DARPA Cardboard Nurflugel - RC Groups
Thread Tools
Jan 18, 2017, 11:12 PM
Registered User
Discussion

DARPA Cardboard Nurflugel


Came across this article today on the NewAtlas website. A cardboard, biodegradeable "delivery drone" ... it's really an autonomous flying wing glider.

The build quality seems a bit rough, not sure what the constraints are on the design that may cause this. For example the leading edge appears to be square and not round.

Pretty neat concept though ... maybe it would be fun to have a cardboard nurflugel cookup ...?

-Dave
Sign up now
to remove ads between posts
Jan 19, 2017, 11:58 AM
You know nothing....
Stuart A's Avatar
Quote:
Originally Posted by Cap_n_Dave
Came across this article today on the NewAtlas website. A cardboard, biodegradeable "delivery drone" ... it's really an autonomous flying wing glider.

The build quality seems a bit rough, not sure what the constraints are on the design that may cause this. For example the leading edge appears to be square and not round.

Pretty neat concept though ... maybe it would be fun to have a cardboard nurflugel cookup ...?

-Dave
Neat!From the height of the drop I'd guess aerodynamics aren't all that crucial,as long as it can reach its destination.
There's a guy on S/B ducted fans building a card aircraft,so not out of the question,so long as a 'normal'spar system is allowed.
Jan 19, 2017, 06:47 PM
Registered User
EdSoars's Avatar
Vertical "grain" corrugated cardboard should make a decent shear web between the top and bottom surfaces. Keep it pure trashcan, man.
Ed
Jan 23, 2017, 02:33 PM
Registered User
With the capability to land in controlled point, it seems like a good candidate for this:

https://en.wikipedia.org/wiki/Paper_...hed_from_space

These sharp, angular shapes might be aerodynamically beneficial at hypersonic speeds
Jan 23, 2017, 02:55 PM
Registered User
Quote:
Originally Posted by Davidz90
Ooooohhh!

That's cool! A flotilla of space-launched flying wings!

-Dave
Mar 23, 2017, 08:27 AM
Registered User
I've started building a cardboard nurflugel, 20 degree sweep (at the quarter chord), about 10" chord with no taper, 2m span, 5 deg of washout at the tip ("linear twist").

I cut the bottom skins last week, this morning I measured the mass of both panels (remember these are just the bottom wing skins) ... 395g. It's "double-walled" cardboard, so I need to use the single-thickness stuff in order to get a reasonable wing loading.

More later.

-Dave


Thread Tools