tophead 8 will again provide rotation threading the distal end 22 of the drill pipe section into the receiving end of the drill string 26 forming a drill string joint 28 fig3 demonstrates the mast 7 when it is fully through the cycle at this point in the cycle the advanced drill pipe section 18 has connected to the drill string 26 or a drill head and has progressed further into the earth during connection to the drill string 26 and drilling into the earth the floating sub 10 protects the tophead 8 by absorbing some of the shock associated with drilling and drill pipe make up the advanced drill pipe section 18 is advanced into the earth until the feed cylinder 7 is fully collapsed from here the tophead 8 rotates breaking the kelly connection 30 and detaching the kelly 12 from the advanced drill pipe section 18 which is now part of the drill string 26 the kelly can then be raised by raising the mast 7 returning the system to the original starting position shown in fig1 where the carousel 4 is then indexed and the process begins anew fig5 demonstrates an embodiment of the invention wherein the carousel rig 2 being transported by truck 24 in what is called the u201c road position u201d in this position the rig 2 is fully compacted with the feed cylinder 7 fully compressed and the kelly 12 extending through an empty storage chamber 9 within the carousel 4 this allows the entire drilling rig 2 to be transported to a desired location with ease fig6 demonstrates the carousel rig 2.