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Gypsy

[table=80%][tr][td][b]Horsepower:[/b][/td][td=3,1]20 hp[/td][/tr][tr][td][b]Fuel Capacity:[/b][/td][td]5 gal[/td][td]19 l[/td][/tr][tr][td][b]Range:[/b][/td][td]175 nm[/td][td]324 km[/td][td]201 mi[/td][/tr][tr][td][b]Top Speed:[/b][/td][td]48 kts[/td][td]89 kmh[/td][td]55 mph[/td][/tr][tr][td][b]Cruise:[/b][/td][td]35 kts[/td][td]65 kmh[/td][td]40 mph[/td][/tr][tr][td][b]Stall:[/b][/td][td]19 kts[/td][td]35 kmh[/td][td]22 mph[/td][/tr][tr][td][b]Climb:[/b][/td][td]600 ft/min[/td][td=2,1]3 m/sec[/td][/tr][tr][td][b]Takeoff Distance:[/b][/td][td]75 ft[/td][td]23 m[/td][/tr][tr][td][b]Landing Distance:[/b][/td][td]50 ft[/td][td]15 m[/td][/tr][tr][td][b]Gross Weight:[/b][/td][td]475 lbs[/td][td]215 kg[/td][/tr][tr][td][b]Empty Weight:[/b][/td][td]225 lbs[/td][td]102 kg[/td][/tr][tr][td][b]Useful Load:[/b][/td][td]250 lbs[/td][td]113 kg[/td][/tr][tr][td][b]Seats:[/b][/td][td=2,1]1[/td][/tr][/table]

现在依然喜欢这款飞机，简单，古典，漂亮。flo.gif

flo.gifflo.gifflo.gif

漂亮!smile0.gif

小巧玲珑

结构简单，却很实用．

模型发动机吧?

与 E-12N 有相似之处.

模型发动机吧?

失速速度和起降距离都不错。
1：如果坐舱不封闭，是否可以？
2：坐舱用玻璃钢布手工糊制一个

Gypsy ultralight  introduction website:

[url]http://www.buyplanesforsale.com/ultralight_aircraft_for_sale/vula_gypsy/649/[/url]

[url]http://www.buyplanesforsale.com/ultralight_aircraft_for_sale/vula_gypsy/649/[/url]

smile0.gif

现在再看一看, 感觉设计的很舒服.

/===========================================
晚上睡不着就YY一下.

小布丁，如果希望制造一架成本不高的东东，这个可以考虑。

[b]Take off distance over 50ft (15m) obstacle:[/b] 100 ft | 30 m
[b]Landing distance over 50ft (15m) obstacle:[/b] 35 ft | 11 m

[b]Max. take off weight:[/b] 249 kg | 550 lbs
[b]Empty weight:[/b] 111 kg | 245 lbs

[b]Engine:[/b] Hirth F-31
[b]Fuel consumption:[/b] 2gph

[b]Other aircraft information:[/b]
For more information about this little ultralight aircraft visit [url]http://vula.org[/url]

[b]Price:[/b] 6000 USD
[url=http://www.pilotmix.com/index.php?pgid=11&lang=en&maxInfo=863]http://www.pilotmix.com/index.php?pgid=11&lang=en&maxInfo=863[/url]

[[i] 本帖最后由 航模钢琴 于 2008-10-28 14:25 编辑 [/i]]

The Gypsy is in the peculiar position of mostly being described on the internet in pictures. No one has anything bad to say about it, and it's certainly cute as a button. It was the subject of an article in Popular Mechanix back in the day.

You can get plans for the Gypsy from the Vintage Ultralight Association, who also provide plans for several other homebuilt ultralights. It was designed by John Chotia in the late 70's / early 80's, and has only recently become available again.
(图纸的获取： Vintage Ultralight Association)

The Gypsy is a refinement of an older design, the Woodhopper. The flying qualities of these planes suit the type of person who simply wants to get into the air and not go anywhere particularly fast. All the wires make these planes quite draggy and slow. It looks like maximum speed is in the 45mph range. Of course the stall speed is rediculously slow...  Gypsy对古典设计的木质飞机的一种精炼，飞行特征适合那些只想简单地飞上蓝天，而不是驾机周游世界的人的需要

[[i] 本帖最后由 航模钢琴 于 2008-11-29 13:57 编辑 [/i]]

EAA chapter 292 built one as a chapter project a few years ago off a set of
factory prints. It flew with a Chotia 460 engine. It flew amazing good but
had very slow aileron response due in part to the 5 degrees of dihedral and
the way they were rigged in the original design. There were pictures of it
in Sport Aviation I believe the August edition. If I were to do it again I
would change the wing rigging and the way the ailerons are actuated. The
aircraft will have a cruise of 45+ with no problem and the stall speed is
below 25 mph. We installed brakes and had a airspeed and fuel gauge for
instruments and had and all up weight of 238 lbs. The big wing on this craft
was the secret of its success making it able to fly with such a small engine
and 42 inch prop. Takeoff was about 100 feet and landings about the same.
Climb was the limiting factor because of engine and prop combination. I
personally would not put a large engine on this plane without replacing the
fuselage tube to 3inches to take the place of the 2 1/2 inch one. For
further info see our web site for EAA 292 in Independence Or.