1OR4 - North Plains Gliderport Link to the gateway 1OR4 North Plains Oregon Glider club WVSC near KPDX and KHIO For X-plane 10 V10 Zip file (2015-05-29) 1OR4 North Plains Oregon Glider club WVSC near KPDX and KHIO For X-plane 10 V10 Zip file (29.05.2015)