Hood River — Residents near the Ken Jernstedt Airfield may get a little noise relief this summer, thanks to a quieter propeller on the tow plane used by the Hood River Soaring group. The non-profit organization uses gliders to provide pilot training and sport gliding staged from a Glider Port at the Airfield. At the recommendation of the Airport Noise Workgroup, the Port of Hood River, owner of the airfield, is pitching in $6,000 — about 75 percent of the four-blade propeller’s cost and delivery.