Caudron C635 Simoun (oz1431)

About this Plan

Caudron C635 Simoun. Free flight rubber model.

Quote: "Rubber scale is perhaps the hardest fought event at the Nats. This ship won in 1980

This model should not be considered a beginner's project due mainly to the scale detailing required, but construction is straightforward and a relatively inexperienced builder should be able to achieve a good flying aircraft. It is designed from the start with AMA outdoor scale rules in mind. For those who fly mostly FAG rules, you will find the Caudron lacking in sufficient handicap points for serious competition. The moments are good, the size is large enough to be less touchy in trimming, and there is plenty of room for a fully wound rubber motor. The landing gear is well placed for good takeoffs and allows a rugged mounting design.

The only changes I make from scale, are to enlarge the stab a few percent, double the dihedral angle, and lengthen the landing gear just a trifle. The prototype flies very stably and may even work with everything to scale, although you're on your own here since I haven't tried anything but what's shown.

There is one factor which should be kept upper most in your mind while building and that is: lightness. You won't need to use anything but the four to six pound per cubic foot balsa. Don't add a harder piece here or there for more strength; this design will be strong enough if you use the lightest of material..."

Update 27/05/2016: article pages, text & pics added, thanks to RFJ.

Supplementary file notes

Article pages, text & pics.

Corrections?

Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction