via eight-blade ducted fans,each producing thrust of 0.75 kN (266 lb st) Performance Maximum speed: 220 km/h (137 mph; 119 kn) all performance figures estimated Cruising speed: 160 km/h (99 mph; 86 kn) Endurance: 60 min Lift-to-drag: 16:1[1] References Gunston, Bill (2015). Jane's All the World's Aircraft : development & production : 2015-16. IHS Global. pp. 410–11. ISBN 978-0-7106-3135-0. "Airbus commits to E-Fan Production". Retrieved 16 July 2014. O'Callaghan, Jonathan (2013-09-17). "Airbus unveils plans for battery-powered planes within the next 20 years". The daily Mail (online ed.). UK. Retrieved 2014-04-28. Bertorelli, Paul (2014-04-24). "Airbus Announces Electric Aircraft". Av Web. Retrieved 2014-04-28. "E-Fan electric aircraft makes first public flight", Giz mag, 30 April 2014. Kauh, Elaine (11 December 2014). "Daher-Socata To Develop Airbus E-Fan". AVweb. Retrieved 14 December 2014. "Airbus E-Fan To Be Built In Pau, France". AVweb. Retrieved 1 May 2015. "L'E-fan décollera de Pau". La Tribune (in French). 30 April 2015. Retrieved 4 May 2015. Reed Business Information Limited. "Airbus light aircraft initiative blazes trail to electric future". Jackson, Paul A. (2014). Jane's All the World's Aircraft : development & production : 2014-15. IHS Global. p. 335. ISBN 978-0-7106-3094-0. External links Wikimedia Commons has media related to Airbus E-Fan. Airbus Group E-Aircraft Day Airbus Group E-Fan Brochure |
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Electric plane at Paris Airshow
Larry Dighera wrote:
On Wed, 17 Jun 2015 04:28:34 +0000 (UTC), Skywise wrote: http://www.cnn.com/videos/tv/2015/06...e-fan-orig.cnn Brian Interesting. The Airbus E-Fan is intended for flight instruction. Would that be multiengine flight instruction? I predict it will rank right up there with the Lancer 402 in terms of success. -- Jim Pennino |
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Electric plane at Paris Airshow
george152 wrote:
On 18/06/2015 11:55 a.m., wrote: Larry Dighera wrote: On Wed, 17 Jun 2015 04:28:34 +0000 (UTC), Skywise wrote: http://www.cnn.com/videos/tv/2015/06...e-fan-orig.cnn Brian Interesting. The Airbus E-Fan is intended for flight instruction. Would that be multiengine flight instruction? I predict it will rank right up there with the Lancer 402 in terms of success. When they produce a machine that is a 4 seater and has a 4 hour endurance I'll look at electric powered aircraft but not before I would take any number of seats, 4 hour endurance, 30 minute recharge time, a guarantied 6 year battery life, and a battery replacement cost of less than $10,000. -- Jim Pennino |
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Electric plane at Paris Airshow
wrote in :
I would take any number of seats, 4 hour endurance, 30 minute recharge time, a guarantied 6 year battery life, and a battery replacement cost of less than $10,000. Battery life is going to be dictated by number of cycles, not time. And, I would imagine there would be a 'black box' recording battery use for warranty purposes. At least that's what I'd do if I were selling them. Brian -- http://www.earthwaves.org/forum/index.php - Earth Sciences discussion http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism Sed quis custodiet ipsos Custodes? |
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Electric plane at Paris Airshow
On 18/06/2015 4:21 p.m., Skywise wrote:
wrote in : I would take any number of seats, 4 hour endurance, 30 minute recharge time, a guarantied 6 year battery life, and a battery replacement cost of less than $10,000. Battery life is going to be dictated by number of cycles, not time. And, I would imagine there would be a 'black box' recording battery use for warranty purposes. At least that's what I'd do if I were selling them. Brian The current toy evidently 'cooked' a number of the onboard batteries during its 'record breaking' Japan-Hawaii leg |
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Electric plane at Paris Airshow
george152 wrote in news:wradneBQuZ6mgznInZ2dnUU7-
