查看完整版本: 这个X-14也经典

这个X-14也经典

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好图，有更多图片和资料数据吗？flo.gif

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From From Russia With Wings ussia With Wings
BY TIMOTHY R. GAFFNEY – From Popular Science, January, 1993
Originally constructed and flown in defiance of orders from the KGB, Victor Dmitriev's sophisticated
ultralight-aircraft-in-a-suitcase now could be on its way to becoming the hottest new innovation in miniaircraft.
Dmitriev, in partnership with Rienk Ayers of Santa Barbara, Calif, plans to sell the ultralight in kit
form.
Try to imagine doing what Victor Dmitriev has done: Driving down a rural road, you get the itch
to fly. Scratching the itch is simple — just pull over and unload a large container from the roof of
your car. Inside are all the components of a miniature single-place aircraft.
Bolt together the tubular framework, unfold and attach the wings and tail, and in 15 minutes
you're ready. A few spins of the two-blade propeller fires up the two-cycle engine. Pull on your
helmet, strap into the tiny open-air seat, and aim the craft down the road. Now twist the right
handle grip like a motorcycle throttle; the engine's buzz becomes a loud rasp, and you hurtle
forward, gaining speed. As the craft reaches 34 mph, pull back gently on the control column. The
ground drops away. You're flying.
Now imagine doing it the way Dmitriev had done it for years: sneaking out at night, the aircraft
sections concealed in tarps, driving far into the countryside for a brief flight—all the time fearing
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Flights of fancy: Victor Dmitriev hoists his 110-pound airplane
From From Russia With Wings ussia With Wings
BY TIMOTHY R. GAFFNEY – From Popular Science, January, 1993
that someone would see you and report your activities to the KGB.
Forty-seven-year-old Victor
Dmitriev was a teacher, truck
driver, and aviation
enthusiast in what was once
the Soviet Union (sometimes
referred to as Russia), where
building and flying airplanes
could get you put in jail. He
pored over every bit of
available information on
American sport planes and
taught himself how to design
aircraft when the Soviet state
considered such knowledge
secret. Over the course of 24 years he built 30 aircraft, scrounging materials from the trash, now
and then buying real aircraft parts through an illegal underground network. He modified a
Czechoslovakian motorcycle engine for an airplane power plant. His design studio, assembly
plant, and hangar were all located in the four-room apartment his family shared with two others
in Beshckek (formerly Frunze) in Kirghizia, a Minnesota-size republic wedged between
Kazakhstan and China.
Only glasnost, perestroika, and finally the collapse of
the Soviet government allowed Victor's amazing story
of innovation, commitment, and daring to emerge: His
one-of-a-kind aircraft has begun to draw attention in
America's sport-aviation community, and an ultralight
kit based on his design is already being offered for
sale.
When we visited him last July, he was sweating over
the latest version of his machine — what he calls the
X-14d — in a large steel hangar at Lodi Airport, a
small airfield south of Sacramento, Calif. At the time,
his biggest technical hurdle appeared to be matching
his airframe design with an inexpensive and readily
available engine. He had replaced his old engine with
a power plant commonly used in conventional
ultralights, but it proved too heavy and underpowered for his tiny-winged craft.
"Here, I only fly a little, because this plane needs 40, 50 horsepower," he said in halting English.
He gestured to the new motor bolted to his airframe. "This, 24 horsepower."
He admitted it achieved only a brief hop off the runway in California. On the other hand, his
original engine had a nasty tendency to quit in mid-flight; steel tubes holding the main wheels
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From From Russia With Wings ussia With Wings
BY TIMOTHY R. GAFFNEY – From Popular Science, January, 1993
bear the scars of repeated welding, evidence of many hard landings. Unable to demonstrate its
airworthiness for us, the best evidence of the plane's potential is found in the photos and films of
flights he had made in Kirghizia.
What makes the X-14d different from other
ultralights? Evolved from hang gliders, most
ultralights have large, sail-like wings that allow a
pilot to fly low and slow. A few are miniature
airplanes, complete with enclosed cockpits and
fuselages, considered ultralights only because
they meet the federal aviation requirements:
weight not more than 254 pounds (not counting
floats or emergency parachutes), fuel capacity
not more than five gallons, a maximum level
speed of 63 mph, and a stall speed — the speed
at which an aircraft loses the ability to fly — of
27 mph. The allure of the ultralight is obvious:
An ultralight flier isn't required to hold a pilot's
license or meet rigorous FAA requirements for
expensive scheduled inspections and maintenance.
Dmitriev's airplane is neither an outgrowth of a hang
glider nor an en-closed-cockpit design. First, it's
incredibly tiny — only 10.9 feet long, 16.4 feet in
wingspan, and four feet high at the tail. Its wing area is
only 18.9 square feet. It's light, even by ultralight
standards — 110 pounds, as Dmitriev had it outfitted in
July. Compare this with a typical well-known ultralight,
the Quicksilver MX Sport, produced by Quicksilver
Enterprises of Temecula, Calif. Quicksilver's model is
18.1 feet long, 28 feet in wingspan and 8.1 feet high.
Its wing area totals 156 square feet, and its empty
weight just brushes the 254-pound weight maximum.
But Dmitriev's diminutive craft is most striking in its use
of big-airplane features to get maximum performance
from its flying surfaces. Its wing has airliner-style flaps and leading-edge slats, giving it more lift
and thereby reducing takeoff and landing speeds. A slight but noticeable forward sweep to the
wing makes it more controllable at low speeds. And extra joints in the elevators and rudder
increase the effectiveness of their small surfaces.
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From From Russia With Wings ussia With Wings
BY TIMOTHY R. GAFFNEY – From Popular Science, January, 1993
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From From Russia With Wings ussia With Wings
BY TIMOTHY R. GAFFNEY – From Popular Science, January, 1993
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看第一眼图纸，马上发现设计师简直太聪明啦，做了一点前掠翼，就把驾驶员放在重心位置了。这样不管驾驶员体重多少都不影响飞机的重心。牛啊smile0.gif
英文待我慢慢看来！

我也跟一张

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这里可以看到机翼前部的细节

这样的飞机一定花不了几个钱吧。安全性如何？

这个可是真帅， 不过飞行员会不会觉得自己是在骑着个飞天扫帚？？

机翼面积2平方米，负后掠形。重40KG，时速130KM/H，耗油3-4升/时。

看来又是俄国人的设计smile14.gif smile14.gif

这个速度对业余飞行员的驾驶技术是一个挑战！
－－－－－－－－－－－
时速130KM/H

我一直在寻找这个飞机,总算是在这里找到了

真是小的不能再小了smile0.gif

真是小的不能再小了smile0.gif

130km只最高时速.失速速度好象在50-60KM左右.

这个飞机设计的太牛了!!!!!

   超级攒!!!     

             不过我体重太大 不适合呀!

smile01.gif smile01.gif 一句话“好精致哦”smile0.gif

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有人顶帖就再上两张smile01.gif