"Yes, it is fun. The aircraft should be controlled by telepathy, among other characteristics. This was not done yet."

"Yes, you did :-)
I was speaking with my tracking antenna.
This may happen with UAV's.
Sometimes you loose the quality of the signal."

"I have no idea of the final price and operating cost at this time, get in touch with them.
By the way, where are you located? I have some difficulties in following you.
Either my internet connection is poor, or you're now on the move?
Or over/near…"

"I must say that this discussion about "low budget" half a meter section flying cube for one thousand kilometers range@40kg payload is fun, at least technically, but as cost efficiency also (if that's not a rocket, but that's a very very different…"

"a nice calculator for weight to volume is here http://www.aqua-calc.com/calculate/weight-to-volume
where you can get some insights either on electricity cost; return of investment; mortgage and loan calculator; powers of two; daily calorie needs;…"

"hft, do you have a specific size of the 40kg payload (volume/dimensions...)
40kg of lead can be quite small, 40 kg featherless may fit on same size only ...compressed, lol"