Does an airplane pilot get to pick his co-pilot?

In most cases, especially at an airline or in the military, the answer is no. You fly with whom you are assigned to fly with. It is sometimes possible to arrange your schedule to fly with someone you would prefer to fly with once in awhile, but that's often not possible.

it is not a healthy crew management method.. you want your crews be flexible and cooperate ACROSS your fleet manpower, not have bromances flying up there.

yes, there would be pilots / people who are more liked than others. but you need someone to fly with the sociopatic idiot you cannot washout at the moment because of his ties with [senior management, chain of command]

flight schedulers are responsible for assigning the crews. the pilot may have a say into it, but so does the FO. truth to be told, our squadron with twenty pilots and twelve crewchiefs, supporting two H24 duties and regular flights, just cannot afford the pilots with the option of picking who likes whom.

the duty scheduling guy has already enough sudoku to solve with the days off and legal requirements... bitching about who he assigned to you for the duty is all you can do about that.

Generally NOT, but it may happen for certain circumstances -

Most of the time you are teamed with same crew until you get back to base -

Then the next series of flights, other crew until again coming back to base -

Schedulers team pilot crew (and cabin crews) in function of minimum guarantee flight time -

And to avoid having to pay overtime -

Example - ensure that ALL crews fly at least minimum guarantee monthly i.e. 67 hrs -

Many factors enter in play for crew scheduling -

Such as currency, minimum guarantee and overtime, recurrent training schedules, vacations -

.

not usually, but given a choice I'd pick Margot Robbie or Jennifer Lawrence.

The Captain gets to decide and can remove the F/O from his trip. He will have to justify that to the Chief Pilot.

i would say no. unless you're flying a single seat plane like an F-22 Raptor. if you're training, then no. you train with someone who has more experience.

good luck.

Usually not

I wish

Nope...

it's very rare.