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Monday, December 14, 2009

I finished the assembly of the Thyphoon as the weather was not good enough to fly. It took a little more time than usual because of some surprises:
Both the aileron and the flap horns made from epoxy plate and that come already installed are not at the correct height. The consequence is that a metal clevis cannot move freely, even after some sanding. I decided to changed the horn, finally swapped them with brass horns I had in stock. Apparently, according to the UK forum, I’m not the only typhoon owner having this issue. Of course this is not a big deal, but it’s still frustrating.

The second surprise came from the balancing. I was aware that the plane would need lots of lead to obtain the right CG, but not so much ! I needed 210 grams to obtain a CG around 86 mm. I had to change the layout and put the battery under the receiver, and clear the maximum of space for the nose lead. I suppressed the switch and use JST plugs instead.

The receiver is finally an Assan 2.4 Ghz. It is install on a piece of white hard foam that allow to maintain it far enough from the battery, and insert the 2 small antennas in the foam to optimize their position and optimize the reception.

The final weight is 1620 gr.

I also sanded a little bit the wing joiner to ease the mounting.

You will fine all the pictures of the assembling here: picasa album

The plane is now ready to fly !


Manufacturer website: RCRCM
Distributor for France : http://www.wittnaircomposite.com/

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