<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body lang="EN-US" link="blue" vlink="#954F72"> <div class="WordSection1"> On a whim i started searching hot air balloon info. This is what I found. <o:p> </o:p> Silk Fabric (Sig) Yellow:0.33 oz. / sq.yd. <o:p> </o:p> Inside the balloon it weighs only 0.067 pounds. The difference is 0.008 pounds per cubic foot. So to lift a 200 pound person, we will need 25,000 cubic feet of hot air. That's a cube 30 feet on a side, or a sphere 37 feet in diameter. <o:p> </o:p> If you heat that air by 100 degrees F, it weighs about 7 grams less. Therefore, each cubic foot of air contained in a hot air balloon can lift about 7 grams. That's not much, and this is why hot air balloons are so huge -- to lift 1,000 pounds, you need about 65,000 cubic feet of hot air. <o:p> </o:p> How to Calculate the Weight of Air and Model Hot Air Balloon Lift. http://www.overflite.com/thermo.html <o:p> </o:p> As for material for the balloon(s), I wonder about the feasibility of using the spidersilk material that was used in the story of Yadjakali? Could this be used for balloons and or creating the basket? <o:p> </o:p> For structural members, what about grown lattice beams in the way Burris molds living wood? If they need to be magically strengthened, will they remain strong in non-magic areas? In fact, will any magically enhanced item or material retain its properties in a non-magic area? <o:p> </o:p> Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986"> Mail</a> for Windows 10 <o:p> </o:p> </div> </body> </html>