green-air.blogspot.com
Building adventures of an Ultralight Glider: Struts delight!
http://green-air.blogspot.com/2013/06/struts-delight.html
Building adventures of an Ultralight Glider. Saturday, June 15, 2013. Then it hit me: the wing was a parallelogram. A quick measurement confirmed that, two inches out of square. Loosen all the internal drag bracing, pick one to tighten, and viola now the struts matched up. Took off 6.5" exactly from each aft strut and that was about as close to no washout as I could set it. Only took five hours to make two cuts and drill two holes. And that doesn't include last weekend's setup. Posted by Dan Edwards.
green-air.blogspot.com
Building adventures of an Ultralight Glider: June 2013
http://green-air.blogspot.com/2013_06_01_archive.html
Building adventures of an Ultralight Glider. Saturday, June 15, 2013. Then it hit me: the wing was a parallelogram. A quick measurement confirmed that, two inches out of square. Loosen all the internal drag bracing, pick one to tighten, and viola now the struts matched up. Took off 6.5" exactly from each aft strut and that was about as close to no washout as I could set it. Only took five hours to make two cuts and drill two holes. And that doesn't include last weekend's setup. Posted by Dan Edwards.
green-air.blogspot.com
Building adventures of an Ultralight Glider: September 2014
http://green-air.blogspot.com/2014_09_01_archive.html
Building adventures of an Ultralight Glider. Sunday, September 21, 2014. Back doing something, anything. How long has it been since I worked on Goat? Almost a year. Woof. I'm not entirely convinced of the upper rear connection, but it's a thing now. Oh, current structure weight is 97.6 lb as measured on the bathroom scale. Flaps, ailerons, ribs, and covering remain. Posted by Dan Edwards. Subscribe to: Posts (Atom). View my complete profile. The main BUG page. Planeador Ultraliviano GOAT Colombia.
green-air.blogspot.com
Building adventures of an Ultralight Glider: March 2012
http://green-air.blogspot.com/2012_03_01_archive.html
Building adventures of an Ultralight Glider. Saturday, March 24, 2012. Wing loading at 6g. Using the AVL model I gave in a previous post, we'd like the wing loading for say a 6g pull-up maneuver. Say CLmax is 1.5 and load factor is 6 (using gross mass of 305 lb-mass), giving a necessary condition of 80 ft/s (54mph) and -21 deg elevator. At this test case, the trefftz plane shows:. Surface # 1 wing. Chordwise = 10 # Spanwise = 10 First strip = 1. Surface area = 179.309448 Ave. chord = 4.974011. 3 -111640 ...
green-air.blogspot.com
Building adventures of an Ultralight Glider: August 2013
http://green-air.blogspot.com/2013_08_01_archive.html
Building adventures of an Ultralight Glider. Saturday, August 24, 2013. Mid 70's in August? The weather this weekend is too nice for me not to put some time working on Goat. And it's only Saturday! I was working earlier this week on making some brackets for the jury struts the other night, but then I realized I drilled them at 3/16" instead of for rivets, so that was frustrating and I quit for several days. Throwing away parts sucks. As a point perhaps of interest, here's a picture of all the bolts remai...
green-air.blogspot.com
Building adventures of an Ultralight Glider: June 2012
http://green-air.blogspot.com/2012_06_01_archive.html
Building adventures of an Ultralight Glider. Sunday, June 24, 2012. Had a day off of work while on travel in Utah and made an appointment to get a hang glider lesson with Steve P. from wingsoverwasatch.com. Only have a few photos, but am sharing what I have. Steve made a GoPro video shot from the left wing. High value from the morning's instruction! Many thanks to Steve P. at wingsoverwasatch.com. Posted by Dan Edwards. Subscribe to: Posts (Atom). View my complete profile. The main BUG page.
green-air.blogspot.com
Building adventures of an Ultralight Glider: Jury struts
http://green-air.blogspot.com/2013/10/jury-struts.html
Building adventures of an Ultralight Glider. Sunday, October 27, 2013. The new bi-metal, 14tpi band-saw blade arrived. Makes a huge difference. Why didn't I invest in a band-saw before? Cuts straight, fast, and the teeth marks less ragged than the old blade. It probably also helps that I spent twenty minutes aligning the blade and making sure the line guides weren't too loose. Now the saw doesn't make tick-tick-tick noises. So I cut a whole bunch of flat parts one weeknight. Feels better too. Weird t...
green-air.blogspot.com
Building adventures of an Ultralight Glider: May 2013
http://green-air.blogspot.com/2013_05_01_archive.html
Building adventures of an Ultralight Glider. Monday, May 27, 2013. A little effort on the aft strut attachments. Drilled the attach points in the forward strut (I'm out of AN3-16's now, so had to put in a bolt order). Also I put the sleeve into the aft strut and put in six rivets per the drawings. Then with some filing, the aft strut can bolt in the correct location with just enough clearance to not rub. I also did the other side, but again with the running out of bolts, it's not put together. The Goat 1...
green-air.blogspot.com
Building adventures of an Ultralight Glider: October 2013
http://green-air.blogspot.com/2013_10_01_archive.html
Building adventures of an Ultralight Glider. Sunday, October 27, 2013. The new bi-metal, 14tpi band-saw blade arrived. Makes a huge difference. Why didn't I invest in a band-saw before? Cuts straight, fast, and the teeth marks less ragged than the old blade. It probably also helps that I spent twenty minutes aligning the blade and making sure the line guides weren't too loose. Now the saw doesn't make tick-tick-tick noises. So I cut a whole bunch of flat parts one weeknight. Feels better too. Weird t...
green-air.blogspot.com
Building adventures of an Ultralight Glider: Mid 70's in August?
http://green-air.blogspot.com/2013/08/mid-70s-in-august.html
Building adventures of an Ultralight Glider. Saturday, August 24, 2013. Mid 70's in August? The weather this weekend is too nice for me not to put some time working on Goat. And it's only Saturday! I was working earlier this week on making some brackets for the jury struts the other night, but then I realized I drilled them at 3/16" instead of for rivets, so that was frustrating and I quit for several days. Throwing away parts sucks. As a point perhaps of interest, here's a picture of all the bolts remai...
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