Even aboard business airplanes, there are
people who simply don’t like the bumps that often accompany flying. Some
passengers tell operators many of the pets flying along these days don’t like
the bumps either. Bombardier believes a smooth ride is an important benefit to
be had in the right aircraft. The company created a small wing-ride
demonstration for trade shows that they demonstrated for Flying yesterday
at Las Vegas Henderson Field. The Canadian aircraft builder wanted the demo to
show customers why a smooth ride aloft in
the Global family of airplanes is more than a
marketing slogan.
Melissa Giannangelo, a
mechanical engineer by education, but now a sales engineer for Bombardier,
explained how the demo came to be. “Customers told us our Global aircraft
offered a really smooth flight, even in turbulence. That’s attributed to our
wing design,” she said. Bombardier created a wing flexing demonstration since
flex is directly tied to the ride.
Giannangelo began by
detailing the importance of wing loading to the ride. Loading measures the
relationship of wing size to the weight of the airplane. The smaller the wing
relative to the aircraft translates into less wing area exposed to turbulence
and hence a smoother ride.
“Some competitor aircraft
have about 25 percent more wing area than the Global 6000, for instance,” she
said. “That means more opportunity to get bounced around.”
The other important
ingredient of a smooth ride is of course the flexibility of the wing. A close
look at the wing root on the Global 6000/7000, reveals the chord is
smaller than some competitors. “That makes the wing long and slender offering
more flex. More flex is good.” Giannangelo used the analogy of a car with stiff
springs to make her point. The more bounce the springs absorb the smoother the
ride. A stiffer wing produces a stiffer ride.” The Challengers were also built
with high wing loading.
The Bombardier wing flex
test meant trying to actually bend the wing at the tip while a meter recorded
my efforts. It was much tougher than I’d first thought it might be. All I could
muster at the show was about a foot and a half of flex. “During development of
the wing at Bombardier, it was flexed over seven feet, Giannangelo said.
(Evangle Luo of TTFLY shared with you)
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