Here is the full list of all 17 SKYE achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Found all the random spyglasses people lost over the years.
Completed all other achievements in the game! You can retire now.
Helped out every villager and completed every quest! Remember to bill them next time.
Achieve a gold rank in both races. Your flight skills are excellent!
Achieve a bronze rank or higher in both races. That's something already.
Achieve a silver rank or higher in both races. That's pretty good!
Satisfied a trigger happy lady's lust for gunfire and target practice.
Listened to Elizabeth's war stories for the first time.
Ran all the errands for Norman and now he owes you instead.
Saved Samuel from his embarrassment and his shame.
Took Samuel's amusement away by shooting all the targets out of the sky!
Ran errands for Norman for the first time.
Fly a distance of 20 kilometers! Don't worry, the plane runs on renewable energy
It's an entirely different kind of flying! Completed your first race!
Landed the plane and docked it at the village for the first time!
Established communication with your old friend Samuel for the first time.
Punch the throttle and take flight for the first time!