- Jul 19, 2009
- Reaction score
I know a bloke who has built models similar to this to test his theories. Main difference seems to be that his disc spins- like a frisbee.Hi,I know this is an old thread, but I'm all for recycling, so here goes.
On another forum, one of the guys has just posted this little beauty. It's a bit cartoonish, but the general idea is there. Here's what he said about it: I think he may be on to something...
Large rudder and all-flying elevators.
Beefy balloon tires.
It would handle pretty much like a gyrocopter, only safer since the disk wing is both more compact and less likely to break if it hits a tree branch or something.
Two-axis controls. Weight, inertia, and aerodynamic forces will keep the free-moving wing disk aligned properly. All you have to worry about is up and down. It's spin-proof and stall-proof.
Can probably do STOL.
A twelve foot disk gives us about 120 sq feet of wing area which is plenty for a plane this size.
Now here's my favorite bit.
Make the wing disk a tube and fabric structure that can fold up like an umbrella.
Bundle it into a canvas tube, strap it to the roof of your car and stick a trailer hitch the tail of the fuselage for towing.
The way this thing would handle, combined with the way it's built, means you could pull off stuff that would be too dangerous in a conventional plane.
Now this thing would never be all that fast, but it would be easy to fly and friendly to newbies.
A low aspect wing gets worse and worse in efficiency until it reaches about 2:1 when it turns around and improves dramatically. A flying body is quite efficient.Anything will fly if it has enough power. What efficiencies are available with a low aspect wing like that? Nev
Yup, 1929.From the Nurflugel site:NACA paper by Zimmerman on the subject (1929),
CofA reqt only via airworthiness design requirements, if applicable ... eg FAR 23 and aerobatic aircraft are not exempt....it is a CofA requirement .... aerobatic aircraft are an exception..
That's basically how a Flying Flea works and they fly fine.With the dihedral, the ailerons became so ineffective they were useless. I could only turn now with the rudder.
I reckon a full-size like this would be awful.
but they land and stop so short angle across any standard runway is fine ... if you can wheels down to full stop in under 200ft you can put a lot of angle into any landing on a 'normal' runway ;-) BUT I will admit dialling in wing down on a spoiler on the HM290FB did give it up to around 10knts direct cross wind ... but I never flew it as a must fly aircraft and if it was really crossed up and gusting it was as much of a day out to sit and drink coffee and talk flying $hit with all the other pilotsThey don't handle a crosswind unless equipped with spoilers etc. Nev