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Ref Two questions though, what's the benifit of the under camber? I understand that the standard teaching about different leangths of travel on different side of a wing isn't entirely correct, but wouldn't an under camber make the top and bottom almost the same length and thus negate any effect of t...

this year's rules limit the wingspan to 30 cm. There is no fuselage or chord limit. There is a 10g max wt and the nose has to be larger than 13.7 mm. Lots more rules. My thought is that a multi wing model would not survive the launch. Also it will weigh a lot more and weight is a killer for this ev...

I have read the old rules to which a link was given in the Helicopter - Future Aviation Events forum. I gather that the length and wingspan are both limited to 30 cm. Further, in the AMA website there was a reference to the wing chord being limited to 3 inches. Now I have two questions for the rule ...

For the stuff I build, just balsa (CAREFULLY selected) and very thin mylar film. The planes I'm referencing are called Ministicks (7 inch span, capable of flying 15 minutes or so) and EZBs (12 inch span, capable of flying 20 to 25 minutes). See http://www.indoorduration.com/ and dig around the site...

Last year I started the students out with a thin coat of diluted Ambroid and then a coat of slightly diluted. Put on with a brush. It did not add much weight. It was superbly strong. Time was killing us, so we switched to the mixed CA glue. It takes a while for new model builders to figure out how ...

PVA has its place, but if for outdoor or wet, you need the weather resistant formulations from hardware stores/big box home centers like titebond II or III. Note, I'm an indoor flyer where the whole plane might weight less than half a gram and .001 grams can be important, so I don't normally use CA...

I tried 3M's high strength 90. Too thick! save your money. I like 77. Consider this as spray paint. When you are done, invert the can and spray for 2 seconds. (OUTSIDE) I really like Titebond III for balsa "butt joints". It slow to set but extremely strong, so do not use any more than is ...

I find that CA dissolves Styrofoam. What is a good glue for Styrofoam ? Styrofoam safe CA, of course. Seriously, there is such stuff. Also known as odorless CA for those of us who've developed sensitivity to CA. Might be overkill for some projects, but it is fast. Oh, and what kind of CA are you us...

Sounds like time for my annual lecture on glue. If you are having problems with glue on your fingers, especially super glue, YOU ARE USING TOO MUCH! If you must use from a bottle, make sure you use one of those with a VERY thin tip that lets out very small drops. Better still, use a precision micro...

_HenryHscioly_ wrote:http://www.youtube.com/watch?v=AD9juUWL5iU#t=2m0s

very cool, but i dont think it'll be any good for this event
haha

OK, now I've seen a one bladed helicopter.