Convert any suitable offshore supply vessel in to a powerful seismic source boat overnight. Large VSP surveys require a large seismic source. Safe and efficient operations are our priority and the BigDipperTM source minizes rig time and operational costs in shallow or deep waters, in rough or calm seas. The hydraulically operated sliding deployment system can deploy multiple arrays simultaneously with READ's optimized configuration of 1500 cu.in. per array So, with up to 6000 cu.in. to play with the source is not only perfect for PerForMTM and 3D HybridVSPTM surveys, but is equally suited to OBS, site surveys or other common source vessel applications.