A CV-22 Osprey aircraft from the 8th Special Operations Squadron flies over the Emerald Coast outside Hurlburt Field, Fla., on Jan. 31, 2009. While over the water, the crew practiced using a hoist, which is used to rescue stranded personnel. DOD photo by Senior Airman Julianne Showalter, U.S. Air Force. (Released)

DefenseNews reports members of Congress are questioning an Air Force proposal to use the V-22 Osprey tiltrotar in addition to the HH-60 for Combat Search and Rescue.

Opponents site the very strong downwash from the aircraft and higher cost.

Proponents site the V-22s higher speed and range.

It appears politics may also be at work here, surprise, surprise.