- Joined
- Jan 27, 2009
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I saw a posting on FB the other day and it got my mind working. I decided to do a pure R/C 2x upscale using BT-80 tubing, and doing a complete swag on the dimensions/sweep etc just looking at the photos in the Fake Wulf Gallery as I've never had or seen one in person. I tried to keep it under 6 oz, and indoor test glides showed real promise. I wanted to keep the nose/transition for the looks as I really like them. I wound up using openrocket to print a 1.5" long transition from 2.6" to 1.6" on thick photo stock and then cutting the forward part of the body tube into little pointy fingers, about 16 of them so when I slid the transition over the fingers they would center and allow me to glue it to fingers and not have to add the weight of a tube and centering rings. Worked great. I also used the template to cut vinyl wrap to go over the transition after it was installed.
I was a bit worried about wing flex, I went light on the carbon for weight and they did turn out to be a bit floppy, on the 9th flight this morning I overstressed it and bent the wing slightly, so I pulled it off and made a new wing with less dihedral, less wingtip toe in(to reduce pitch up effect) and doubled the spars. Flew great, hands off glide, just touch the ailerons for a turn, no elevator needed, just a slight flare before touchdown. The new wing is a bit heavier so flight weight is 6.5 oz now, glide weight around 6, but you can see glide is very nice. 35" wingspan.
I decided to leave it in the white winter scheme to save weight and hand cut some vinyl trim for markings.
I was a bit worried about wing flex, I went light on the carbon for weight and they did turn out to be a bit floppy, on the 9th flight this morning I overstressed it and bent the wing slightly, so I pulled it off and made a new wing with less dihedral, less wingtip toe in(to reduce pitch up effect) and doubled the spars. Flew great, hands off glide, just touch the ailerons for a turn, no elevator needed, just a slight flare before touchdown. The new wing is a bit heavier so flight weight is 6.5 oz now, glide weight around 6, but you can see glide is very nice. 35" wingspan.
I decided to leave it in the white winter scheme to save weight and hand cut some vinyl trim for markings.