Well, you need to climb up using Numpad 6 (by default). Climb slowly, and you'll get there in the end. The plane is too slow to climb radically, so take it easy. Otherwise, take a look at this
post, it should help you. If you still won't be able to pass it, tell and someone will do it for you. But, for now...For: gta1984_cjMissions: FreefallHelper: miromiroLink: <Click Here>Reward: 15.000$ + RespectStatus: Completed.Notes:You should finish off the "CV" missions.
I also suggest you to finish Zero's missions.
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Saved at The Four Dragons Casino.Enjoy the rest of the game!