: On 18/06/2015 4:21 p.m., Skywise wrote: wrote in : I would take any number of seats, 4 hour endurance, 30 minute recharge time, a guarantied 6 year battery life, and a battery replacement cost of less than $10,000. Battery life is going to be dictated by number of cycles, not time. And, I would imagine there would be a 'black box' recording battery use for warranty purposes. At least that's what I'd do if I were selling them. Brian The current toy evidently 'cooked' a number of the onboard batteries during its 'record breaking' Japan-Hawaii leg My guess, based on my electric RC modelling experience, is that they were recharging them a little hot. Batteries usually can be discharged much faster than they can be recharged. But I admit that I don't even know off hand which battery technology they are using. I used lithium-polymers. Brian -- http://www.earthwaves.org/forum/index.php - Earth Sciences discussion http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism Sed quis custodiet ipsos Custodes? |
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Electric plane at Paris Airshow
On Tue, 14 Jul 2015 08:23:23 +1200, george152 wrote:
On 18/06/2015 4:21 p.m., Skywise wrote: wrote in : I would take any number of seats, 4 hour endurance, 30 minute recharge time, a guarantied 6 year battery life, and a battery replacement cost of less than $10,000. Battery life is going to be dictated by number of cycles, not time. And, I would imagine there would be a 'black box' recording battery use for warranty purposes. At least that's what I'd do if I were selling them. Brian The current toy evidently 'cooked' a number of the onboard batteries during its 'record breaking' Japan-Hawaii leg Indeed: http://www.solarimpulse.com/leg-8-from-Nagoya-to-Hawaii NO si2 flight BEFORE AUGUST Following the record-breaking oceanic flight of 5 days and 5 nights (117 hours and 52 minutes) in a solar-powered airplane, Solar Impulse will undergo maintenance repairs on the batteries due to damages brought about by overheating. Despite having completed the longest and most difficult leg of the Round the World Solar Flight, #Si2 has suffered battery damages due to overheating. During the first ascent on day one of the flight from Nagoya to Hawaii, the battery temperature increased too much due to over insulation. And while the Mission Team was monitoring this very closely during the mission leg, there was no way to decrease the temperature for the remaining duration of the flight as each daily cycle requires an ascend to 28’000 feet and descend for energy management issues. The damage to certain parts of the batteries is irreversible and will require repairs and replacements that will take several weeks to work through. In parallel, the Solar Impulse engineering team is looking at various options for better management of the cooling and heating process for very long flights. Solar Impulse does not see the possibility for any flights before 2-3 weeks at the earliest. ------------------------------------------------------------------------- However it would seem that at least two additional electrically powered historic aircraft flights have occurred: ------------------------------------------------------------------------ http://www.avweb.com/avwebflash/news/First-Electric-Powered-Channel-Flight-Was-34-Years-Ago-224415-1.html First Electric-Powered Channel Flight Was 34 Years Ago By Russ Niles As the public relations-spawned dissection of two flights over the English Channel by electric aircraft late last week got into finer and finer details, a big-picture perspective surfaced in the AVweb inbox. The first flight of an electric aircraft over the English Channel happened more than 30 years ago but it was overshadowed by perhaps an even greater earlier accomplishment by its creator. Two years after Paul MacCready's Gossamer Albatross crossed the channel under pedal power delivered by cyclist and pilot Bryan Allen, a solar-electric version of the aircraft made the crossing and then some. In fact, the Solar Challenger stayed in the air for five hours and 23 minutes and covered 163 miles on a flight from Pontois-Cormeilles Aerodrome, north of Paris, to RAF Manston in the U.K. That flight happened almost 34 years to the day (July 7, 1981) before the dust-up over bragging rights for the conquering of the Channel erupted between Airbus and two other cross-channel efforts. As we reported last week, Slovenia-based Pipistrel intended to fly the Channel from France to England and back nonstop in its Alpha Electro on July 7, three days before Airbus was planning a carefully orchestrated public relations effort to fly its e-Fan across the 22-mile strip of ocean. The Pipistrel flight was cancelled when motor supplier Siemens told Pipistrel it didn't want is motor used for the flight. Pipistrel made some PR hay of its own out of the Siemens decision but decided to stay on the ground. Then, on the night before