MadMan Posted August 24, 2008 Share Posted August 24, 2008 I need some advice on this, I have a spruce kit from Wicks ( why I didn't just buy the stock and cut to size myself I don't know:( ) but anyways, today I'm ready to fit and install the lwr. tri. long. and their no where the size they should be, ones .625 (5/8) and the other is .750 (3/4) so what should I do keep going or replace? and if I replace is there something I can use instead of shipping a 1x1 105" piece of spruce UPS? Quote Link to comment Share on other sites More sharing options...
Steve Innova Posted August 24, 2008 Share Posted August 24, 2008 Use them, they'll be fine. Quote Link to comment Share on other sites More sharing options...
Big Steve Posted August 24, 2008 Share Posted August 24, 2008 I could not justify the shipping cost for these so I made them out of some local Doug Fir with the right ring count. I made them .700 X.700 they worked great. 20% stronger and 20% heavier. The cost justified the trade. It helps to have a planner. build on STeve Quote Steve Harmon Lovin Life in Idaho Cozy IV Plans #1466 N232CZ http://websites.expercraft.com/bigsteve/ Working on Chapter 19,21 Link to comment Share on other sites More sharing options...
ZUCZZ Posted August 25, 2008 Share Posted August 25, 2008 On my plane I used Oregon pine, just because some was locally available. Like you, I would have been filled with doubt etc, now that I've got the experience ... I'd just used them and get on with it. Happy building. Quote I live in my own little world! but its OK, they know me here! Chris Van Hoof, Johannesburg, South Africa operate from FASY (Baragwanath) Cozy Mk IV, ZU-CZZ, IO-360 (200hp) 70x80 prop Link to comment Share on other sites More sharing options...
chasingmars Posted August 25, 2008 Share Posted August 25, 2008 Due to a minor "oaf moment" I broke one of my upper longeron doublers, so I was faced with the same dilemma, of expensive shipping for one piece of wood. I ended up using poplar, which worked very well, and was easy to get in clear straight grained pieces (which is not often true for pine round here). There's little volume in the lower longerons, so as long as strength is similar, a little bit higher density wood makes only a trivial difference to weight - in my case it was about 20 grams (less than half an ounce) for poplar doublers on both sides. The US forestry services has a good free publication, "Wood Handbook Wood as an engineering material. General Technical Report 113." online if you want to compare a candidate to Sitka Spruce. Quote Craig K. Cozy IV #1457 building chapter seven! http://www.maddyhome.com/canardpages/pages/chasingmars/index.html Link to comment Share on other sites More sharing options...
TMann Posted August 26, 2008 Share Posted August 26, 2008 Spruce is a poor man's poplar Quote T Mann - Loooong-EZ/20B Infinity R/G Chpts 18 Velocity/RG N951TM Mann's Airplane Factory We add rocket's to everything! 4, 5, 6, 7, 8. 9, 10, 14, 19, 20 Done Link to comment Share on other sites More sharing options...
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