X-21 v-tail - Introduction
Model made for flying in the F3B, F3F and F3J categories. The model is made in fullcarbon version, which can withstand more stress. The F3J version of the model is lighter. The flying performance suits beginner F3x pilots also.
end production
X-21 v-tail - Details
| Category: | F3B,F3F,F3J |
| Conception: | Two part wing, two part elevator, V-tail |
| Wing span: | 3200 mm |
| Length: | 1540 mm |
| Wing area: | 60,4 dm2 |
| Elevator area: | 6,2 dm2 |
| Wing airfoil: | MH 32 mod |
| Elevator airfoil: | SD8025 |
| Weight: | from 2100 g as F3J |
| Ballast: | 1600g |
| Maximum servo width: | wingr: 13 mm ,fuselage: 15 mm |
| Construction: | |
| Wing | glass-balsa-glass, carbon-herex-glass or carbon-herex-carbon |
| Spar | UMS Carbon |
| Tailplane | glass-balsa-glass |
| Fuselage | carbon-glass |
Drawing
X-21 v-tail - Settings
Settings table for Eagle
| Trim positions | Flaps | Ailreons | Elevator | Rudder | ||
| Normal | 0 | 0 | 1 | 0 | ||
| Termik | 2 | in line with flap | 0,5 | 0 | ||
| Speed | 2 | in line with flap | 1 | 0 | ||
| Start | 12 | 3 | 0 | 0 | ||
| Butterfly | max down | 5 | 3 | 0 | ||
| Deflections | Flaps | Ailreons | Elevator | Rudder | ||
| Normal | 0 | 9/4,5 (on tip) |
5/6 | 7/8 (on tip) |
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| Termic | 0 | 6/4 | 5/6 | 7/8 (on tip) |
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| Speed | 50%/50% (% of ailreon) |
13/5 (on tip) |
5/6 | 0/0 | ||
| Start | 0 | 8/4 (on tip) |
7/8 | 8/9 | ||
| Butterfly | 0 | 9/4,5 (on tip) |
5/6 | 7/8 | ||
| Towhook: 128 mm from end of cabin. | ||||||
| Center of gravity: from the leading edge 101-103 mm | ||||||
| up deflection/down deflection | ||||||
X-21 v-tail - Pictures
Model and details
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X-21 x-tail - Reference
More info and pictures:
http://rc-sailplane.com/X21/X21_e.htm
http://rc-sailplane.com/X21/gallery/x21_gallery_e.htm
http://www.f3x.com/htdocs/X21/x21f3b.htm
http://www.f3x.com/htdocs/X21/x21web/index.htm
X-21 x-tail - Prices
Pricelist, model versions and order
| Model version | ||
| X-21 v-tail | Price | Note |
| GFK | 820,- | GFK- glass version |
| CFK | 930,- | CFK- carbon version |
| double-carbon | 1060,- | Carbon - most robust carbon version (carbon-herex-carbon). |
| X-21 x-tail | ||
| GFK | 840,- | GFK- glass version |
| CFK | 950,- | CFK- carbon version |
| double-carbon | 1070,- | Carbon - most robust carbon version (carbon-herex-carbon). |
| X-21 GFK model parts | ||
| fuselage | 160,- | |
| wing | 570,- | |
| v-tail | 95,- | |
| CFK joiner | 35,- | |
| X-21 CFK model parts | ||
| fuselage | 170,- | |
| wing | 670,- | |
| v-tail | 95,- | |
| CFK joiner | 35,- | |
| All prices are in Euro and valid for 2009, excluding transport and tax. To order, using e-mail adress: jitom@jitom.com | ||