Airbus's well-publicized and thoroughly organized effort, French pilot Hugues Duval did the flight in an electric-powered Cri-Cri. Airbus officials later said they didn't consider it on the same level of achievement because the Cri-Cri was air launched. And if we're nitpicking, the MacCready flight from 1981 wasn't the same, either. Airbus, the Cri-Cri and the Alpha Electro all use batteries to power the electric motors. The Solar Challenger didn't have any batteries at all. More than 16,000 solar cells provided the power. History will judge who "won" this competition. Did Duval Beat Airbus Across the Channel? By AVweb Staff http://www.avweb.com/avwebflash/news/Did-Duwal-Beat-Airbus-Across-the-Channel-224410-1.html Just as Airbus was completing plans for its successful crossing of the English Channel in an electric airplane Thursday, it appears as though it got beat to the punch by French pilot Hugues Duval flying an electric powered CRI-CRI Cristaline twin. Duval completed the flight Thursday evening, even though authorities attempted to block it, according to Pipistrel's Ivo Bocarol. Airbus completed the Channel crossing in its two-motor E-Fan early Friday morning, flying eastbound from the U.K. to France. Airbus was nearly trumped by Pipistrel's Alpha Electro, a single-engine airplane, but Siemens, which provides the Electro's engine, intervened and yanked support for the project. Duval's plans were evidently carried out in secret and he launched late Thursday evening. Bocarol said Duval had all the proper permits, but authorities tried to block his flight at the last minute for reasons that aren't clear. Duval went ahead with the crossing anyway. Airbus seemed to acknowledge the flight in its press release on the e-Fan's crossing, noting it was the "first all-electric two-engine aircraft" to make the hop. In a Telegraph report on Duval’s first, an Airbus spokeswoman said, "We applaud the intrepid aviator Hugues Duval for his flight in his Cri Cri. He plays in his own category. All efforts in electric flying support our goal to advance electric and hybrid flight. But, of course, in the first place we are extremely proud of our test pilot Didier Esteyne who just successfully crossed the Channel in our E-Fan." Duval is an aerobatic pilot who set an electric aircraft speed record with the Cri Cri, exceeding 175 mph and breaking his own previous record of 162 mph. --------------------------------------------------------------------------- http://www.airbusgroup.com/int/en/innovation-environment/airbus-e-fan-the-future-of-electric-aircraft.html Airbus Group all-electric E-Fan made the 74km crossing from Lydd, England to Calais, France in about 37 minutes. E-Fan's first flight above the sea Travelling in the opposite direction to the pioneering Frenchman and powered by lithium-ion batteries, the E-Fan took off from Lydd on the English south coast, completing the 74 kilometre flight east to Calais, France, in around 37 minutes. Flown by test pilot Didier Esteyne, the all-electric plane weighs around 600 kilogrammes and travelled at an altitude of about 1,000 metres [3,500 feet]. [Photo] E-Fan’s test pilot and designer Didier Esteyne (left) and Airbus Group Chief Technical Officer Jean Botti celebrate the successful crossing of the English Channel E-Fan's 'picture perfect' crossing: read all the details of the flight! While the E-Fan has already made more than 100 flights, preparations for this very special trip were extensive and included a dedicated test and verification programme put together by French flight authorities, Airbus Group and its partners. “That is something which may not have been necessary 100 years ago, when Blériot’s flight was just a race to be first. But today, following rules and obtaining certifications is of crucial importance for the future of safe, reliable and certifiable electric flight,” explains Jean Botti, Airbus Group Chief Technical Officer. The 10th of July 2015 will now join the list of famous days in aviation history, and I’m sure Blériot would be proud of this achievement Jean Botti Airbus Group Chief Technical Officer Airbus Group E-Fan at Calais-Dunkerque Airport after completing historic Channel crossing ----------------------------------------------------------------------------- http://www.telegraph.co.uk/finance/newsbysector/industry/engineering/11729838/Airbus-E-Fan-2.0-set-to-recreate-aviation-history-with-cross-Channel-flight-only-this-time-its-electric.html French pilot in tiny one-seater