Possessive case. Forming rules
Which one is correct? And why? Thanks
The Wright brothers made their official public flight in 1908 and amazed the world with their (aeroplane’s / aeroplane) flying ability.
Solution 1:
Depends what you are trying to say.
Their aeroplane's flying ability = the ability of their plane to fly.
Their aeroplane flying ability = their ability to fly a plane (but something like their flying skills would be more natural).