It's been mentioned or infered several times that the viability of heat treatment is dependent on the alloy. Did anyone ask Sigurd what alloy he...
Sigurd, I was researching this question myself a couple of weeks ago. Some good explanations of the process were available online. Some of the...
Richard, I apologise again if I have offended any of the well intentioned people, yourself included. My expectations about the level of...
Rick, We did a torsional stiffness test on the ailerons we made with no core. So we can peg that to the calculations or FEA if we want....
correction and adding to my reply to SamSam SamSam, It won't help if I make mistakes or leave things out in the message. Re the sectional...
Rick W, Look I'm quite genuinely sorry if I offended any of the well meaning people. I had a strong reaction to the careless remarks from PAR...
dynel as core SamSam, Thanks for the link, I had a look. It's a full sized glider, but lighter than normal and initially 13.9m span instead...
dynel as core Gonzo, and anyone else that feels the same. This idea of dynel as core is not my pet idea. It's something that has been done...
dynel as core I'm going to assume that anyone commenting has read the thread, although it's not always clear that they have. I get it that...
PAR, It would have helped if you had simply made rational, technical, comment. I've challenged you on what you said: ***************...
This is firstly for BWD, but also for anyone interested in the technical issues. Firstly the issue of the mysterious email. I recieved an...
Rick, Thanks for the ideas. Yea, I agree some testing will be a good idea. For us this will probably be mostly about processing or handling of...
G'day again, My email told me I had a reply to my post but I could not see it on the forum, so I'll paste it bellow. It's from someone...
G'day, I was thinking of using some dynel cloth to achieve a thin core in a sandwich. Carbon twill 2x200g/ dynel 105g/ carbon twill 200g. The...
Thanks Jimbo, You didn't include the link to the controller you were refering to. I haven't had a look myself yet. We had a good but old...
Thanks Andrew, It's reasuring that you are just using the apparent softening/plasticity of the coupon as your test. I,m guessing this is the...
Thanks Jimbo, I think you're right, we could just pull finger and do a stock ASTM D648 test for future work. The glider prototype we are...
G'day, I confess ours is a sailplane project rather than a sailboat. I hope someone can help with some ideas. I'm looking for a simplified...
