I made up the winglets for the dragon, and decided to make them
removable. This involved two locating pins in the wingtip that matched
two holes in the winglet, and a nylon screw (old wing-bolt) that holds the winglet into place. I made them so they are exchangeable, so that if I
have a inner/outer red/white colour scheme, I can reverse it by swapping
them around. I then realised that this also made them invertable. But to invert them leads to an inverted winglet. Not unusual, as in the "Canada Goose" aircraft which is another canard. (Tried googling for an image but
got 3.2 billion hits for 'wildfowl'...)

While fiddling with these and trying them on in various positions, I
realised that I was playing with a wing with a symmetrical section. The
only way to tell the top from the bottom is to look at the angle of the
root rib, and consider the dihedral angle. Then I thought: ANHEDRAL!

It might look really hot! :-) The wingtips might touch the ground. :-(
The wing-bolt reinforcing plates are already attached, and I'd have to add another set on the other side. :-( Maybe I could make a wing that fit on *either* way! :-) Servo bays and mounting points might be a little hard
to arrange. :-( It might look really hot! :-)

Tasks for tomorrow: Discuss characteristics of anhedral wings with other pilots, and try to see if there is any practical reason why an anhedral
wing would not be a good idea. Dummy-up the wing structure with both dihedral/anhedral wing position, and dorsal/ventral winglets, photograph
and compare for looks.





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þ Synchronet þ Made of wood and glue, but mostly glue!

Re: Interesting!
By: Angus McLeod to Digital Man on Sat Aug 13 2005 12:15 am

I made up the winglets for the dragon, and decided to make them
removable. This involved two locating pins in the wingtip that matched
two holes in the winglet, and a nylon screw (old wing-bolt) that holds the winglet into place. I made them so they are exchangeable, so that if I
have a inner/outer red/white colour scheme, I can reverse it by swapping them around. I then realised that this also made them invertable. But to invert them leads to an inverted winglet. Not unusual, as in the "Canada Goose" aircraft which is another canard. (Tried googling for an image but got 3.2 billion hits for 'wildfowl'...)

While fiddling with these and trying them on in various positions, I realised that I was playing with a wing with a symmetrical section. The only way to tell the top from the bottom is to look at the angle of the
root rib, and consider the dihedral angle. Then I thought: ANHEDRAL!

Yeah, like I know what *that* is! :-)

It might look really hot! :-) The wingtips might touch the ground. :-( The wing-bolt reinforcing plates are already attached, and I'd have to add another set on the other side. :-( Maybe I could make a wing that fit on *either* way! :-) Servo bays and mounting points might be a little hard
to arrange. :-( It might look really hot! :-)

Tasks for tomorrow: Discuss characteristics of anhedral wings with other pilots, and try to see if there is any practical reason why an anhedral
wing would not be a good idea. Dummy-up the wing structure with both dihedral/anhedral wing position, and dorsal/ventral winglets, photograph
and compare for looks.

I'll wait for the photos. :-)

digital man

Snapple "Real Fact" #169:
The first human-made object to break the sound barrier was a whip.

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