I have never done one, but when I searched the site, there were a few. One said the wings were made out of foamboard and covered in fondant. I would try the search and see what else you can find.
I've never done one, but these are the ones I have in my links file for airplanes. Sometimes, if you read the comments, you can get ideas on what to use. I would say you could use pastillage since it dries quick and very hard.
http://www.flickr.com/photos/dariacake/4042756758/
http://www.flickr.com/photos/debbiedoescakesnet/3972996016/
http://www.flickr.com/photos/lillybit21/3961466727/
http://www.flickr.com/photos/debbiedoescakesnet/3513804063/
http://www.flickr.com/photos/50721563@N06/4716013541/
http://www.flickr.com/photos/cakechester/4293623798/
http://www.flickr.com/photos/43622907@N08/4713074204/in/photostream/
http://www.flickr.com/photos/specialdaycakes/4913756387/
http://www.flickr.com/photos/allaboutcake/3705819857/
http://www.flickr.com/photos/thehouseofcakesdubai/3428661023/http://
www.flickr.com/photos/cakechester/4683657246/
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