Indeed, there are various ways to handle "staging" of aircraft, including parachuting batteries, electric towplanes, assisted groundlaunch, piggyback, etc. Thes

Indeed, there are various ways to handle "staging" of aircraft, including parachuting batteries, electric towplanes, assisted groundlaunch, piggyback, etc. These may have niche uses, particularly for cargo flights, but I suspect that will only happen if 1) jet air travel pays for its full climate cost and 2) we stop making any progress in battery technology. It'd be fun to try, though.