It is six years now since I did a trip in my bonanza down the western side of Africa to Cape Town returning up the eastern side. I am told that the western route down is not now recommended partly because of getting avgas difficulties (won’t affect you) but also because of political difficulties in some of the French speaking countries – Mali, Niger and Burkino Faso for example. However the eastern route – Egypt, Sudan, Kenya and southward should still be straightforward.
I think Mike Grey of White Rose remains the doyen for obtaining overflight and landing permits. I have also used GASE and there are advantages to using them on the eastern route where they have useful contacts who could ease your way through the bureaucracy in a number of stop over airports. PM if you want any further details.
Of course Flying in Pilot Uniform will make many things Easier
BA used to return fuel for flights to Abuja, Accra & Lagos because of concerns over JetA1. Used to be fun going down the runway and getting airborne at MTOW.
Not sure how you’d get a quality check but, but try find out.
Mike – you might like to add that you are (if you are) in Puerto Rico, to your profile 
I have never done a trip like yours but AFAICT almost everybody who has, did it with heavy support from overflight agents, and they mostly don’t mention that in articles they write afterwards I did once plan a flight down to Luxor, Egypt, and after months of attempted comms with the Egyptian CAA gave up. Then discovered that an agent can get you the paperwork, including visas, in 24hrs, for a few hundred $. Now Egypt has that new GA agent near Cairo which gets great reports.
Katamarino wrote:
https://www.gasupportegypt.com/Talk to these guys. They’re fantastic, far cheaper than they should be, and know everything you might want to know about flying GA through Africa.
Yep, I’ve heard LOTS of people rave about them. Trying to do the planning myself, just to “immerse” myself in the etiquette for CAA communication, but will likely end up falling back on them when I can’t communicate with the CAA.
172driver wrote:
if you want to some touring and enjoy the trip I would suggest going down via Eastern Africa and definitely visit Namibia on the way. Africa is not the easiest part of the world to travel in, but it is absolutely fascinating.
Absolutely, my goal is to spend time enjoying the sights around the world. Taking off 9 months to do the trip as a once-in-a-lifetime trip. Any other specific countries/cities would be great. I’ve never been outside North America / Europe / Japan / China before, so there will be lots new for me to see.
I’ve done two roundtrip crossings to Europe before (via Iqaluit, Kangerlussuaq, Reykjavik, Wick) which got me hooked. If the rest of the world is half as good, the trip will be amazing.
https://www.gasupportegypt.com/
Talk to these guys. They’re fantastic, far cheaper than they should be, and know everything you might want to know about flying GA through Africa.
Burning Jet-A you’ve already eliminated a big problem of flying in Africa.
There are a few people on here who have extensive experience and I’m sure someone will be along shortly. Personally I can only speak for Namibia, South Africa and Morocco and, to a lesser extent, Kenya and Tanzania. I don’t know if your trip is to simply fly around the world (great as that is!), but if you want to some touring and enjoy the trip I would suggest going down via Eastern Africa and definitely visit Namibia on the way. Africa is not the easiest part of the world to travel in, but it is absolutely fascinating.
While I never did, many people say you should fly in uniform. I’m sure it helps. As do some well-placed crisp dollar bills.
Safety wise, see https://safeairspace.net/
It won’t tell you about GA friendliness.
