With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead.
American engineer who has been participating in IETF meetings and has worked on a variety of routing and standards issues. Distinguished engineer in the routing software group at Juniper Networks and routing area director of the IETF. Former co-chair of the OPSEC and L3VPN working groups. Athor and co-author of several RFCs, such as: L3VPN Framework document and PPVPN Security Framework.