Pietenpol-List: Off-topic: new type of covering

[matronics]

Original Posted By: "ivan.todorovic"
Some woods just don't respond well to steaming orsoaking. Some bend quite easily. Just like any beamthe bending is centered around the neutral line inthe center. On the inside of the bend we see compressionand the outside tension.The "modulus of elasticity" ( ? ) is the important factorhere, the higher the better. Ash, a very good bending woodis 1.77, White Oak-1.78. But Red Oak is only 1.49.Sitka Spruce-1.57. The pines have a wide range, from1.76 for Southern Yellow Shortleaf down to 1.2 for Sugar Pine. The forest Lab has tested nine varieties ofPines.Pick the right one and Bob's your uncle. The wrong one?You're up that very special creek.Next question, how do you know which one you've got.Ponderosa was mentioned. Unfortunately it's modulusis only 1.26, not a good bending wood.Clif"Learning is finding out what you already know. Doing is demonstrating that you know it.Teaching is reminding others that they know it just as well as you."Richard Bach> The topic came up with Ponderosa Pine.> > Maybe the thing to do is to use a more common aircraft wood....> > David Paule> ________________________________________________________________________________Subject: Pietenpol-List: Off-topic: new type of covering

[matronics]

Original Posted By: Oscar Zuniga
Bear attacked the airplane looking for baitfish that was stored in the aft storage bin while on an outdoor fishing trip. Duct tape covering is applied, and it goes like new!Read this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/att0 ... __________