mandag 13. juli 2015

Krangel om første flyging over kanalen bør stilne nå







 

 

 
 
 
 
 

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.








 

 

 
 
 
 
 
 
 
 
 
 
 
 


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 aTelegraph 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.

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