From my experience with SAR, working for the Navy and sometimes with the USCG, it depends upon what assets are available. Sometimes the USCG had a Falcon 20 available, and they would use that, other times they used the C-130. Sometimes, depending upon locale, the helicopter was the fastest thing available. Each case is different, and highly dependent upon available assets and location.

If the American People allow private banks to control the issuance of their currency, first by inflation, then by deflation, the banks..., will deprive the People of all their Property,...Thomas Jefferson