If you overfly a country and fly into their airspace, technically yes you need their permission. To obtain their permission look at the countries AIP for how to do that, all the information is there in a pretty standard format for all countries of the world. But there is an issue with doing that. The country will no doubt want to know your aircraft details, include the certificate of airworthiness. Kr2's don't have one, well mine doesn't, it flies on a permit to fly in the UK, in America you have experimental aircraft.
Not all countries allow non C of A aircraft into their airspace without a special permission, almost always obtainable, but sometimes with a fee. But, if the flight plan is accepted, no one checks if you have a C of A when you enter their airspace, you are just yet another aircraft to them. As long as you have a working radio and transponder, no one cares. But if they do start asking questions, you are stuffed without the correct permission. Some countries the permission or security clearance reference is required on the flight plan, so without it you can't even take off. So technically yes, but a risk worth taking if you can't be bothered or are not overflying Saudi Arabia or such other countries that shoot first and ask later. CH. ________________________________ -Please see LIST RULES and KRnet info at http://www.krnet.org/info.html -Change list delivery options at https://list.krnet.org/list/krnet.list.krnet.org/ Affinity List Info Board -Search recent KRnet Archives at https://list.krnet.org/empathy/list/krnet.list.krnet.org/ -Search John Boyea's decades of archive at https://www.mail-archive.com/krnet@list.krnet.org/