AFAIK, the plank version of the 9C has all the heli software in place; just some of the switch positions are different. Shouldn't pose any problems at all.

As to which to get, a 30 or a 50, that's an interesting question. Too many guys are quick to recommend the larger machine, because "the power ROX, dude!". Well, a beginner doesn't need all that power, and certainly doesn't need the added complexity/cost of the larger machine. The argument about it is cheaper in the long run to get the bigger machine at first, as opposed to upgrading later, doesn't always hold water.

However, in the case of an experienced planker such as yourself, it does make more sense. The big problem is power plant related; the engine of choice for this size machine, the OS 50 SX-H, has had some serious issues regarding its rear bearing; plus it is a downright fuel hog. Used with a standard 30-size tank, some folks have been lucky to get 5-6 minute flights. When I saw a photo of the prototype engine, with that 10mm carb throat, I knew it was going to suck fuel like crazy. But the popular desire is ever more power, and OS is trying to oblige. The engine does exactly what it was designed to do; aside from the short rear bearing life...[&o]

Basically, you can either go with a 50 machine, with the attendant higher costs and risk that your OS 50 will have problems; or go with the long-proven OS 32 SX-H and a 30 size basic trainer. I'll say this; if you harbor ANY desire to do the "3D" thrashing about that is so popular, down the road after you become competent, then roll the dice and get the 50. The 32 simply doesn't have enough grunt for that.

And before you ask, I would avoid any other engines. The TT 36 and 39 both are stronger than than the OS; and that comes at a price. No doubt some folks will say they have been running theirs with no problems, etc., etc. They are indeed fortunate. Don't take my word for it; just do a search and see how many threads you come up with on problems with TT 36/39 heli engines as opposed to the OS 32 SX-H. The latter engine has long been the bench-mark of comparison.

Good luck. There is no rocket science involved here, but you are doing the right thing by conducting some research before buying.

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