Date: Tue, 11 Oct 1994 03:37:41 -1000 From: dlwspr@ritvax.isc.rit.edu Message-Id: <1994Oct11.133741.1159@ultb.isc.rit.edu> Organization: Rochester Institute of Technology Subject: Bols, Bols & more Bols!! Does anyone out here have plans bor the "Bols"? I have seen pictures of them but have not seen any plans. Most have been very large 15-20' or larger. Any help or assistance will be appreciated. Is there a definition for a "Bol"? Keep Your Head Towards the SKY!! Dave Watson DLWSPR@ritvax.isc.edu = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Thu, 13 Oct 1994 22:39:22 -1000 From: andrew@tug.com (Andrew Beattie) Message-Id: Organization: /usr/lib/news/organisation Subject: Re: Bols, Bols & more Bols!! dlwspr@ritvax.isc.rit.edu writes: >Does anyone out here have plans bor the "Bols"? Plans? C'mon Dave, where's your pioneering spirit? The shape is very simple, you just need to design a wedge that will give a decent circular shape. If the back of the bol is basically flat, then the angle between the segments at that point is 360/(number of segments). If the outside of the Bol is basically a tube, then that portion of the segment will have parallel sides. Pick number of segments, an inside and outside diameter and hand-draw a curve that connects the two given angles. Note that the segment should be symetrical (or the hems won't be the same length. You will need to design in some angled vents to make it turn. Attatch a bridle loop to each (or maybe every-other) segment hem. Make the bridle nice and long (I'd guess at 3 times diameter). You may want to cascade the bridle to reduce it's bulk a little. Assuming that you are going for a decent size, building the Bol is the easy bit. Finding a suitable swivel might be somewhat more difficult. Andrew -- Netiquette-of-the-day: Reduce quotations but don't use null quotations You can FTP the kite FAQ's from ftp.hawaii.edu (directory /pub/rec/kites/faq) /-\ () >< () |\/| () >< () /-\ \-/ () >< () |/\| () >< () \-/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =