rnbraud Posted October 22, 2007 Share Posted October 22, 2007 I read somewhere someone was using 1/4" phenolic, the kind called out in the plans for bearings, as hardpoint material for the NG-30. Is this an acceptable hardpoint material? Also, along the same lines, I have seen some websites where builders made a 15+ layup that was 1/4" thick, then let it cure, then cut out circles. Then they removed the foam down to the inner skin, floxed in the hardpoints, THEN, completed the 4 plies of the outside layup. Is it a good idea to put the hardpoints below the layup, instead of on top as in the plans? Later. Quote Link to comment Share on other sites More sharing options...
TMann Posted October 22, 2007 Share Posted October 22, 2007 I think that the Berkut plans call out 1/4" phenolic in this area. I'll check tonight to be sure. 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...
TMann Posted October 22, 2007 Share Posted October 22, 2007 I checked the Berkut drawings and they call for a 3 inch circular phenolic pad (1/4" type 'L') centered in this area. That may be where this idea originated from. I'm using their spec on my Long-EZ project in areas calling for this type of reenforcement. 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...
rnbraud Posted October 22, 2007 Author Share Posted October 22, 2007 I checked the Berkut drawings and they call for a 3 inch circular phenolic pad (1/4" type 'L') centered in this area. That may be where this idea originated from. I'm using their spec on my Long-EZ project in areas calling for this type of reenforcement. TMann, thanks for the research. I have decided to revert back to the original plans instructions. Mainly since I was unable to locate phenolic nor G-10 today and want to get the layups done this evening. Also, I didn't realize the 15 layers for the hardpoints didn't equal to 1/4". I assumed it did and therefore was considering 1/4" thick phenolic or G-10. Quote Link to comment Share on other sites More sharing options...
TMann Posted October 22, 2007 Share Posted October 22, 2007 TMann, thanks for the research. I have decided to revert back to the original plans instructions. Mainly since I was unable to locate phenolic nor G-10 today and want to get the layups done this evening. Also, I didn't realize the 15 layers for the hardpoints didn't equal to 1/4". I assumed it did and therefore was considering 1/4" thick phenolic or G-10. Yeah, I think the best source for phenolic may be Wicks. They sell it in smaller pieces so you don't end up making bird houses out of the leftovers. 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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