Try this. You've seen those medieval war tools that were used to chuck huge boulders? I'm not getting its name. C something. It has a swing arm that builds momentum fast for about a quarter turn. So load a plane on it and as soon as it develops full power release it like a boulder. Hire engineers to design the lock and release mechanism. Ah, no. I don't know how to land it. Maybe use a cable to grab it's wheel like on aircraft carriers? Or bounce on a giant trampoline. Let it take off first, eh. So anyway, if that C machine is too much of a sudden load on internal components and passengers, use the same steam powered machine used to launch planes on carriers. Cheers.