I need to extend the shaft on a 25cc methanol engine a distance of 600 mm. The shaft has to be light and strong (chromolly tube??) about 20mm o.d. and joined at either end by some form of universal coupling capable of 8000 r.p.m (hellical joint??)and will be turning an 500 cm dia.propellor so...
I would like to make some large model aircraft tyres - 7 3/4" in dia - (I cant buy them off the shelf). I can make a mold for the tyre, but was wondering if anyone out there knew what the best injectable foam/rubber would be. I need it to be extremely light, but firm. The smaller wheels I...
I would like to make some large model aircraft tyres - 7 3/4" in dia - (I cant buy them off the shelf). I can make a mold for the tyre, but was wondering if anyone out there knew what the best injectable foam/rubber would be. I need it to be extremely light, but firm. The smaller wheels I...
