QUAD CITY CHALLENGER II • $6,500 • MUST GO NOW! • Challenger II with amphibious floats never been used, new engine and log book from “Rotax Rick” amphibious flying fun. Fabric in excellent condition $ best offer needs to go plane located in northern Maine • Contact Gene Knight , Owner - located Mapleton, ME 04757 United States • Telephone: ---------- • Posted July 2, 2025 • Show all Ads posted by this Advertiser • Recommend This Ad to a Friend • Email Advertiser • Save to Watchlist • Report This Ad