There should be no reason that a ground medic can't be a flight medic with a simple weekend training course to cover the subtle differences between a ground and air ambulance.
While I thank you for agreeing with me, I am going to have to 100% disagree with this. There are many things that need to be taken into consideration.
Flight Physiology, Stressors of Flight,
HELICOPTER SAFETY, also as a crew member, you WILL be participating in pre-flight check offs. Moreover, a medic needs to learn things such as normal lab values of a CMP or BMP, CBC, etc and other values that can be obtained on an iStat or another Point of Care device. Moreover, if the medic has no training on vents, they will need that as well. Furthermore, air and surface CCT transport are more in line with ICU type practice (Acute & Critical Care) than the emergent (ER) care that the paramedic is trained to provide.
The flight paramedic needs a pretty good grasp of ICP monitoring for the ICU to ICU transports, as well as other values. The paramedic will also need a knowledge of common critical care medications (Glycoprotein iib/iiia inhibitors, propofol, pent, etc), the management and considerations of these drips, the use of IV Pumps, heparin protocols, pump troubleshooting, vent troubleshooting, calculating trip time doses, advanced skills (chest tube insertion as one). Not to mention, the medic needs to be oriented to the safety protocols and what to do in case of an emergency (such as the disable switches, meeting at x O'clock where the nose lands, how to play an integral part in spotting LZ Hazards such as power lines, IRD, etc).
This is much more than can be taught in weeks.
As a matter of fact, a lot of services require that you obtain FP-C within 1 year of hire, or even before hire.