Radical RC Stick 400 Build Thread~~~Now with Video
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Apr 03, 2011
, 02:44 AM
Joined Jun 2002
Now slip the lined up tail ribs into the correct spots on the spar. Excercise a little caution here, it is balsa wood after all. They will be a snug fit and if you have to pinch the tips a little, thats fine. For the most part, all of these balsa connections are very tight and snug and thats good. If you run into a situation where its so tight it feels like its going to snap, hold off. You may have to sand it slightly and thats ok.
For our model here I didnt have to do that even once but your results may vary. The ribs should slip in nicely.
Also note the holes in the spar are off center and will only accept the ribes correctly one way. This detail ensures you have the ribs correctly lined up. Sight down the spar when you are finished, if any are above or below the spar, they are probably not in correct. Reverse it and see if that helps.
Hold off on glueing for now.
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Start in the center and work your way sliding the ribs in place.
Note the ply doubler placement on the outside of center rib.
Notice how not ALL holes in the spar get a tail rib. I made a small mark near the holes to make it easier for me.
The rib closest to my thumb is upside down. It sticks above the spar and its clear to see on the tail.
Note the ply rib doublers in the center
Ready for the TE. Beautiful laser cutting design.
This rib is intentionally upside down. This should alert you theres a problem.
The upside down (WRONG) rib sticks up above the spar.
Ribs in the spar.
Ribs lined up in correct sequence
Ribs and spar.
Wiggling the center ribs in palce.
Slide the rib in.
All the way to the end.
Ribs lined up and in spar slots.
Make sure the tail ribs seat well against the TE.
Note how I sanded the ply flush to the balsa on the TE. Also note the ribs sit nice against the TE.
Last edited by Carnifax; Apr 06, 2011 at