beats Airbus to first electric cross-Channel flight BATTLE OF THE SKIES: Noted stunt pilot Hugues Duval made history after crossing the English Channel in an electric aircraft - hours ahead of an attempt by aviation giant Airbus By Alan Tovey, and Jon Yeomans 10:05AM BST 10 Jul 2015 A French pilot in a tiny one-seater plane has beaten aviation giant Airbus in the race to fly an electric-powered plane across the English Channel, pipping them to the post by a matter of hours. In a contest calling to mind the early days of aviation, Hugues Duval flew from Calais, France to England and back in a Cri Cri plane on Thursday night, hours before Airbus' planned flight of the E-Fan 2.0 prototype in the opposite direction. Duval told The Associated Press that his successful flight was a "relief" and an "important moment" after years of developing the plane and flying it over land. It subsequently emerged that Duval's Cri Cri had had a little help getting airborne, taking off attached to another plane before then detaching. Video: https://youtu.be/rkEHIv1o7u8. Duval is a noted stunt pilot in an aerobatic flight group called Tranchant, based at Rennes St Jacques Airport in France. He set a new speed record for an electric-powered plane in 2011, also in a Cri Cri plane. Designed in the 1970s, the Cri Cri is the smallest twin-engine plane in the world. Airbus' plane, meanwhile, took off from Lydd airport in Kent on Friday morning before successfully landing in Calais 45 minutes later. It used batteries instead of conventional fuel to power its twin motors on the 42-mile flight. "We applaud the intrepid aviator Hugues Duval for his flight in his Cri Cri," said an Airbus spokeswoman. "He plays in his own category. All efforts in electric flying support our goal to advance electric and hybrid flight. But, of course, in the first place we are extremely proud of our test pilot Didier Esteyne who just successfully crossed the Channel in our E-Fan." The rival teams were seeking to recreate Louis Bleriot’s pioneering flight in 1909, when the French aviator became the first person to cross the Channel in a heavier-than-air machine. Airbus developed its aeroplane to investigate the feasibility of using electricity to power aircraft. Electricity produces no polluting exhaust and is far quieter than traditional forms of propulsion. The E-Fan has already wowed crowds at the Farnborough and Paris airshows with its near-silent air displays. Another attempt to cross the Channel in an electric plane by Slovenian company Pipistrel in its Alpha Electro propeller plane was called off earlier this week after motor engine supplier Siemens prohibited the use of its technology in a flight above water. "We deeply regret the action of Siemens which prevented the flight - especially because it would be Siemens that would have enabled the flight, being that our aircraft used a Siemens electric motor. This is why we find this decision even more bizarre and incomprehensible," said Ivo Boscarol, Pipistrel general manager. However Siemens denied it had pulled the plug on Pipistrel’s cross-Channel attempt at the behest of Airbus. Although Siemens does not supply the engine for the E-Fan, it has stickers on the plane. Zero emissions Jean Botti, Airbus’s chief technical officer, said the aircraft flew like a "conventional aircraft of its size". "It is very reliable and some of the big advantages are its zero emissions, almost noiseless flight and cost effectiveness," said Mr Botti. The E-Fan has so far completed more than 100 flights. The two-seat E-Fan weighs just 550kg when empty and has a maximum speed of almost 120 knots – about 138mph – though it cruises at about 100mph. It has a wingspan of 31ft, is almost 22ft long, and stands more than 6ft high. Its 120-cell lithium-polymer battery system – which shares the same high-capacity, low-weight characteristics as those used in mobile phones – can power the aircraft’s twin-ducted fans for between 45 minutes and an hour, depending on the amount of power the pilot uses. The twin electric motors that power the over-wing mounted fans have a maximum power output of 60 kilowatts. Airbus has so far invested €20m in developing the technology and hopes to introduce a production model of the E-Fan in 2017 or 2018. It has plans for a four-seat version. Early customers for the aircraft are expected to be flight schools, as the aeroplane’s limited endurance is unlikely to be tested by student pilots venturing far from their home airfield, and its near-silent noise will not affect nearby residents. However as the technology progresses the E-Fan could attract a wider customer base. Airbus hopes it will eventually make it into small airliners and helicopters, though it could be decades before this becomes a reality. It is thought the military could also find uses for electric aircraft, as their quiet motors would be unlikely to alert the enemy. -------------------------------------------------------------------------- http://www.wired.com/2011/07/electric-airplane-pilot-breaks-own-speed-record/ Jason Paur Gear Date of Publication: 07.01.11. 