Postal: Sonex Aircraft, LLC P.O. Box 2521 Oshkosh, WI 54903 Shipping: Sonex Aircraft, LLC 511 Aviation Road Oshkosh, WI 54902 E-Mail: Sales & Information Orders Billing Questions Tech Support Shipping/Freight Phone: 920-231-8297 Tech Support: 920-230-TECH Hours: M,W,F 10am-Noon & 2pm-4pm CST Fax: 920-426-8333 Visit Us: Map to Factory, Lodging, Restaurants, & Local Attractions Sonex Aircraft Terms and Conditions