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Posted by Richard_s | Jun 21, 2011 @ 05:36 PM | 3,144 Views
My first multirotor... 120g w/o battery. No maiden yet, just first jumps on the bed .
Posted by Richard_s | Feb 11, 2011 @ 02:12 PM | 2,601 Views
Inspired by BYOB, I built this small bipe. Sorry for the empty airframe, I switch the gears between more airplanes. Currently in mini - delta.

scratchbuilt foam bipe (1 min 43 sec)

Posted by Richard_s | Jan 20, 2011 @ 02:41 AM | 2,929 Views
- OR - Scale effect quatnification?

I wonder, if two airplanes of same wing loading and planform would perform equally, if one was several (1, 2, ...5,...) times larger than the other. Let's drop possible inaccuracies in airfoils & building process etc. Will they glide the same? What about stall speed? How does speed and drag scale with airplane size? How much could one scale down an airplane and keep its properties? There are lots of variables involved, like ari density, relative "air molecule size", airplanes inertia, etc etc, but which does what?

In general, why are larger models easier to fly, and small too twitchy? There might be some interesting things going on which we could exploit to our favor - just like KF airfoils. F1N and micro-scale guys could know , but I'm looking for general-RC usable things, not 10g featherlight 1m contest planes...
Posted by Richard_s | Aug 16, 2009 @ 02:53 PM | 2,972 Views
some pics of 1 meter flying wing, or how should I call it
Posted by Richard_s | Nov 05, 2008 @ 01:13 PM | 3,228 Views
90cm span, 60cm length. turnigy 2822, 8x6 SF prop, 2s lipol 1000mAh, 8g servos
Posted by Richard_s | Sep 05, 2008 @ 02:16 AM | 3,671 Views
construction in progress
Posted by Richard_s | Aug 13, 2008 @ 06:49 AM | 3,992 Views
My 22" Harpy before maiden, and after few flights . I was`nt quick enough. Im working on little bigger one, will post plans on RCG soon.
Posted by Richard_s | Aug 13, 2008 @ 06:47 AM | 3,941 Views
Im waitnig for some covering film. Install electronics, and done
Posted by Richard_s | Aug 12, 2008 @ 02:19 AM | 4,046 Views
There was small airplane buzzing all day above our quiet town on sunday. So I went to that mini-airport (I dont know if it can be called airport... I has only a runway and small hangar ) to see whats going on. I want one of these . They offered me a ride, but fee was just tooooooo high