Is it possible to purchase a sample of the material used on the space shuttles thermal protection system?
I don't think soHowever, you can contact the NASA Information Center and ask them for detailed information on the materialTo do any precise investigations you will of course need to become completely familiar with ceramics and the mechanics of heat transfer in solidsThat information will help you understand the pros and cons of various material mixes which have been tested and discarded as possible heat shield materialsWere you to be interested in conducting tests of various things you can obtain locally, you would need a very accurate high temperature thermometer, a blow torch, and various samples of ceramic and porcelan materials that you can obtain in your areaYou might look at sources like junk yards near you and old electrical materials placesHeat the outside of the ceramic and measure the temperature of the backside of the ceramic after a set time limit.say 1 minute, then 2 minutes, etcYou could then produce a test report analysis of the things you testedRegards, Zah
it depends on the crane over the road mobile cranes drive them selfs to the job site and they have a dolly for the conter weights and then on the larger ones a semi brings in the conter weightsThen on a latise boom crawler crane it depends on the size of the crane if its a small one say a 150 ton crane the body and tracks can usally be moved together on a semi and the lattice boom will come on a seperate truck and is usally assembled with a all terrain fork liftThen say on a larger crawler crane like a 500 tonner the body and tracks and carrige all come in seperate peices and are ussally put togther with a RT crane(more on the latter) and these cranes are held together with massive pins i saw a crew build a 400 ton manitowac crane with 150 feet of stick in less then a dayNow if they have to add more stick like say 200 feet of main stick and 150 feet of luffing jib they will build it all on the ground and then another crane will help lift the stick up Then there are RT cranes or rough terrain cranes they are moved on a semi to and from the job site and usally require no assebley thats all i know about i cant say how a tower crane is build iv never see one build hope this helps
lattice type cranes are always disasembled to be transportedmobile cranes such as truck cranes drive on the road without having to be taken apartRough Terrain cranes are loaded onto a carrier to be transported.
