Clearly it's all dependent on the type and loadout. Some planes are easy, especially the ones with contra rotating props left & right.
Taking off, flying and landing with empty loadout and 10% fuel is way easy.
But with an SC2000 a He-111 can't even take off. Edit: Can be done, using chocks. But you'll be flying huge distances with the left engine at 110% the whole time. Very hard.
A Betty is a challenge due to the very heavy torque.
Using a Mig 9 is even more troublesome because of the engines placed in the fuselage. Even more so because of the Mig 9 throttle bug. And you have to plan every move because of the very slow response in turning. Haven't made a succesful landing in that one yet.
You can even do this with a Do-335, using the torque differential between front and rear engine
A TB-3 with 10% fuel and no ammo is funny to watch talking off: Put chocks in, run those engines to 110% & max RPM and release chocks. Never seen a TB-3 gain speed so fast and take off almost vertically

But, if you don't throtttle back it will stall. Using only the engines you can maintain a steady climb with 70 km/h, if you're good enough (I'm not).