These files are large, so be patient during the download. Please read the readme.txt included in the ZIP
he "Bubble Dancer" RES glider is essentially a big brother of the Allegro-Lite, with a 120" span and 1000 in^2 wing area. The idea was to combine the composite Allegro's layout, some new thin airfoils, and a bit of off-the-shelf carbon. The object was to make a big first-class thermalling ship which could also tolerate wind and strong winching and that anyone could build. The target category was the increasingly popular RES class. Blaine Rawdon and Bill Watson also took part in the design, and the Allegro-Lite wood wing 2m glider was a prototype for this glider.
The design was optimized for ease of construction , resulting in a rather unique glider. At about 31 oz (880 gr) , it has a very low sink rate -- about 0.8 ft/s. A very big 2" x 36" spoiler gives good landing control like on the AL, and it can be seen thermalling very often from hand tosses.
FrSky X20
FrSky XE
PNG (300x280)
BMP Recommended (300x280)
FrSky X18
FrSky Twin
PNG (180x166)
BMP Recommended (180x166)
FrSky X10
FrSky X12s
PNG (180x160)
BMP Recommended (180x160)
PNG (192x114)
FrSky X9D
FrSky X9E
BMP (64x32)
JPG (155x100)
Some content in menu 2.
More information on
https://www.charlesriverrc.org/articles/bubbledancer/markdrela-bubbledancer-3m.htm or http://aviatorstudio.net/bdwithjig/bdw_intro.html
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