You can use two ways to fly - trottle (turn on the engine) or flapping your wings(VTOL)
You can change the angle of the wings or tail by using trim up or down
To take off, use the trottle and pitch and activate ag7, then you can turn off the trottle and deactivate ag 7 and use the wings.
Press ag1 and VTOL to activate wings.
Ag 2 to activate wings trim.
Ag 3 to activate tail trim.
Ag 4 to activate legs trim.Turn off gyroscope(8) in flight, if you want.
Use brakes  to open the beak

Tell me in the comments, if it breaks

The harpy eagle (Harpia harpyja) is a neotropical species of eagle. It is also called the American harpy eagle to distinguish it from the Papuan eagle, which is sometimes known as the New Guinea harpy eagle or Papuan harpy eagle. It is the largest and most powerful raptor found throughout its range, and among the largest extant species of eagles in the world. It usually inhabits tropical lowland rainforests in the upper (emergent) canopy layer. Destruction of its natural habitat has caused it to vanish from many parts of its former range, and it is nearly extirpated from much of Central America. In Brazil, the harpy eagle is also known as royal-hawk (in Portuguese: gavião-real). The genus Harpia, together with Harpyopsis and Morphnus form the subfamily Harpiinae.

Female harpy eagles typically weigh 6 to 9 kg (13 to 20 lb). One source states that adult females can weigh up to 10 kg (22 lb). An exceptionally large captive female, "Jezebel", weighed 12.3 kg (27 lb). Being captive, this large female may not be representative of the weight possible in wild harpy eagles due to differences in the food availability. The male, in comparison, is much smaller and m