MIT Variable Pitch Propeller Feb 10, 2014 0:22:48 GMT -6 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by greenb on Feb 10, 2014 0:22:48 GMT -6 here is a very interesting paper from mit acl.mit.edu/papers/GNC11_Cutler_uber.pdfhere is a a good read if your bored calhoun.nps.edu/public/bitstream/handle/10945/37600/13Sep_Choon_Junwei.pdf?sequence=1here is a thesis paper for a masters in engineering from Atilim University. acikarsiv.atilim.edu.tr/browse/156/168.pdf&embedded=true