07.01.11 Time of Publication: 8:00 am. 8:00 am Electric Airplane Pilot Breaks Own Speed Record French pilot Hugues Duval broke his own speed record for electric aircraft after topping 175 mph. He made the record-setting flight in the same twin-engine Cri Cri airplane he flew to achieve his previous record of 162 mph in December. He completed the flight during the Paris Air Show after a full week of demonstration flights. The tiny Cri Cri has a wingspan of a bit more than 16 feet. Powered by a pair of 35-horsepower electric motors and a pair of batteries totaling 3 kilowatt-hours (and 24 kilograms), the electric Cri Cri can fly for about 25 minutes at 65 mph. With much of the attention in the electric airplane community focused on range rather than speed, speed records are few and far between. But with four successful electric-airplane designs flying in four different countries, the fledgling industry hints back to the early days of aviation when competition drove improvements in all aspects of performance. The CAFE Green Flight Challenge originally scheduled for later this month has been postponed for later in the summer. The competition is open to both electric and internal-combustion-powered aircraft, though this year everyone expects a strong contingent of electric aircraft. The challenge includes speed and range, with the task to fly a 200-mile course in less than two hours using the energy equivalent of one gallon of gasoline per occupant. These aren’t quite the same speeds of the Schneider Trophy, but sure to spur innovation in a similar way. Watch video from French TV of the record-setting flight. Photo: Electravia ------------------------------------------------------------------------- |
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Electric plane at Paris Airshow
On Tue, 14 Jul 2015 08:23:23 +1200, george152 wrote:
The current toy evidently 'cooked' a number of the onboard batteries during its 'record breaking' Japan-Hawaii leg Apparently the battery damage is worse than originally thought. I recall some issues with the Li-ion batteries in early production Boeing Dreamliners and Tesla cars. It's all part of the learning curve I suppose. I'm unaware of an subsequent battery issues with those products. Here's the latest update from Solar Impulse: ------------------------------------------------------------------------------- Subject: RTW update 23 - BREAKING NEWS - No #Si2 flights before 2016 From: Solar Impulse Date: Wed, 15 Jul 2015 11:13:11 +0000 SOLAR IMPULSE RTW UPDATE #23 ------------------------------------------------------------ NO flight BEFORE 2016 IRREVERSIBLE DAMAGE TO OVERHEATED BATTERIES IN SI2 PUSHES THE SECOND HALF OF ROUND-THE-WORLD SOLAR FLIGHT TO EARLY SPRING 2016. Despite the hard work of the team to repair the batteries which overheated in the record breaking oceanic flight from Nagoya to Hawaii, Si2 will stay in Hawaii until early Spring 2016. During the first ascent on day one of the record-breaking oceanic flight from Nagoya to Hawaii, the battery temperature increased too much due to over insulation of the gondolas. And while the Mission team was monitoring this very closely during the mission leg, there was no way to decrease the temperature for the remaining duration of the flight as each daily cycle requires an ascend to 28’000 feet and descend for energy management issues. Irreversible damage to certain parts of the batteries will require repairs which will last several months. In parallel, we will be studying various options for better cooling and heating processes for very long flights. The University of Hawaii with the support of the Department of Transportation will host the airplane in its hanger at Kalaeloa airport. Post maintenance check flights will start in 2016 to test the new battery heating and cooling systems. |
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